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College of Medicine Curriculum Vitae Douglas Ray Pedersen

Douglas Ray PedersenMay 10, 2023

I. EDUCATIONAL AND PROFESSIONAL HISTORY

Education

1965–1967 Pre-med, The University of Iowa, Iowa City, IA1974–1975 Engineering, University of Missouri, Columbia, MO1979 B.S. Biomedical Engineering, The University of Iowa, Iowa City, IA1983 M.S. Mechanical Engineering, The University of Iowa, Iowa City, IA1998 Ph.D. Biomedical Engineering, The University of Iowa, Iowa City, IA

Professional Appointments

1979–1994 Research Assistant, College of Medicine, Department of Orthopaedic Surgery, The University of Iowa

1994–2000 Research and Development Project Leader, College of Medicine, Department of Orthopaedic Surgery, The University of Iowa

2000–2002 Research Scientist, College of Medicine, Department of Orthopaedic Surgery, The University of Iowa

2002–2009 Research Engineer, College of Medicine, Department of Orthopaedic Surgery, The University of Iowa

2001– Adjunct Associate Professor, College of Engineering, Department of Biomedical Engineering, The University of Iowa

2002– Graduate College Faculty, The University of Iowa2009– Research Associate Professor, College of Medicine, Department of Orthopaedics &

Rehabilitation, The University of Iowa

Honors and Awards

1967 University Merit Scholarship for Freshmen, The University of Iowa1967 Honors Status, The University of Iowa College of Liberal Arts1977 Dean's List, The University of Iowa College of Engineering1978 Dean's List, The University of Iowa College of Engineering1979 Dean's List (4.0), The University of Iowa College of Engineering1981 Otto E. Aufranc Award, The Hip Society1984 Otto E. Aufranc Award, The Hip Society1987 Crenshaw: CAMPBELL'S OPERATIVE ORTHOPAEDICS, ed.7; requested contribution

from "An Axisymmetric Model of Acetabular Components in Total Hip Arthroplasty"1993 Frank Stinchfield Award, The Hip Society - James MacKenzie, MD "Areas of Contact

and Extent of Gaps with Implantation of Oversized Acetabular Components in Total Hip Arthroplasty"

1994 ASTM Committee F-4 Student Paper Competition Award1994 ASME BED Doctoral Student Paper Competition Finalist1995 College of Medicine Melvin Marcus Clinical Research Award. Maxian T, Brown T,

Pedersen D, Callaghan J1995 Clinical Research Medical Student Award, American Federation for Clinical Research.

Maxian T, Brown T, Pedersen D, Callaghan J


1996 Frank Stinchfield Award, The Hip Society - Tina Maxian, MS "Three Dimensional Sliding/Contact Computational Simulation of Acetabular Wear in THA"

1997 Frank Stinchfield Award, The Hip Society - Jon D. Hop, MD "An IN VIVO Model of Third Body Wear Contribution of Cable Debris Generation to Accelerated Polyethylene Wear and Acetabular Component Loosening"

1997 William H. Harris Award, Orthopaedic Research Society and the William Harris Fellows1997 Albert J. Key Award, Mid-America Orthopaedic Association, Hop J, Pedersen D,

Callaghan J1999 John Charnley Award, The Hip Society - John J. Callaghan, MD "Practice Surveillance:

A Practical Method to Assess Outcome and to Perform Clinical Research"2000 American Society of Mechanical Engineers, Bioengineering Division Master's-level

student paper, Nadzadi M, Pedersen D, Callaghan J, Brown T2000 Clinical Biomechanics Award, American Society of Biomechanics, Nadzadi M, Pedersen

D, Yack, H, Callaghan J, Brown T2003 Clinical Biomechanics Research Award, Orthopaedic Research and Education

Foundation and the Orthopaedic Research Society, Callaghan JJ, Pedersen DR, Brown TD, Johnston RC: The Clinical Biomechanics of Wear in Total Hip Arthroplasty

2004 Guest Lecturer at 4th Chinese Speaking Orthopaedic Society Scientific Congress, September 22–26, 2004, Beijing, China

2004 Visiting Scholar/Lecturer (September 28 – October 3, 2004)Joint Prosthesis Technology Research Center, Taipei, TaiwanChung Yuan Christian University, Chung Li, TaiwanProf. WB Chen’s Biomedical Engineering Laboratory, Zhong-Yuan University, Zhong-Li City, TaiwanProf. CK Cheng’s Orthopaedic Biomechanics Laboratory, National Yang Ming UniversityTaipei City, TaiwanMackay Memorial Hospital Research Center, Taipei City, TaiwanUnited Orthopaedic Corporation, Xin-Zhu County, Taiwan

2006 Pre-Doctoral Young Biomechanics Scientist Award (Hannah Lundberg), ASB2009 Nicolas Andry Award, Association of Bone and Joint Surgeons2011 William H. Harris Award, Orthopaedic Research Society and the William Harris Fellows2012 Clinical Biomechanics Research Award, Orthopaedic Research and Education

Foundation and the Orthopaedic Research Society, Brown TD, Elkins, JM, Pedersen DR, Callaghan JJ.

2012 Iowa Orthopaedic Society Medical Research Award for Musculoskeletal Research, Elkins, JM, Callaghan JJ, Brown TD, Pedersen DR.

2012 American Society of Biomechanics Pre-Doctoral Young Scientist AwardJacob M Elkins, DR Pedersen, JJ Callaghan, TD Brown

2012 D.C Spriestersbach Dissertation Prize in mathematics/physical sciences/engineeringJacob M Elkins, “Biomechanics of Failure Modalities in Total Hip Arthroplasty.”Advisors: TD Brown, DR Pedersen, JJ Callaghan

2012 E.W. Johnson, Jr. MD Physician in Training Award: Mid-America Orthopaedic SocietyRyan K Takenaga, NA Bedard, SS Liu, AL Klaassen, DR Pedersen, JJ Callaghan

2012 Keynote Speaker: Components of Finite Element Modeling of Joint Construct Stability14th Conference of Human Biomechanics at Castle Hotel Třešť November 5-7, 2012Czech Society of Biomechanics, Institute of PhysiologyAcademy of Sciences of the Czech Republic

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II. TEACHING AT THE UNIVERSITY OF IOWA

Teaching Activities

1979 Materials Science Laboratory Instructor, The University of Iowa College of Engineering1983–1990 University of Iowa Exercise Science and Sports Physiology, Develop Biomechanics

Teaching Software on Micro-computers1984– Guest lectures on Gait analysis/seminars on current research projects - Biomedical

Engineering, Physical Therapy, and Exercise Science

2002 Honors project mentor: Michael Doty Biomedical Engineering (2-D Clinical Projections from 3-D CT Image Processing)

2003 051:158 Biomechanics of Orthopaedic Devices and Implants, Biomedical Engineering

2003 Honors project mentor: Heather Ralston Biomedical Engineering (Radiographic Natural History of Developmentally Dysplastic and Asymptomatic Hips)

2004 Engineering Honors Seminar 57:001 Mentor. Jessica A. Leinen (The Effect of Pelvic Orientation on Acetabular Volume Measurements)

Student Research Projects

Orthopaedic Residents 1982Stephen A. Yoder Total Hip Arthroplasty. A Long-Term Follow-Up

1983John J. Callaghan Hip Arthrodesis. A Long-Term Follow-Up

1984Lawernce D. Bell Performance Characteristics of a 20 MHz Pulsed Ultrasound Doppler

Velocimeter for Studies of Microvascular Hemodynamics

1987Thomas A. Malvitz Closed Reduction for Congenital Dysplasia of the Hip

1989Richard Berger Three-dimensional Carpal Kinematics 1993Lacy E. Thornburg Three-Dimensional Contact Stress Distributions for Acetabular Dome

Fractures: A Re-Fracture Model to Address Site Specificity 1995George J. Emodi The Effect of Surgically Induced Parameters on Posterior Cruciate Ligament

Function Following Total Knee Arthroplasty 1996Kristi L. Weber Comparison of Acetabular Wear in Primary versus Revision THASteven Madey

1997

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Jon D. Hop An In Vivo Model of Third Body Wear Contribution of Cable Debris Generation to Accelerated Polyethylene Wear and Acetabular Component Loosening

2000Peter Pardubsky Digital Measurement of Cartilage Tenacin Content

2001Erin Forrest Long-Term Follow-up of THA

2000–2001J. A. Morcuende Radiographic Measurements in DDH

2001–2002Jay Keener 25-30 Year Follow-up of Cemented Charnley THA in Patients Under 50Robert Kadoka 15-Year Follow-up of Agility Total Ankle Replacement (Dr. Alvine’s first 100)

2001Aimee Klapach Long-term Follow-up of THA in DDH Patients

2001–2003Karen Evanson Long-term Follow-up of DDH Patients Treated With Pelvic Osteotomies

2002–Robert Kadoka Radiographic Follow-up of STAR Total Ankle ReplacementsSteve Knecht 15-Year Radiographic and Clinical Follow-up of Alvine Total Ankle

ReplacementsGeoff Haft Clinical follow-up of conservatively-treated DDH patientsAimee Klapach Acetabular Wear in Primary versus Revision THA

2007Aaron J. Altenburg The Effect of Cable Debris on Acetabular Construct Durability in Cemented

Total Hip Arthroplasty at 19 to 20 Year Follow-Up

2008

Ingvild Engesæter AP Pelvic Digitizing for the Norwegian Arthroplasty Register

2010-2011Nicholas A. Bedard Cementless THA for the Treatment of Osteonecrosis at 10 Year Follow-Up:

Have We Improved?

2010Heather A. Campion Evaluation of Outcomes of Complex Idiopathic Clubfeet

2010-2011Michael D. Stefl Primary Cementless Acetabular Fixation at Minimum 20-Year Follow-up:

Are We Improving Compared to Cemented Fixation?

2010-2011Matthew J. Teusink Long-Term Femoral Remodeling in Charnley THA

2010-2011Bryan N. Trumm Revision with Cementless Acetabular Components at Minimum 20 Year

Follow-Up: Have We Improved? 2012-13

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Mai Nguyen Long-term Soft Tissue Assessment of Ankle Distraction Patients

2013Michael C Willey Rabbit stifle distraction

Ryan Takenaga Do We Need Pedometer Data to Differentiate Long-Term Function FollowingTotal Hip Replacement?

Radiology Residents 2012-2013Christopher M Luty Structured reporting of knee injury MRI

Biomedical Engineering Graduate Students 1981–1982James R. Tolbert Engineering Analysis of Total Hip Component Design

1982Fritz van Krieken Prediction of Muscle and Joint Loads After Segmental Femur Replacement

for Osteosarcoma.

1985–1986Cheng K. Cheng Muscle Force Estimations Using Nonlinear Programming

1985–1987Donald Anderson Contact Stress Aberrations Following Imprecise Reduction of Intra-Articular

Fractures 1986–1988Kelly J. Baker Biomechanics of Femoral Head Aseptic Necrosis

1991–1993Douglas J. Adams Adaptive Bone Remodeling in the Functionally Isolated Turkey Ulna

1992–1993Vincente Ricos-Furio Effects of Constitutive and Geometric Modelling Simplifications on Stresses

Computed in the Turkey Ulna (Universitat Politecnica de Catalunya)

1993Janet L. Ronsky Contact Stress Distributions on In-Situ Patellofemoral Joint Cartilage Contact

(University of Calgary)

1994Evelyne M. Hasler Comparison of Theoretically Calculated and Measured Patellofemoral

Contact Forces in the Cat Knee Joint (University of Calgary)

1994–1995Jiro Sakamoto Computer Assisted Planning of Head-Preserving Surgery in Femoral Head

Osteonecrosis

1994–1997Tina A. Maxian Sliding-Distance-Coupled Finite Element Polyethylene Wear in Total Hip

Arthroplasty

1995–1996

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Micahel Bottlang Flow Field Visualization in Cell Culture Mechanostimulus SystemDaniel Fitzpatrick Three-dimensional Ankle Screw Displacement Axis of RotationErica Skaro Three-dimensional Wrist Screw Displacement Axis of Rotation

1996-1997Jason K. Otto Characterize the Dynamic Response of a Piezoresistive Contact Stress

Sensor

1997John C. Nieman Localized Regions of Head Roughening on FE Model Third Body Wear

Variability

1997–1998Christopher Scifert Direct Physical Validation of a Finite Element Model of Total Hip Dislocation

1999–2001Mark Nadzadi Total Hip Dislocation (in vivo) Kinematics and Finite Element Analysis

2001–2003Yang David Dai Interactive Computer Modeling of (3-D CT) Acetabular Fracture Reduction

2003–2005Mary E. Russell Cartilage Contact Pressure Elevations in Dysplastic Hips: A Model of Chronic

Overload 2003–2005Nicole A. Kallemeyn Articular Cartilage Mechanics in Response to Triaxial Compression: A

Poroelastic Finite Element Model

2003–2005Kiran H. Shivanna Automating Patient-Specific Diarthrodial Joint Contact Model Development

2003–2005Megan P. Rumery A Pose-Based Image Analysis Technique for Measuring Total Disc

Replacement Wear

2002–2006Hannah J. Lundberg Third Body Acceleration of THA Wear

2005–2007Kimberly S. Mittelholtz Finite Element Analysis of Total Disc Replacement Wear

2005–2007S.F. Moussavi-Harami Custom Image Analysis Program for Automated Objective Scoring of

Histologically Apparent Cartilage Degeneration

2007–2009Sirisha Tadimalla Evaluation of posttraumatic changes in cartilage using T1ρ, T2 imaging and

dGEMRIC: A line profile based approach

2008–2010Nicholas J. Stroud Advancements of a Servohydraulic Human Hip Joint Motion Simulator for

Experimental Investigation of Hip Joint Impingement/Dislocation

2007–2013Jacob M. Elkins MSTP: Surgical-, Patient-, and Implant-Specific Predictors of Failure in Total

Hip Arthroplasty – Finite Element Analysis

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2009–2011Noelle F. Klocke Characterizing Cartilage-Specific T1rho MRI for Clinical Translation and

Application

2014-David Heckelsmiller Establishing Diagnostic Tools for Post-Traumatic OA In Vivo

Biomedical Engineering Undergraduate Students 1982David Bondi Hemodynamic Comparison of Interrupted and Continuous Microarteriorraphy

Techniques

1992Micahel Bottlang Hyperelastic Constitutive Properties of Polydimethyl Siloxane Cell Culture

Membranes

1996Dawn E. Morrow Prototype Drill-guide for Fibular Graft Placement in Femoral Head NecrosisSanjay B. DaveMicahel J. Schnieders

1999–2001Michael Doty Biomedical Engineering: Wear analysis of total hip replacements.

2001Colleen Lamb Develop computer-based digital follow-up of DDH radiographs

2002Michael Doty Honors project mentor: 2-D Clinical Projections from 3-D CT Image

Processing Heather Ralston 40-year radiographic natural history of DDH patients and hip joint articular

contact stress from standard clinical AP radiographsCrystal Panages Clinical follow-up of conservatively-treated DDH patientsJessica Leinens 3rd Body Wear–LTFU of IMB wire/cable patients for NIH wear grantAndrea Hayes Radiographic follow-up of Scandinavian Total Ankle Replacements

2007Nicolas J. Stroud Motorized Tissue Chamber for Use in Confocal MicroscopyNick LeymasterDan Schenck

2012Samantha Bornmann Modeling Osteotomies to realign tibio-femoral jointPaul McKinley Synovial fluid composition affects T1rho relaxation times

Fellows and Visiting Scholars 1981–1982Bertil Romanus Gait analysis and Foot-floor Barography

19827


Kenichi Murase Finite Element Analysis of Tibial Component Design in Total Knee Arthroplasty

1985Mark S Vrahas In Vivo Passive Moment Measurements in the Human Hip

1986–1987Joseph Feinberg Modeling of Canine Pelvic Limb Muscular AnatomyAlexander L. Bell Accuracy of Several Hip Joint Center Location Prediction Methods

1992Steven A. Meyer The Effects of Patella Infera on Patellofemoral Contact Stress

1992James MacKenzie Areas of Contact and Extent of Gaps with Implantation of Oversized

Acetabular Components in Total Hip Arthroplasty

1993Yong Sik Kim Reamed Surface Topology and Component Seating in Press-Fit Cementless

Acetabular Fixation(St. Mary’s Hospital Catholic Medical College, Seoul)

1994Kathi Teixeira The Effects of Grip on Wrist Motion

1995Adrienne Spirt The Effects of Wingflap on New Bone Formation in a Turkey Model

1996Yongde Zhang Flexural Rigidity of Human Fibular Bone Grafts

1996T. Takatsu The Effect of Surgically Induced Parameters on Posterior Cruciate Ligament

Function Following Total Knee Arthrpolasty

2008Matej Daniel Combining AP Pelvic Digitizing and DEA Hip Stress Calculations

2011Matej Daniel Fulbright Scholar

2011-12Andrea Veljkovic TAR Follow-up measurement program

2012Stefano D'Adamio Femoral-tibial osteotomies to realign knee compartment loadingVena, Giuseppe Femoral-tibial osteotomies to realign knee compartment loading

2013Salvatore Bisicchia EOS 3D limb alignment pre/post osteotomyFederica Rosso Cartilage condition pre/post osteotomy

Medical Students 1988Steve E. Pierotti Are Leg EMG Profiles Symmetrical?

1996David A. Anderson Prototype Drillguide for Fibular Graft Placement in Femoral Head Necrosis

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1998Jay C Albright 10 Year Follow-Up of Cementless HG-I Acetabular ComponentsKaren Miller Acetabular Wear in Primary versus Revision THAErin Forest Long-term Follow-up of THA PatientsAimee Klapach Long-term Follow-up of THA Patients

1999Brad Heithoff Long Term Follow-up of Dislocation of the Hip Following Total Hip

ArthroplastyJesse Templeton 1) Long Term follow-up of Hybrid Revision;

2) Long Term follow-up of RFC Knee; 3) Follow-Up of Femoral Impaction Allografting in Revision Hip Surgery

Steve Liu 14-15 Year Follow-up of Matte Finish Iowa Total Hip ComponentTodd Johnston Minimum Five Year Follow-up of Polished Iowa ComponentsTad Vernon 40-year follow-up of DDH patients

2000Brad Heithoff Long Term Follow-up of Dislocation of the Hip Following Total Hip

ArthroplastyGary B. Fetzer Long-Term Follow-up of Total Hip ArthroplastiesJesse Templeton 1) Long Term Follow-up of Hybrid Revision

2) Long Term Follow-up of RFC Knee3) Intermediate Term Follow-Up of Femoral Impaction Allografting in Revision Hip Surgery

Steve Liu 14-15 Year Follow-up of Matte Finish Iowa Total Hip ComponentTodd Johnston Dislocations at Five Year Follow-up of Polished Iowa ComponentsChris McAndrew Total Hip Arthroplasty Wear Rate Distributions are Non-Gaussian

2001John Gaffey 15-Year Follow-up of HG Hybrid revision THAJesse Templeton 30 Year Follow-up of Cemented Charnley THASteve Liu 30 Year Follow-up of Cemented Charnley THAKyle Aliman Radiographic follow-up of Alvine Total Hip ArthroplastyGary B Fetzer Long-Term Follow-up of Total Hip Arthroplasties

2002Jesse Templeton 30 Year Follow-up of Cemented Charnley THASteve Liu 30 Year Follow-up of Cemented Charnley THAKyle Aliman Radiographic follow-up of Alvine Total Hip ArthroplastyClifford Novak Constrained liner LTFU – Iowa, Mao, DMOSBrian Schroeder Closed Reductions for DDH: Juvenile Radiographic Natural History

2003Andrea Buckwalter Long-term Follow-up of 2000 Primary THAs

2007Andrea Buckwalter Results of Charnley Total Hip Arthroplasty With the Use of Improved Femoral

Cementing Techniques at a Minimum of Twenty-Five Year

2012-2013

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Tyler J Willman Moderately Cross-linked Polyethylene in Total Hip Arthroplasty: Results at Minimum 10-year Follow-up. Pinnacle Total Hip Arthroplasty follow-up (with wear).

Justin J Greiner Metal-on-Metal Total Hip Arthroplasty at Five to Nine Year Follow-upAdam A Norton Total ankle replacement and implant alignmentNic Bedard Cementless Total Hip Arthroplasty in Patients Fifty Years of Age or Younger:

A Minimum Ten-Year Follow-up

Other Students 1982Karen A. Joos Hemodynamic Comparison of Interrupted and Continuous Microarteriorraphy

Techniques (Anatomy)

1996-1998John Rossmann THA UHMWPE wear measurements (Management Information Systems)Justin R. Pedersen LTFU of THA wear and clinical database (Management Information Systems)

1998-1999Chris McAndrew THA UHMWPE wear measurements (BS Sociology - Northwestern)

2000Jeff Hauke Device for Tracking Knee Kinematics of Maneuvers (Physical Therapy)Ruchika Wahi Maneuvers Commonly Responsible for Hip Dislocation (Physical Therapy)Jason Wilken 3-D Movements Associated with THA Dislocation (Physical Therapy)

2001Ruchika Wahi Maneuvers Commonly Responsible for Hip Dislocation (Physical Therapy)

2002Andrea Buckwalter LTFU all Charnley THA at DMOS (BS Anthropologic Biology - Duke)Mira Estin LTFU Multi-center Depuy scans of Agility TAA radiographs (Iowa City City

High) 2013Thijmen Struik Joint Distraction in Treatment of End-Stage Knee Osteoarthritis (PhD,

University Medical Center, Rheumatology & Clinical Immunology, Utrecht, The Netherlands)

Other Academic Activities

1981 Implement Orthopaedic Biomechanics Lab connection to campus broadband as first College of Medicine research lab to be networked.

1983 University of Iowa College of Law, Clinical Law Program, Data Presentation for Plaintiff in Extended School Year, Special Education at Grant Wood Area Community College

1984 University of Iowa Department of Physics and Astronomy, Build the Radio-Astronomy Observatory computer operating system

1984 University of Iowa Department of Physical Therapy Education, Build a teaching/research computer operating system

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1985–1988 University of Iowa Department of Speech Pathology and Audiology, Computer systems

1983–1990 United States Olympic Committee Scientific Support Program; Develop biomechanical performance analysis programming of male and female long jump and triple jump athletes (USOC and Universal Gym Equipment funding, Prof. James G Hay, Department of Exercise Science, The University of Iowa)

1986–1990 United States Gymnastics Federation; Develop biomechanical performance analysis of men's and women's gymnastic vaulting events (USOC funding, Prof. Yoshiaki Takei, Department of Physical Education, Northern Illinois University)

1988–1990 International Olympics Committee, Summer Olympiad in Seoul, South Korea; Analysis of men and women's vaulting, long jump and triple jump events (USOC funding, Prof. James G Hay, Department of Exercise Science, The University of Iowa)

1985–1990 Iowa Department of Public Instruction: Iowa Articulation Norms Project; Develop standardized testing of Iowa child speech articulation and assess phonetic development, with Prof. Ann Smit, The University of Iowa Wendall Johnson Speech and Hearing Center; Express 900 potential sound descriptors in any combination for 108 noun-photographs (Lotus analysis)

1988–1990 Nebraska Department of Public Instruction: Articulation Norms Project; with Prof. Ann Smit, Chairman of the Kansas State University Department of Speech and Hearing. Define phonetic development of 250 Nebraska children using the Iowa Articulation Norms Test. Perform a comparative analysis (Lotus) for Midwest phonetic definition

1998 Smit-Hand Articulation and Phonology Evaluation (SHAPE, formerly known as the Iowa Articulation Norms Project), Western Psychological Services

2004 Visiting Scholar/Lecturer (September 28 – October 3, 2004)

Visiting ScholarJoint Prosthesis Technology Research CenterTaipei, Taiwan

Visiting LecturerChung Yuan Christian UniversityChung Li, Taiwan

Visiting ProfessorProf. WB Chen’s Biomedical Engineering LaboratoryZhong-Yuan UniversityZhong-Li City, Taiwan

Visiting ProfessorProf. CK Cheng’s Orthopaedic Biomechanics LaboratoryNational Yang Ming UniversityTaipei City, Taiwan

Visiting Scholar11


Mackay Memorial Hospital Research CenterTaipei City, Taiwan

Visiting Biomedical EngineerUnited Orthopaedic CorporationXin-Zhu County, Taiwan

2012 Keynote Speaker14th Conference of Human Biomechanics at Castle Hotel Třešť November 5-7, 2012Czech Society of BiomechanicsInstitute of PhysiologyAcademy of Sciences of the Czech Republic

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http://www.zamek-trest.cz/


2013 Lecturer GE 7T Corporate Representatives Orthopaedic MSK Imaging Research MR Research Facility (MRRF), February 5, 2013

Visiting Lecturer Biopsies and Imaging at ACL Reconstruction

Amsterdam Sports Center Site Visit, March 25-26, 2013

Lecturer Establishing Treatments and Diagnostic Tools for Post-Traumatic OA in Vivo

ASC Traveling Fellows, June 19, 2013

Lecturer Imaging Acute ACL Rupture Injuries: A Multi-Discipline Process

MOON Consortium Meeting, Chicago, IL, July 7, 2013

Lecturer ICTS 7T Neuroimaging Symposium, September 12, 2013

Visiting Professor/Lecturer Imaging Biomarkers of Post-Traumatic Osteoarthritis after ACL Injury: A Multi-Discipline

Process Beihang University, November 8, 2013

Lecturer Effects of Head Size on Metal-on-Metal Edge-Loading and Dislocation

Chinese Orthopaedic Association/World Orthopaedic Alliance Congress, Beijing, China, November 7-10, 2013

Visiting Professor Special invitation for all opinion leaders to participate in the World Orthopaedic Alliance – Beijing Summit, Beijing, China, November 8, 2013

Lecturer 100 Years of Orthopaedics, University of Iowa Department of Orthopaedics and Rehabilitation, October 11-12, 2013

Lecturer Radiology-IIBI_MSK-Imaging Seminar, November 15, 2013

Lecturer Imaging Biomarkers of Post-traumatic Osteoarthritis after ACL Injury Hawkeye Sports Medicine Symposium, University of Iowa, December 12, 2013

III. SCHOLARSHIP

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Publications and Presentations

163 Peer-reviewed articles392 Abstracts408 Scientific presentations

Journal Publications

[1.] Crowninshield RD, Pedersen DR, Brand RA. A measurement of proximal femur strain with total

hip arthroplasty. Journal of Biomechanical Engineering. 1980;102:230–233.

1.[2.] Crowninshield RD, Brand RA, Johnston RC, Pedersen DR. An analysis of femoral prosthesis

design: The effects on proximal femur loading. The Otto Aufranc Award Paper. The Hip.

1981;111–122.

2.[3.] Crowninshield RD, Brand RA, Johnston RC, Pedersen DR. An analysis of collar function and

the use of titanium in femoral prostheses. Clinical Orthopaedics & Related Research. 1981;

(158):270–277.

3.[4.] Brand RA, Crowninshield RD, Wittstock CE, Pedersen DR, Clark CR, van Krieken FM. A model

of lower extremity muscular anatomy. Journal of Biomechanical Engineering. 1982;104(4):304–

310.

4.[5.] Brand RA, Crowninshield RD, Pedersen DR. Architecture of the periacetabular trabecular bone.

Orthopaedics. 1982;5:299–304.

5.[6.] Brand RA, Crowninshield RD, Johnston RC, Pedersen DR. Forces on the femoral head during

activities of daily living. The Iowa Orthopaedic Journal. 1982;2:43–49. PMCID2328831.

6.[7.] Pedersen DR, Crowninshield RD, Brand RA, Johnston RC. An axisymmetric model of

acetabular components in total hip arthroplasty. Journal of Biomechanics. 1982;15(4):305–315.

7.[8.] Blair WF, Gabel RH, Pedersen DR, Greene ER. A method for programmed, rapid range control

advance with the 20 MHz PUDVM. Biomedical Sciences Instrumentation. 1983;19:25–29.

8.[9.] Blair WF, Pedersen DR, Joos K, Bondi DR. A hemodynamic comparison of interrupted and

continuous microarteriorraphy techniques. Infomedix. 1983;298–303.

9.[10.] Crowninshield RD, Pedersen DR, Brand RA, Johnston RC. Analytical support for acetabular

component metal backing. The Hip. 1983;207–215.

10.[11.] Crowninshield RD, Johnston RC, Brand RA, Pedersen DR. Pathologic ligamentous

constraint of the hip. Clinical Orthopaedics & Related Research. 1983;(181):291–297.

11.[12.] Crowninshield RD, Brand RA, Pedersen DR. A stress analysis of acetabular reconstruction in

protrusio acetabuli. Journal of Bone & Joint Surgery - American Volume. 1983;65(4):495–499.

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12.[13.] Crowninshield RD, Brand RA, Johnston RC, Pedersen DR, Wilson MA, Tolbert JR. An

engineering analysis of total hip component design. Orthopaedic Review XII. 1983;11:33–45.

13.[14.] Murase K, Crowninshield RD, Pedersen DR, Chang TS. An analysis of tibial component

design in total knee arthroplasty. Journal of Biomechanics. 1983;16(1):13–22.

14.[15.] Murase K, Tsukahara S, Saito S, Crowninshield RD, Pedersen DR. A finite element analysis

of tibial component design in total knee arthroplasty. Biomechanics. 1983;VII B:1023–1031.

15.[16.] Pedersen DR. A finite element analysis of acetabular reconstruction. Iowa City, Iowa:

Masters Thesis, Mechanical Engineering, The University of Iowa; 1983.

16.[17.] Blair WF, Pedersen DR, Joos K, Bondi D. Interrupted and continuous microarteriorrhaphy

techniques: A hemodynamic comparison. Journal of Orthopaedic Research. 1984;2(4):419–

424.

17.[18.] Brand RA, Pedersen DR. Computer modeling of surgery and a consideration of the

mechanical effects of proximal femoral osteotomies. The Otto Aufranc Award Paper. The Hip.

St. Louis: C V Mosby Company; 1984;193–210.

18.[19.] Bell LD, Blair WF, Pedersen DR, Gabel RH. A hemodynamic evaluation of cuffed

microarteriorrhaphy. Microsurgery. 1985;6(2):106–112.

19.[20.] Blair WF, Pedersen DR, Joos K, Green ER, Bondi D. Microarteriorrhaphy: Blood flow after

wound healing. Microsurgery. 1985;6(2):116–120.

20.[21.] Brand RA, Yoder SA, Pedersen DR. Interobserver variability in interpreting radiographic

lucencies about total hip reconstructions. Clinical Orthopaedics & Related Research. 1985;

(182):237–239.

21.[22.] Brown TD, Gabel RH, Pedersen DR, Bell LD, Blair WF. Some characteristics of laminar flow

velocity spectra detected by a 20 MHz pulsed ultrasound Doppler. Journal of Biomechanics.

1985;18(12):927–938.

22.[23.] Brown TD, Bell LD, Pedersen DR, Blair WF. A three-dimensional computational simulation of

some sources of measurement artifact in microvascular pulsed ultrasound Doppler velocimetry.

Journal of Biomechanical Engineering. 1985;107(3):274–280.

23.[24.] Callaghan JJ, Brand RA, Pedersen DR. Hip arthrodesis. A long-term follow-up. Journal of

Bone & Joint Surgery - American Volume. 1985;67(9):1328–1335.

24.[25.] van Krieken FM, den Heeten GJ, Pedersen DR, Brand RA, Crowninshield RD. Prediction of

muscle and joint loads after segmental femur replacement for osteosarcoma. Clinical

Orthopaedics & Related Research. 1985;(198):273–283.

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25.[26.] Blair WF, Chang L, Pedersen DR, Gabel RH, Bell LD. Hemodynamics after autogenous,

interpositional grafting in small arteries. Microsurgery. 1986;7(2):84–86.

26.[27.] Brand RA, Pedersen DR, Friederich JA. The sensitivity of muscle force predictions to

changes in physiologic cross-sectional area. Journal of Biomechanics. 1986;19(8):589–596.

27.[28.] Brand RA, Pedersen DR, Yoder SA. How definition of "loosening" affects the incidence of

loose total hip reconstructions. Clinical Orthopaedics & Related Research. 1986;(210):185–191.

28.[29.] Yoder SA, Brand RA, Pedersen DR, O'Gorman TW. The effect of acetabular position on total

hip component loosening rates. The Iowa Orthopaedic Journal. 1986;6:75–81. PMCID2328927.

29.[30.] Pedersen DR, Brand RA, Cheng C, Arora JS. Direct comparison of muscle force predictions

using linear and nonlinear programming. Journal of Biomechanical Engineering.

1987;109(3):192–199.

30.[31.] Singerman RJ, Pedersen DR, Brown TD. Quantitation of pressure-sensitive film using digital

image scanning. Experimental Mechanics. 1987;27:99–105.

31.[32.] Brown TD, Anderson DD, Nepola JV, Singerman RJ, Pedersen DR, Brand RA. Contact

stress aberrations following imprecise reduction of simple tibial plateau fractures. Journal of

Orthopaedic Research. 1988;6(6):851–862.

32.[33.] Brown TD, Pedersen DR, Radin EL, Rose RM. Global mechanical consequences of reduced

cement/bone coupling rigidity in proximal femoral arthroplasty: a three-dimensional finite

element analysis. Journal of Biomechanics. 1988;21(2):115–129.

33.[34.] Yoder SA, Brand RA, Pedersen DR, O'Gorman TW. Total hip acetabular component position

affects component loosening rates. Clinical Orthopaedics & Related Research. 1988;(228):79–

87.

34.[35.] Bell AL, Brand RA, Pedersen DR. Prediction of hip joint centre location from external

landmarks. Human Movement Science. 1989;8:3–16.

35.[36.] Pedersen DR, Brand RA. (1989) Knee joint moment assumptions affect hip joint force

calculations. In: Stein JL, Miller JA Ashton, Pandy MG (Eds.) Issues in the Modelling and

Control of Biomechanical Systems, ASME DSC.17(H00550).

36.[37.] Bell AL, Pedersen DR, Brand RA. A comparison of the accuracy of several hip center

location prediction methods. Journal of Biomechanics. 1990;23(6):617–621.

37.[38.] Bell AL, Brand RA, Pedersen DR. A comparison of the external pelvic dimensions of

caucasian children and adults. The Pittsburgh Orthopaedic Journal. 1990;1:31–34.

38.[39.] Brand RA, Pedersen DR, Davy DT, Heiple KG, Goldberg VM. Hip force calculations and

measurements in the same patient. Journal of Biomechanics. 1990;23:727.16


39.[40.] Brown TD, Pedersen DR, Gray ML, Brand RA, Rubin CT. Toward an identification of

mechanical parameters initiating periosteal remodeling: A combined experimental and analytic

approach. Journal of Biomechanics. 1990;23(9):893–905.

40.[41.] Brown TD, Baker KJ, Pedersen DR, Brand RA. Structural aspects of femoral head

osteonecrosis. Proceedings of Mechanics Computing in 1990s and Beyond, The American

Society of Civil Engineers Conference. 1990;1:559–563.

41.[42.] Pedersen DR, Brown TD, Brand RA. Interstitial bone stress distributions accompanying

ingrowth of a screen-like prosthesis anchorage layer. Journal of Biomechanics.

1991;24(12):1131–1142.

42.[43.] Pedersen DR, Feinberg JH, Brand RA. A model to predict canine pelvic limb musculoskeletal

geometry. Acta Anatomica. 1991;140(2):139–145.

43.[44.] Pierotti SE, Brand RA, Gabel RH, Pedersen DR, Clarke WR. Are leg electromyogram profiles

symmetrical? Journal of Orthopaedic Research. 1991;9(5):720–729.

44.[45.] Brown TD, Pedersen DR, Baker KJ, Brand RA. Mechanical consequences of core drilling

and bone-grafting on osteonecrosis of the femoral head. Journal of Bone & Joint Surgery -

American Volume. 1993;75(9):1358–1367.

45.[46.] Brown TD, Baker KJ, Pedersen DR, Brand RA. Biomechanics of femoral head aseptic

necrosis. Biomedical Engineering - Application, Basis, Communication. 1993;5:9–12.

46.[47.] Brand RA, Pedersen DR, Davy DT, Kotzar GM, Heiple KG, Goldberg VM. Comparison of hip

force calculations and measurements in the same patient. Journal of Arthroplasty.

1994;9(1):45–-51.

47.[48.] Hasler E, Herzog W, Ronsky J, Pedersen D, Brown T, Grood E, Butler D. Comparison

between theoretical and measured contact forces in the cat patellofemoral joint. Journal of

Biomechanics. 1994;27:801.

48.[49.] MacKenzie JR, Callaghan JJ, Pedersen DR, Brown TD. Areas of contact and extent of gaps

with implantation of oversized acetabular components in total hip arthroplasty. The Frank

Stinchfield Award Paper. Clinical Orthopaedics & Related Research. 1994;(298):127–136.

49.[50.] Pedersen DR. Rate of in-vivo polyethylene wear for five different acetabular components

used over a five to twenty-two year period. The ASTM F-4 Award Paper. ASTM Committee F-4

workshop on Ultra High Molecular Weight Polyethylene Materials. May 1994.

50.[51.] Adams DJ, Pedersen DR, Brand RA, Rubin CT, Brown TD. Three-dimensional geometric

and structural symmetry of the turkey ulna. Journal of Orthopaedic Research. 1995;13(5):690–

699.17


51.[52.] Callaghan JJ, Pedersen DR, Olejniczak JP, Goetz DD, Johnston RC. Radiographic

measurement of wear in 5 cohorts of patients observed for 5 to 22 years. Clinical Orthopaedics

& Related Research. 1995;(317):14–18.

52.[53.] Callaghan JJ, Kim YS, Brown TD, Pedersen DR, Johnston RC. Concerns and improvements

with cementless metal-backed acetabular components. Clinical Orthopaedics & Related

Research. 1995;(311):76–84.

53.[54.] Fitzpatrick DC, Foels WS, Pedersen DR, Marsh JL, Saltzman CL, Brown TD. An articulated

ankle external fixation system that can be aligned with the ankle axis. Iowa Orthopaedic Journal.

1995;15:197–203. PMCID2329049.

54.[55.] Kim YS, Brown TD, Pedersen DR, Callaghan JJ. Reamed surface topography and

component seating in press-fit cementless acetabular fixation. Journal of Arthroplasty.

1995;10(Suppl):S14–21.

55.[56.] Ronsky JL, Herzog W, Brown TD, Pedersen DR, Grood ES, Butler DL. In vivo quantification

of the cat patellofemoral joint contact stresses and areas. Journal of Biomechanics.

1995;28(8):977–983.

56.[57.] Callaghan JJ, Kim YS, Pedersen DR, Brown TD. Acetabular preparation and insertion of

cementless acetabular components. Operative Techniques in Orthopaedics. 1996;5:325–330.

57.[58.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. 3-Dimensional sliding/contact

computational simulation of total hip wear. The Frank Stinchfield Award Paper. Clinical

Orthopaedics & Related Research. 1996(333):41–50.

58.[59.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Adaptive finite element modeling of

long-term polyethylene wear in total hip arthroplasty. Journal of Orthopaedic Research.

1996;14(4):668–675.

59.[60.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. A sliding-distance-coupled finite element

formulation for polyethylene wear in total hip arthroplasty. Journal of Biomechanics.

1996;29(5):687–692.

60.[61.] Ricos V, Pedersen DR, Brown TD, Ashman RB, Rubin CT, Brand RA. Effects of anisotropy

and material axis registration on computed stress and strain distributions in the turkey ulna.

Journal of Biomechanics. 1996;29(2):261–267.

61.[62.] Hop JD, Callaghan JJ, Olejniczak JP, Pedersen DR, Brown TD, Johnston RC. Contribution

of cable debris generation to accelerated polyethylene wear. The Frank Stinchfield Award

Paper. Clinical Orthopaedics & Related Research. 1997(344):20–32.

18


62.[63.] Maxian TA, Brown TD, Pedersen DR, McKellop HA, Lu B, Callaghan JJ. Finite element

analysis of acetabular wear. Validation, and backing and fixation effects. Clinical Orthopaedics

& Related Research. 1997;344:111–117.

63.[64.] Meyer SA, Brown TD, Pedersen DR, Albright JP. Retropatellar contact stress in simulated

patella infera. American Journal of Knee Surgery. 1997;10(3):129–138.

64.[65.] Pedersen DR, Brand RA, Davy DT. Pelvic muscle and acetabular contact forces during gait.

Journal of Biomechanics. 1997;30(9):959–965.

65.[66.] Schnieders MJ, Dave SB, Morrow DE, Heiner AD, Pedersen DR, Brown TD. Assessing the

accuracy of a prototype drill guide for fibular graft placement in femoral head necrosis. Iowa

Orthopaedic Journal. 1997;17:58–63. PMCID2378111.

66.[67.] Weber KL, Callaghan JJ, Pedersen DR, Olejniczak JP, Johnston RC. Comparison of

acetabular wear in primary versus revision total hip arthroplasty. AAOS Proceedings.

1997;23:23.

67.[68.] Brown TD, Bottlang M, Pedersen DR, Banes AJ. Loading paradigms—intentional and

unintentional—for cell culture mechanostimulus. American Journal of the Medical Sciences.

1998;316(3):162–168.

68.[69.] Heiner AD, Zhang Y, Pedersen DR, Brown TD. Harvest site and loading direction as

determinants of the flexural rigidity of human fibular bone Grafts. Journal of Musculoskeletal

Research. 1998;2:273–281.

69.[70.] Pedersen DR, Brown TD, Hillis SL, Callaghan JJ. Prediction of long-term polyethylene wear

in total hip arthroplasty, based on early wear measurements made using digital image analysis.

The William Harris Award Paper. Journal of Orthopaedic Research. 1998;16(5):557–563.

70.[71.] Pedersen DR, Brown TD, Maxian TA, Callaghan JJ. Temporal and spatial distributions of

directional counterface motion at the acetabular bearing surface in total hip arthroplasty. Iowa

Orthopaedic Journal. 1998;18:43–53. PMCID2378155.

71.[72.] Pedersen DR. MRI-based finite element models of surgically achieved fibular graft

placement for osteonecrosis of the femoral head. [Doctor of Philosophy]. Iowa City, Iowa:

Biomedical Engineering, Ph. D. Dissertation, The University of Iowa; 1998.

72.[73.] Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. A finite element analysis of factors

influencing total hip dislocation. Clinical Orthopaedics & Related Research. 1998(355):152–162.

73.[74.] Callaghan JJ, Albright JC, Goetz DD, Olejniczak JP, Johnston RC, Pedersen DR. Paper #4

At minimum ten year follow-up, do cementless acetabular components outperform cemented

acetabular components? The Journal of Arthroplasty. 1999 February; 14(2)2:244–245.19


74.[75.] Anderson DA, Schneiders MJ, Heiner AD, Pedersen DR, Brown TD, Brand RA. A surgical

guide to accurately place pins or nails within the femoral head. Journal of Musculoskeletal

Research. 1999;3:233–237.

75.[76.] Callaghan JJ, Johnston RC, Pedersen DR. Practice surveillance: A practical method to

assess outcome and to perform clinical research. The John Charnley Award Paper. Clinical

Orthopaedics & Related Research. 1999(369):25–38.

76.[77.] Callaghan JJ, Kim YS, Pedersen DR, Brown TD. Periprosthetic fractures of the acetabulum.

The Orthopaedic Clinics of North America. 1999;30:221–234.

77.[78.] Callaghan JJ, Kim YS, Pedersen DR, Brown TD. Fractures of the acetabulum after a total hip

arthroplasty. Techniques in Orthopaedics. 1999;14:120–126.

78.[79.] Emodi GJ, Callaghan JJ, Pedersen DR, Brown TD. Posterior cruciate ligament function

following total knee arthroplasty: The effect of joint line elevation. Iowa Orthopaedic Journal.

1999;19:82–92. PMCID1888617.

79.[80.] Pavec M, Brand RA, Pedersen DR, Mavcic B, Kralj-Iglic V, Iglic A. Mathematical modelling of

stress in the hip during gait. Journal of Biomechanics. 1999;32(11):1229–1235.

80.[81.] Otto JK, Brown TD, Heiner AD, Pedersen DR, Callaghan JJ. Static and dynamic response of

a multiplexed-array piezoresistive contact sensor. Experimental Mechanics. 1999;39:317–323.

81.[82.] Scifert CF, Brown TD, Pedersen DR, Heiner AD, Callaghan JJ. Development and physical

validation of a finite element model of total hip dislocation. Computer Methods in Biomechanics

and Biomedical Engineering. 1999;2:139–147.

82.[83.] Mavcic B, Antolic V, Brand R, et al. Weight bearing area during gait in normal and dysplastic

hips. Pflügers Archiv - European Journal of Physiology. 2000;439(3 Suppl):R213–214.

83.[84.] Mavcic B, Antolic V, Brand R, Iglic A, Kralj-Iglic V, Pedersen DR. Peak contact stress in

human hip during gait. Pflügers Archiv - European Journal of Physiology. 2000;440(5

Suppl):R177–178.

84.[85.] Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Comparison of cup anteversion and tilt

effects on dislocation propensity for small-head-size total hip replacements. Advances in

Bioengineering ASME BED. 2000;48:11–12.

85.[86.] Brown TD, Pedersen DR, Callaghan JJ. (2001) What design factors influence wear behvior

at the articulating surfaces in total hip replacement? In: Wright TM, Goodman SB (Eds.) Implant

Wear in Total Joint Replacement: Rosemont, Illinois: American Academy of Orthopaedic

Surgeons.

20


86.[87.] Callaghan JJ, Pedersen DR, Brown TD. (2001) How should wear-related implant

surveillance be carried out and what methods are indicated to diagnose wear-related problems?

In: Wright TM, Goodman SB (Eds.) Implant Wear in Total Joint Replacement: Rosemont,

Illinois: American Academy of Orthopaedic Surgeons.

87.[88.] Callaghan JJ, Heithoff BE, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Prevention

of dislocation after hip arthroplasty: Lessons from long-term follow-up. Clinical Orthopaedics &

Related Research. 2001;393:157–162.

88.[89.] Callaghan JJ, Pedersen DR. (2001) How should wear-related implant surveillance be carried

out and what methods are indicated to diagnose wear-related problems? In: Wright TM,

Goodman SB (Eds.) Implant Wear In Total Joint Replacement: Clinical and Biologic Issues,

Material and Design Considerations. (pp. 24–30) Rosemont, Illinois: American Academy of

Orthopaedic Surgeons.

89.[90.] Heithoff BE, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Dislocation

after total hip replacement: A single surgeon's experience. Orthopedic Clinics of North America.

2001;32(4):587–591.

90.[91.] Malkani AL, Voor MJ, Rennirt G, Helfet D, Pedersen DR, Brown TD. Increased peak contact

stress following incongruent reduction of transverse acetabular fractures: A cadaveric model.

The Journal of Trauma. 2001;15(4):704–709.

91.[92.] Pedersen DR, Callaghan JJ, Johnston TL, Fetzer GB, Johnston RC. Comparison of femoral

head penetration rates between cementless acetabular components with 22 millimeter and 28

millimeter Heads. Journal of Arthroplasty. 2001;16:111–115.

92.[93.] Rennirt G, Helfet D, Brown TD, Pedersen DR. Increased peak contact stress following

incongruent reduction of transverse acetabular fractures: A cadaveric model. The Journal of

Trauma. 2001;15(4):704–709.

93.[94.] Scifert CF, Noble PC, Brown TD, Bartz RL, Kadakia N, Sugano N, Johnston RC, Pedersen

DR, Callaghan JJ. Experimental and computational simulation of THA dislocation, with long

term clinical correlation. Orthopedic Clinics of North America. October 2001;32(4):553–568.

94.[95.] Urban JA, Garvin KL, Boese CK, Bryson L, Pedersen DR, Callaghan JJ, Miller RK. Ceramic-

on-polyethylene bearing surfaces In cemented total hip arthroplasty: Seventeen to twenty-one-

year results. Journal of Bone and Joint Surgery. 2001;83A(11):1688–1694.

95.[96.] Ivapec M, Brand RA, Pedersen DR, Mavcic B, Kralj-Iglic V, Iglic A. Erratum to: "Mathematical

modelling of stress in the hip during gait" [Journal of Biomechanics. 1999;32(11):1229–1235]

Journal of Biomechanics. April 2002;35(4):555.21


96.[97.] Brown TD, Stewart KJ, Nieman JC, Pedersen DR, Callaghan JJ. Local head roughening as a

factor contributing to variability of total hip wear: A finite element analysis. Journal of

Biomechanical Engineering. December 2002;124(6):691–698.

97.[98.] Callaghan JJ, Brown TD, Pedersen DR, Johnston RC. Choices and compromises in the use

of small head sizes (under 32 mm) in total hip arthroplasty. Clinical Orthopaedics & Related

Research. Dec 2002;405:144–149.

98.[99.] Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Effects of acetabular component

orientation on dislocation propensity for small-head-size total hip arthroplasty. Clinical

Biomechanics. 2002;17(1):32–40.

99.[100.] Keener JD, Callaghan JJ, Goetz DD, Pedersen DR, Sullivan PM, Johnston RC. Twenty-

five-years after Charnely total hip arthroplasty in patients less than fifty years old: A concise

follow-up of a previous report. Journal of Bone and Joint Surgery–American Volume. June

2003;85–A(6):1066–1072.

100.[101.] Keener JD, Callaghan JJ, Goetz DD, Pederson D, Sullivan P, Johnston RC. Long-term

function after charnley total hip arthroplasty. Clinical Orthopaedics & Related Research. 2003

Dec;(417):148–156.

101.[102.] Nadzadi ME, Pedersen DR, Yack HJ, Callaghan JJ, Brown TD. Kinematics, kinetics, and

finite element analysis of commonplace maneuvers at risk for total hip dislocation. Journal of

Biomechanics. 2003 Apr;36(4):577–91.102.[103.] Callaghan JJ, Brown TD, Pedersen DR, Johnston RC. Larger Femoral Heads: A Triumph

of hope over reason! Journal of Arthroplasty 2003, 18(3)(Suppl 1):82–84.

103.[104.] Callaghan JJ, Pedersen DR, Johnston RC, Brown TD. Clinical biomechanics of wear in

total hip arthroplasty. Iowa Orthop Journal. 2003;23:1–12. PMCID1888402.

104.[105.] Callaghan JJ, Schroeder B, Morcuende JA, Goetz DD, Sullivan PM, Pedersen DR,

Johnston RC. Cementless acetabular fixation in THR perfomred for CDH: Is bone grafting

necessary: Journal of Arthroplasty. 2004 Feb;19(2):262.

105.[106.] Gaffey JL, Callaghan JJ, Pedersen DR, Goetz DD, Sullivan PM, Johnston RC.

Cementless acetabular fixation at fifteen years: A comparison with the same surgeon’s results

following acetabular fixation with cement. Journal of Bone and Joint Surgery–American Volume.

2004 Feb; 86-A (2):257–261.

106.[107.] Callaghan JJ, Templeton JE, Liu SS, Pedersen DR, Goetz DD, Sullivan PM, Johnston RC.

Results of Charnely total hip arthroplasty at a minimum of thirty years. A concise follow-up of a

previous report. Journal of Bone and Joint Surgery. 2004 Apr;86-A(4):690–695.22


107.[108.] Pedersen DR, Lamb CA, Dolan LA, Ralston HM, Weinstein SL, Morcuende JA.

Radiographic measurements in developmental dysplasia of the hip: Reliability and validity of a

digitizing program. Journal of Pediatric Orthopedics. 2004 Mar/Apr;24(2):156–160.

108.[109.] Klapach AS, Callaghan JJ, Miller KA, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC.

Total hip arthroplasty with cement and without acetabular bone graft for severe hip dysplasia. A

concise follow-up, at a minimum of twenty years, of a previous report. Journal of Bone and Joint

Surgery–American Volume. 2005 Feb;87-A(2):280–5.

109.[110.] Stewart KJ, Pedersen DR, Callaghan JJ, Brown TD. Implementing capsule representation

in a total hip dislocation finite element model. Iowa Orthopaedic Journal. 2004 Jun;24:1–8.

PMCID1888426.

110.[111.] Pedersen DR, Callaghan JJ, Brown TD. Activity-dependence of the “safe zone” for

impingement versus dislocation avoidance. Medical Engineering & Physics. 2005

May;27(4):323–328.

111.[112.] Goetz JE, Chung YY, Zimmerman DL, Pedersen DR, Robinson DA, Conzemius MG,

Brown TD. Steroid-induced versus cryoinsult-induced femoral head osteonecrosis: Statistical

measurement of histologic abnormality focalization. Journal of Musculoskeletal Research. 2005

Dec;9(4)161–172.

112.[113.] Lundberg HJ, Stewart KJ, Pedersen DR, Callaghan JJ, Brown TD. Problematic sites of

third body embedment in polyethylene for total hip wear acceleration. Journal of Biomechanics.

2006; 39(7):1208–1216.

113.[114.] McKinley TO, Rudert MJ, Koos DC, Pedersen DR, Baer TE, Tochigi Y, Brown TD. Contact

stress transients during functional loading of ankle step-off incongruities. Journal of

Biomechanics. 2006;39(5):885–893.

114.[115.] McKinley TO, Rudert MJ, Koos DC, Pedersen DR, Baer TE, Tochigi Y, Brown TD. Stance-

phase aggregate contact stress and contact stress gradient changes resulting from articular

surface stepoffs in human cadaveric ankles. Osteoarthritis and Cartilage, 2006 Feb;14(2):131–

8.

115.[116.] Tochigi Y, Suh JS, Amendola A, Pedersen DR, Saltzman CL. Ankle alignment on lateral

radiographs: Part 1: Sensitivity of measures to perturbations of ankle positioning. Foot and

Ankle International. 2006;27:82–87. PMCID2274959.

116.[117.] Bouchard SM, Stewart KJ, Pedersen DR, Callaghan JJ, Brown TD. Design factors

influencing performance of constrained acetabular liners: Finite element characterization.

Journal of Biomechanics. 2005;39(5):885–893.23


117.[118.] Anderson DD, Goldsworthy JK, Shivanna K, Grosland NM, Pedersen DR, Thomas TP,

Tochigi Y, Marsh JL, Brown TD: Intra-articular contact stress distributions at the ankle

throughout stance phase—Patient-specific finite element analysis as a metric of degeneration

propensity. Biomechanics and Modeling in Mechanobiology. 2006;5(2–3):82–89.

PMCID2194754.

118.[119.] Kallemeyn NA, Grosland NM, Pedersen DR, Martin JA, Brown TD. Loading and boundary

condition influences in a poroelastic finite element model of cartilage stresses in a triaxial

compression bioreactor. Iowa Orthopaedic Journal. 2006;26:5–16. PMCID1888601.

119.[120.] Buckwalter AE, Callaghan JJ, Liu SS, Pedersen DR, Goetz DD, Sullivan PM, Leinen JA,

Johnston RC. Results of Charnley total hip arthroplasty with use of improved femoral

cementing techniques at a minimum of twenty-five years: A concise follow-up of a previous

report. Journal of Bone and Joint Surgery–American Volume. 2006 Jul;88(7):1481–5.

120.[121.] Lundberg HJ, Stewart KJ, Pedersen DR, Callaghan JJ, Brown TD. Non-identical and

outlier duty cycles as factors accelerating UHMWPE wear in THA: A finite element exploration.

Journal of Orthopaedic Research. 2007 Jan;25(1)30–43.

121.[122.] McKinley TO, Rudert MJ, Tochigi Y, Pedersen DR, Koos DC, Baer TE, Brown TD.

Incongruity-dependent changes of contact stress rates in human cadaveric ankles. Journal of

Orthopaedic Trauma. 2006 Nov/Dec;20(10):732–738.

122.[123.] McKinley TO, Rudert MJ, Tochigi Y, Pedersen DR, Koos DC, Baer TE, Brown TD.

Cambios dependientes de incongruencia de grados de estres de contacto en tobillos

cadavericos humanos. Journal of Orthopaedic Trauma. 2006 Nov/Dec;20(10):747

123.[124.] Russell ME, Shivanna KH, Grosland NM, Pedersen DR. Cartilage contact pressure

elevations in dysplastic hips: A chronic overload model. Journal of Orthopaedic Surgery and

Research 2006:1(1):79–87 (Mandarin) and 169–177 (English). PMC1636031.

124.[125.] Lundberg HJ, Pedersen DR, Baer TE, Muste MV, Callaghan JJ, Brown TD. Effects of

implant design parameters on fluid convection, potentiating 3rd body debris ingress into the

bearing surface during THA impingement/subluxation. Journal of Biomechanics

2007;40(8):1676–1685. PMCID1945119.

125.[126.] Yehyawi TM, Callaghan JJ, Pedersen DR, O'Rourke MR, Liu SS. Variances in sagittal

femoral shaft bowing in patients undergoing TKA. Clinical Orthopaedics & Related Research.

2007 Nov;464:99–104.

126.[127.] Beecher BR, Martin JA, Pedersen DR, Heiner AD, Buckwalter JA. Antioxidants block cyclic

loading induced chondrocyte death. Iowa Orthopaedic Journal. 2007;27:1-8. PMCID2150661.24


127.[128.] Kallemeyn NA, Grosland NM, Magnotta VA, Martin JA, Pedersen DR. Arthroscopic lens

distortion correction applied to dynamic cartilage loading. Iowa Orthopaedic Journal.

2007;27:52-57. PMCID2150644.

128.[129.] Lundberg HJ, Liu SS, Callaghan JJ, Pedersen DR, O’Rourke MR, Goetz DD, Vittetoe D,

John Clohisy JC, Brown TD. Association of 3rd body embedment with rim damage in retrieved

acetabular liners. Clinical Orthopaedics & Related Research. 2007 Dec;465:133–9.

129.[130.] Thedens DR, Martin JA, Pedersen DR. (2007) Magnetic resonance imaging of cartilage:

New imaging and clinical approaches. In Buckwalter JA, Lotz M, Stoltz JF (Eds.) OA,

Inflammation and Degradation: A Continuum, Volume 70: Biomedical and Health Research, pp.

239–253. Fairfax, VA: IOS Press.

130.[131.] Shivanna K, Grosland N, Russell M, Pedersen D. Diarthrodial joint contact models: Finite

element model development of the human hip. Engineering with Computers. 2008;24(2):155–

163.

131.[132.] Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Baer TE, Brown TD.

Hip joint contact force in the emu (Dromaius novaehollandiae) during normal level walking.

Journal of Biomechanics. 2008;41(4):770–778. PMC2291359.

132.[133.] Heiner AD, Lundberg HJ, Baer TE, Pedersen DR, Callaghan JJ, Brown TD. Effects of

episodic subluxation events on third body ingress and embedment in the THA bearing surface.


133.[134.] Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Baer TE, Brown TD. The

apparent critical isotherm for cryoinsult-induced osteonecrotic lesions in emu femoral heads.


134.[135.] Tochigi Y, Rudert MJ, McKinley TO, Pedersen DR, Brown TD. Correlation of dynamic

cartilage contact stress aberrations with severity of instability in ankle incongruity. Journal of

Orthopaedic Research. 2008;26(9):1186–1193. PMC2964929.

135.[136.] Goreham-Voss CM, McCabe DJ, Rudert MJ, Martin JA, Pedersen DR, Brown TD. Spatial

correlations between local impact stress and cell death distributions. Osteoarthritis and

Cartilage. 2008;16(Supp 4):S65–66.

136.[137.] Rumery MP, Pedersen DR, Mendoza SA, Siepe C, Mayer HM, Brown TD. A pose-based

image analysis technique for measuring in vivo wear of total disc replacements. Computer

Methods in Biomechanics and Biomedical Engineering. Manuscript ID: GCMB-2007-0059.

(Accepted)

25


137.[138.] Moussavi-Harami SF, Pedersen DR, Martin JA, Hillis SL, Brown TD. Automated objective

scoring of histologically apparent cartilage degeneration using a custom image analysis

program. Journal of Orthopaedic Research. 2009;27(4):522–528. PMC Journal – In Process.

138.[139.] Brown TD, Lundberg HJ, Pedersen DR, Callaghan JJ. 2009 Nicolas Andry Award: Clinical

biomechanics of third body acceleration of total hip wear. Clinical Orthopaedics & Related

Research. 2009; 467(7):1885–1897. PMC2690766.

139.[140.] Altenburg AJ, Callaghan JJ, Yehyawi TM, Pedersen DR, Liu SS, Leinen JA, Dahl KA,

Goetz DD, Brown TD, Johnston RC. The effect of cable debris on acetabular construction

durability in cemented total hip arthroplasty at 19 to 20 year follow-up. Journal of Bone and Joint

Surgery Am. 2009 Jul;91(7):1664–1670. PMC2702252.

140.[141.] Hartmann JM, Rudert MJ, Pedersen DR, Baer TE, Goreham-Voss CM, Brown TD.

Compliance-dependent load allocation between sensing versus non-sensing portions of a

sheet-array contact stress sensor. Iowa Orthopaedic Journal. 2009;29:43–47. PMC2723691.

141.[142.] Kang L, Baer TE, Rudert MJ, Pedersen DR, Brown TD. Traveling-load calibration of grid-

array transient contact stress sensors. Journal of Biomechanics. 2010;43(11):2237–2240.

PMC2914204.

142.[143.] Ramakrishnan P, Hecht BA, Pedersen DR, Lavery MR, Maynard J, Buckwalter JA, Martin

JA. Oxidant conditioning protects cartilage from mechanically induced damage. Journal of

Orthopaedic Research. 2010 Jul;28(7):914–20.

143.[144.] Debevec H, Pedersen DR, Iglič A, Daniel M. One-legged stance as a representative static

body position for calculation of hip contact stress distribution in clinical studies. Journal of

Applied Biomechanics. 2010 26(4):522–525.

144.[145.] Elkins JM, O’Brien MK, Stroud NJ, Pedersen DR, Callaghan JJ, Brown TD. Hard-on-hard

total hip impingement causes extreme contact stress concentrations. Clinical Orthopaedics &

Related Research. 2011;469:454–463.

145.[146.] Goetz JE, Robinson DA, Pedersen DR, Conzemius MG, Brown TD. Cryoinsult parameter

effects on the histologically-apparent volume of experimentally-induced osteonecroticlesions.

Journal of Orthopaedic Research. 2011;29(6):931–937. PMC3082588.

146.[147.] Pedersen DR, Klocke NF, Thedens DR, Martin JA, Williams GN, Amendola A. Integrating

cartilage-specific T1rho MRI into knee clinic diagnostic imaging. Iowa Orthopaedic Journal.

2011;31:99–109.

147.[148.] Elkins JM, Stroud NJ, Rudert MJ, Tochigi Y, Pedersen DR, Ellis BJ, Callaghan JJ, Weiss

JA, Brown TD. The capsule’s contribution to total hip construct stability—A finite element analysis. 26


Journal of Orthopaedic Research. William H. Harris Award Winner. 2011; 29(11) 1642-1648.

NIHMS287355.

148.[149.] Ramakrishnan PS, Pedersen DR, Stroud NJ, McCabe DJ, Martin JA. Repeated

measurement of mechanical properties in viable osteochondral explants following a single blunt

impact injury. Proceedings of the Institution of Mechanical Engineers. Part H. Journal of

Engineering in Medicine. 2011 (E-pub) DOI: 10.1177/0954411911413063

149.[150.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Fracture propagation propensity of

ceramic liners during impingement—A finite element exploration. Journal of Arthroplasty. 2012;

27(4): 520-526. (PMID 21855277).

150.[151.] Elkins JM, Kruger KM, Pedersen DR, Callaghan JJ, Brown TD. Edge-loading severity as a

function of cup lip radius in metal-on-metal total hips—A finite element analysis. Journal of

Orthopaedic Research 2012 30(2) 169-177 (PMID 21812025).

151.[152.] Ingvild Øvstebø Engesæter, Lene Bjerke Laborie, Trude Gundersen Lehmann, Francesco

Sera, Jonas Fevang, Douglas Pedersen, José Morcuende, Stein Atle Lie, Lars Birger Engesæter,

Karen Rosendahl. Radiological findings for hip dysplasia at skeletal maturity. Validation of digital

and manual measurement techniques. Skeletal Radiology 2012 41(7):775-785.

152.[153.] Noelle F. Klocke. Characterizing Cartilage-Specific T1 MRI for Clinical Translation and

Application. Master’s Thesis in Biomedical Engineering, the University of Iowa. D. R. Pedersen

and T. D. Brown, Advisors. July 2011.

153.[154.] Jacob M. Elkins. Biomechanics of Failure Modalities in Total Hip Arthroplasty. PhD

Dissertation in Biomedical Engineering, the University of Iowa MSTP. T.D. Brown, J.J. Callaghan,

D.R. Pedersen, Advisors. January 2012.

154.[155.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Bone-on-Bone vs. Implant

Impingement in Large Femoral Diameter Total Hips. Iowa Orthopaedic Journal 2012; 32:17-21

155.[156.] Elkins JM, Pedersen DR, Yack HJ, Callaghan JJ, Brown TD. Morbid Obesity May Increase

Dislocation in Total Hip Patients: A Biomechanical Analysis. Clinical Orthopaedics and Related

Research 2012; Aug 21 [Epub ahead of print]. PMID: 22907474

156.[157.] Annunziato A, Klocke NF, Thedens DR, Williams GL, Martin JA, Pedersen DR.

Observations of Early Injury Response after ACL-Rupture Using and Affecting Concurrent Three-

Sequence Quantitative MRI. ICRS Special Focus: Importance of advanced MR imaging

techniques in cartilage repair evaluations, 15:35-36, 2012.

27


157.[158.] Teusink MJ, Callaghan JJ, Warth LC, Goetz DD, Pedersen DR, Johnston RC. Cementless

Acetabular Fixation in Patients 50 Years and Younger at 10 to 18 Years of Follow-up. The Journal

of Arthroplasty, 2012;(27)7:1316-1323. doi:10.1016/j.arth.2011.10.020

158.[159.] Stefl MD, Callaghan JJ, Liu SS, Pedersen DR, Goetz DD, Johnston RC. Primary

Cementless Acetabular Fixation at a Minimum of Twenty Years of Follow-up. A concise Update of

a Previous Report. Journal of Bone and Joint Surgery 2012;94:234-9.

159.[160.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Do Obesity and/or Stripe Wear

Increase Ceramic Liner Fracture Risk? An XFEM Analysis. 2012 Hip Society Proceedings (Dr.

Stuart Goodman, Guest Editor): Clinical Orthopaedics and Related Research. 2012 (CORR-D-12-

00212R1 in-press)

160.[161.] Klocke NF, Annunziato A, Thedens DR, Williams GL, Luty CM, Martin JA, Pedersen DR.

Comparison of T1, dGEMRIC, and Quantitative T2 MRI in Preoperative ACL Rupture Patients.

Academic Radiology 2013; 20:99-107.

161.[162.] Rudert MJ, Ellis BJ, Henak C, Pedersen DR, Weiss JA, Brown TD. (Design Innovation

Paper), A New Sensor for Measurement of Dynamic Contact Stress in the Hip. Journal of

Biomechanical Engineering (Accepted 12/12/12 with minor revisions).

162.[163.] Brown TD, Elkins JM, Pedersen DR, Callaghan JJ. Impingement in Total Hip Arthroplasty:

Mechanisms and Consequences. The 2012 Orthopaedic Research Education Foundation OREF Clinical Research Award. JOR 2012 (in preparation).

163.[164.] Pedersen DR, Goetz JE, Kurriger GL, Martin JA. Comparative digital cartilage histology

for human and common osteoarthritis models. Orthopedic Research and Reviews, 2013;5:13-20.

PMC3899351

164.[165.] Brown TD, Elkins JM, Pedersen DR, Callaghan JJ. Impingement and dislocation in total

hip arthroplasty: mechanisms and consequences. Iowa Orthop J. 2014;34:1-15. PMC4127709

165.[166.] Papalia R, Torre G, Vasta S, Zampogna B, Pedersen DR, Denaro V, Amendola A. Bone

bruises in anterior cruciate ligament injured knee and long-term outcomes. A review of the

evidence. J Sports Med. 2015 Feb 18;6:37-48. PMC4340462

28


166.[167.] Nguyen MP, Pedersen DR, Gao Y, Saltzman CL, Amendola A. J Bone Joint Surg Am.

2015 Apr 1;97(7):590-6.

Abstracts[1.] Crowninshield RD, Brand RA, Johnston RC, Pedersen DR. A Comparison of Steel and Titanium

Femoral Components in Total Hip Arthroplasty. Paper presented at: Transactions of the 26th

Annual Meeting of the Orthopaedic Research Society; February, 1980; Atlanta, Georgia.

1.[2.] Crowninshield RD, Brand RA, Johnston RC, Pedersen DR. A Comparison of Steel and

Titanium Femoral Components in Total Hip Arthroplasty. Paper presented at: Proceedings of

the Fifth Annual College of Medicine Research Day; April 17–18, 1980; The University of Iowa

Hospitals, Iowa City, Iowa.

2.[3.] Crowninshield RD, Brand RA, Johnston RC, Pedersen DR. An Analysis of Femoral Prosthesis

Design - The Effects on Proximal Femur Loading. Paper presented at: Proceedings of the Ninth

Open Scientific Meeting of the Hip Society; February, 1981; Las Vegas, Nevada.

3.[4.] Pedersen DR, Crowninshield RD, Brand RA. An Analysis of Acetabular Component Design.

Paper presented at: Transactions of the 27th Annual Meeting of the Orthopaedic Research

Society; February, 1981; Las Vegas, Nevada.

4.[5.] Pedersen DR, Crowninshield RD, Brand RA. An Analysis of Acetabular Component Design.

Paper presented at: Proceedings of the Sixth Annual College of Medicine Research Day; April,

1981; The University of Iowa, Iowa City, Iowa.

5.[6.] Brand RA, Crowninshield RD, Pedersen DR. Architecture of the Periacetabular Trabecular

Bone. Paper presented at: Transactions of the 28th Annual Meeting of the Orthopaedic

Research Society; January 19–21, 1982; New Orleans, Louisiana.

6.[7.] Brand RA, Crowninshield RD, Pedersen DR, Gabel RH. Hip Forces in Activities of Daily Living.

Paper presented at: Proceedings of the Seventh Annual College of Medicine Research Day;

April, 1982; The University of Iowa, Iowa City, Iowa.

7.[8.] Crowninshield RD, Murase K, Pedersen DR. An Analysis of Tibial Component Design in Total

Knee Arthroplasty. Paper presented at: Transactions of the 28th Annual Meeting of the

Orthopaedic Research Society; January 19–21, 1982; New Orleans, Louisiana.

8.[9.] Murase K, Tsukahara S, Saito S, Crowninshield RD, Pedersen DR. A Finite Element Analysis

of Tibial Component Design in Total Knee Arthroplasty. Paper presented at: Proceedings of the

8th International Congress of Biomechanics, 1982; Nagoya, Japan.

29


9.[10.] Blair WF, Gabel RH, Pedersen DR, Greene ER. A Method for Programmed, Rapid Range

Control Advance with the 20 MHz PUDVM. Paper presented at: Proceedings of the Rocky

Mountain Bioengineering Symposium; April, 1983; Rochester, Minnesota.

10.[11.] Blair WF, Pedersen DR. The 20MHz Pulsed Ultrasonic Doppler Velocity Meter: A Method for

Assessing Flow in Small Vessels. Paper presented at: Proceedings of the Seventh Annual

Conference of the American Society of Biomechanics; September 28–30, 1983; Rochester,

Minnesota.

11.[12.] Blair WF, Pedersen DR, Joos K, Bondi D. A Hemodynamic Comparison of Interrupted and

Continuous Microarteriorraphy Techniques. Paper presented at: Proceedings of the American

Association of Hand Surgery; October 30, 1983; Dallas, Texas.

12.[13.] Brand RA, van Krieken FM, Pedersen DR, Crowninshield RD. Prediction of Muscle and Joint

Loads After Segmental Femur Replacement for Osteosarcoma. Paper presented at:

Proceedings of the Eighth Annual College of Medicine Research Day; April 21–22, 1983;

University of Iowa, Iowa City, Iowa.

13.[14.] Crowninshield RD, Pedersen DR, Brand RA, Johnston RC. Analytical Support for Acetabular

Component Metal Backing. Paper presented at: Proceedings of the Eleventh Open Scientific

Meeting of the Hip Society; March 9, 1983; Anaheim, California.

14.[15.] Crowninshield RD, Johnston RC, Brand RA, Pedersen DR, Wilson MA, Tolbert JR. An

Engineering Analysis of Total Hip Component Design. Paper presented at: Proceedings of the

50th Annual Meeting of the American Academy of Orthopaedic Surgeons; March 10–15, 1983;

Anaheim, California.

15.[16.] Pedersen DR, Brand RA. Computer Modeling of Proximal Femur Osteotomies. Paper

presented at: Proceedings of the Seventh Annual Conference of the American Society of

Biomechanics; September 28–30, 1983; Rochester, Minnesota.

16.[17.] van Krieken FM, Pedersen DR, Brand RA, Crowninshield RD. Hip and Knee Muscle and

Joint Force Predictions in Simulated Tumor Resections. Paper presented at: Transactions of the

29th Annual Meeting of the Orthopaedic Research Society; March 8–10, 1983; Anaheim,

California.

17.[18.] Brand RA, Pedersen DR. Computer Modeling of Surgery and a Consideration of the

Mechanical Effects of Proximal Femoral Osteotomies. Paper presented at: Proceedings of the

Twelfth Open Scientific Meeting of The Hip Society; February, 1984; Atlanta, Georgia.

30


18.[19.] Brand RA, Pedersen DR. Computer Modeling of Proximal Femoral Osteotomies. Paper

presented at: Proceedings of the Ninth Annual College of Medicine Research Day; April 26–27,

1984; The University of Iowa, Iowa City, Iowa.

19.[20.] Brand RA, Pedersen DR. Computer Modeling of Surgery and a Consideration of the

Mechanical Effects of Proximal Femoral Osteotomies. Paper presented at: Proceedings of the

Fourth Meeting of the European Society of Biomechanics; September 23–26, 1984; Davos,

Switzerland.

20.[21.] Brown TD, Gabel RH, Pedersen DR, Bell LD, Blair WF. Some Characteristics of Laminar

Flow Velocity Spectra Detected by a 20 MHz Pulsed Ultrasound Doppler. Paper presented at:

Proceedings of the Eighth Annual Meeting of the American Society of Biomechanics; October

3–5, 1984; Tucson, Arizona.

21.[22.] Pedersen DR, Brand RA. Changes in Three-Dimensional Muscle Geometry as a Result of

Femoral Intertrochanteric Osteotomies. Paper presented at: Transactions of the 30th Annual

Meeting of the Orthopaedic Research Society; February 6–9, 1984; Atlanta, Georgia.

22.[23.] Pedersen DR, Brown TD, Singerman RJ. Quantitation of Fuji Prescale Film Pressures Using

Digital Image Scanning. Paper presented at: Proceedings of the Eighth Annual Meeting of the

American Society of Biomechanics; October 3–5, 1984; Tucson, Arizona.

23.[24.] Brown TD, Gabel RH, Bell LD, Pedersen DR, Blair WF. Performance Characteristics of a 20

MHz Pulsed Ultrasound Doppler Velocimeter for Studies of Microvascular Hemodynamics.

Paper presented at: Proceedings of the American Society of Mechanical Engineers

Biomechanics Symposium; June 24–26, 1985; Albuquerque, New Mexico.

24.[25.] Brown TD, Pedersen DR, Radin EL, Rose RM. Mechanical Consequences of Fibrous

Membrane Formation at the Bone/Cement Interface in Proximal Femoral Arthroplasty. Paper

presented at: Proceedings of the Ninth Annual Meeting of the American Society of

Biomechanics; October 2–4, 1985; Ann Arbor, Michigan.

25.[26.] Callaghan JJ, Brand RA, Pedersen DR. Hip Arthrodesis. A Long-Term Follow-Up. Paper

presented at: Proceedings of the 52nd Annual Meeting of the American Academy of

Orthopaedic Surgeons; January 26, 1985; Las Vegas, Nevada.

26.[27.] Singerman RJ, Pedersen DR, Brown TD. Quantitation of Fuji Prescale Film Pressures Using

Digital Image Scanning. Paper presented at: Proceedings of the College of Medicine Research

Day X; May 9–10, 1985; The University of Iowa , Iowa City, Iowa.

27.[28.] Brown TD, Pedersen DR, Radin EL, Rose RM. Global Mechanical Consequences of

Bone/Cement Interface Degradation in Proximal Femoral Arthroplasty. Paper presented at: 31


Transactions of the 32nd Annual Meeting of the Orthopaedic Research Society; February 17–

20, 1986; New Orleans, Louisiana.

28.[29.] Brown TD, Pedersen DR, Singerman RJ. Load Transmission Through the Proximal Femur in

Early Childhood. Paper presented at: Transactions of the 32nd Annual Meeting of the

Orthopaedic Research Society; February 17–20, 1986; New Orleans, Louisiana.

29.[30.] Brown TD, Pedersen DR, Singerman RJ. Load Transmission Through the Proximal Femur in

Early Childhood. Paper presented at: Orthopaedic Transactions, 1986.

30.[31.] Pedersen DR, Cheng CK, Brand RA. Muscle Force Estimations Using Nonlinear

Programming. Paper presented at: Transactions of the 32nd Annual Meeting of the Orthopaedic

Research Society; February 17–20, 1986; New Orleans, Louisiana.

31.[32.] Pedersen DR, Anderson DD, Singerman RJ, Brown TD. Prescale Film Pressure

Quantification. Paper presented at: Proceedings of the 98th Session of the Iowa Academy of

Science; April 25–26, 1986; Wartburg College, Waverly, Iowa.

32.[33.] Vrahas MS, Brown TD, Andrews JG, Brand RA, Pedersen DR. In-vivo Measurements of

Passive Moments of the Human Hip. Paper presented at: Proceedings of the Combined

meeting of the North American Congress on Biomechanics, the Tenth Annual Conference of

The American Society of Biomechanics, and the Fourth Biannual Conference of the Canadian

Society for Biomechanics; August 25–27, 1986; Montreal, Quebec, Canada.

33.[34.] Bell AL, Brand RA, Pedersen DR. Prediction of Hip Joint Center Location from External

Landmarks. Paper presented at: Proceedings of the Eleventh Annual Conference of the

American Society Biomechanics; September, 1987; University of California at Davis.

34.[35.] Brown TD, Anderson DD, Nepola JV, Singerman RJ, Pedersen DR, Brand RA. Contact

Stress Aberrations Following Imprecise Reduction of Intra-Articular Fractures. Paper presented

at: Transactions of the 33rd Annual Meeting of the Orthopaedic Research Society; January 19–

22, 1987; San Francisco, California.

35.[36.] Feinberg JH, Pedersen DR, Brand RA. A Model to Predict the Muscular Anatomy of the

Pelvic Limbs of the Dog. Paper presented at: Proceedings of the Eleventh Annual Conference

of the American Society Biomechanics; September, 1987; University of California at Davis.

36.[37.] Vrahas MS, Brown TD, Andrews JG, Brand RA, Pedersen DR. In Vivo Passive Moment

Measurements in the Human Hip. Paper presented at: Transactions of the 33rd Annual Meeting

of the Orthopaedic Research Society; January 19–22, 1987; San Francisco, California.

32


37.[38.] Vrahas MS, Brown TD, Andrews JG, Brand RA, Pedersen DR. In Vivo Passive Moment

Measurements in the Human Hip. Paper presented at: Proceedings of the Twelfth Annual

College of Medicine Research Day; April 23–24, 1987; The University of Iowa, Iowa City, Iowa.


Landmarks. Paper presented at: Transactions of the 34th Annual Meeting of the Orthopaedic

Research Society; February 1–4, 1988; Atlanta, Georgia.

39.[40.] Brown TD, Rubin CT, Brand RA, Pedersen DR, Gray ML. Stress/Strain Field Correlations

with New Periosteal Bone Deposition Patterns in the Functionally Isolated Turkey Ulna. Paper

presented at: Proceedings of the Sixth Meeting of the Society of Biomechanics; September 11–

15, 1988; University of Bristol, United Kingdom.


Pelvic Limbs of the Dog. Paper presented at: Transactions of the 34th Annual Meeting of the

Orthopaedic Research Society; February 1–4, 1988; Atlanta, Georgia.


Pelvic Limbs of the Dog. Paper presented at: Proceedings of the College of Medicine Research

Day XIII; April, 1988; The University of Iowa, Iowa City, Iowa.

42.[43.] Pedersen DR, Brown TD, Gray ML, Rubin CT, Brand RA. A Finite Element Analysis of Strain

Distributions in the Functionally Isolated Turkey Ulna. Paper presented at: Transactions of the

34th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1988; Atlanta,

Georgia.

43.[44.] Pedersen DR, Feinberg JH, Brand RA. Modeling of Canine Pelvic Limb Muscular Anatomy.

Paper presented at: Proceedings of the 100th Meeting of the Iowa Academy of Sciences; April,

1988; Ames, Iowa.


Landmarks. Paper presented at: Proceedings of the College of Medicine Research Day XIII;

April, 19, 1989; The University of Iowa, Iowa City, Iowa.

45.[46.] Bell AL, Pedersen DR, Brand RA. A Comparison of the Accuracy of Several Hip Joint Center

Location Prediction Methods. Paper presented at: Transactions of the 35th Annual Meeting of

the Orthopaedic Research Society; February 6–9, 1989; Las Vegas, Nevada.

46.[47.] Brand RA, Pedersen DR, Davy DT, Heiple KG, Goldberg VM. Comparison of Hip Joint Force

Calculations and Measurements in the Same Patient. Paper presented at: Transactions of the

35th Annual Meeting of the Orthopaedic Research Society; February 6–9, 1989; Las Vegas,

Nevada.33


47.[48.] Brand RA, Pedersen DR, Davy DT, Heiple KG, Goldberg VM. Hip Force Calculations and

Measurements in the Same Patient. Paper presented at: Proceedings of the 13th Annual

Meeting of the American Society of Biomechanics; August 23–25, 1989; University of Vermont,

Burlington, Vermont.

48.[49.] Pedersen DR, Brand RA. Knee Joint Moment Assumptions Affect Hip Joint Force

Calculations. Paper presented at: Proceedings of the 1989 Winter Annual Meeting of the

American Society of Mechanical Engineers; December 10–15, 1989; San Francisco, California.

49.[50.] Pierotti SE, Pedersen DR, Brand RA. Are Leg EMG Profiles Symmetrical? Paper presented

at: Transactions of the 35th Annual Meeting of the Orthopaedic Research Society; February 6–

9, 1989; Las Vegas, Nevada.

50.[51.] Brand RA, Pedersen DR, Johnston RC. Hip Forces Resulting from Altered Hip Joint Center

Location - Revisited. Paper presented at: Proceedings of the The Hip Society 1990 Summer

Meeting; September 21–22, 1990; Scottsdale, Arizona.

51.[52.] Brown TD, Rubin CT, Brand RA, Pedersen DR. A Complementary Experimental/Analytic

Model to Explore Bone Remodeling. Paper presented at: Proceedings of the European Society

of Biomechanics, Biomechanics of Fracture Healing Workshop; July 12–14, 1990; Reisensurg

Castle and the University of Ulm, Ulm, West Germany.

52.[53.] Pedersen DR, Brown TD, Brand RA. Bone Ingrowth Stress Distributons Within a Novel

Prosthesis Anchorage Layer. Paper presented at: Transactions of the 36th Annual Meeting of

the Orthopaedic Research Society; February 5–8, 1990; New Orleans, Louisiana.

53.[54.] Pedersen DR, Brown TD, Brand RA. Two-Dimensional FEM Micromechanics of Bone

Ingrowing a Geometrically Regular Woven Titanium Net. Paper presented at: Proceedings of

the 102nd Session of the Iowa Academy of Science; April 20–21, 1990; Drake University, Des

Moines, Iowa.

54.[55.] Brown TD, Baker KJ, Pedersen DR, Brand RA. Structural Aspects of Femoral Head

Osteonecrosis. Paper presented at: Mechanics Computing in 1990's and Beyond, The

American Society of Civil Engineers Conference; May 20–22, 1991; Columbus, Ohio.

55.[56.] Brown TD, Pedersen DR, Baker KJ, Brand RA. Mechanical Effects of Coring and Bone

Grafting in Segmental Femoral Head Osteonecrosis. Paper presented at: Transactions of the

38th Annual Meeting of the Orthopaedic Research Society; February 17–20, 1992; Washington,

D.C.

56.[57.] Brown TD, Pedersen DR, Rubin CT, Brand RA. Mechanical Parameters Initiating Periosteal

Remodeling: A Combined Experimental and Analytical Approach. Paper presented at: 34


Proceedings of the 21st Annual Meeting and Exhibition of the American Association for Dental

Research; March 11–14, 1992; Boston, Massachusetts.

57.[58.] Brown TD, Pedersen DR, Baker KJ, Brand RA. Mechanical Consequences of Core Drilling

and Bone Grafting in Femoral Head Necrosis. Paper presented at: Proceedings of the 1992

Summer Meeting of the Hip Society; September 10–12, 1992; Indianapolis, Indiana.

58.[59.] Brown TD, Baker KJ, Pedersen DR, Brand RA. Biomechanics of Femoral Head Aseptic

Necrosis. Paper presented at: Proceedings of the 1992 International Symposium Biomedical

Engineering in the 21st Century; September 23–26, 1992; Taipei, Taiwan, R.O.C.

59.[60.] Pedersen DR, Brown TD, Banes AJ. Mechanical Behavior of a New Sustratum for Strain-

Mediated Cell Culture Experiments. Paper presented at: Proceedings of the Second North

American Congress on Biomechanics; August 24–28, 1992; Chicago, Illinois.

60.[61.] Adams DJ, Pedersen DR, Rudert MJ, Brand RA, Rubin CT, Brown TD. Geometric Symmetry

of the Turkey Ulna. Paper presented at: Proceedings of the 17th Annual Meeting of the

American Society of Biomechanics; October 21–23, 1993; Iowa City, Iowa.

61.[62.] Banes AJ, Brigman B, Tsuzaki M, et al. Role of Mechanical Challenge in Tendon Cell 2nd

Messenger Signalling and Mitogenic Response to Growth Factors. Paper presented at:

Proceedings of the International Society for Fracture Repair; May 12–15, 1993; Reisensburg

Castle, Germany.

62.[63.] Callaghan JJ, Pedersen DR, Olejniczak JP, Goetz DD, Johnston RC. Radiologic Wear

Measurements in Five Cohorts of Total Hip Replacements. Paper presented at: Proceedings of

the International Hip Society; August, 1993; Bankok, Thailand.

63.[64.] Callaghan JJ, Pedersen DR, Olejniczak JP, Goetz DD, Johnston RC. Radiologic Wear

Measurements in Five Cohorts of Total Hip Replacements. Paper presented at: Inaugural

Richard C. Johnston Lectureship in Orthopaedics; October, 1993; The University of Iowa, Iowa

City, Iowa.

64.[65.] Hasler EM, Herzog W, Ronsky JL, et al. Comparison Between Theoretical and Measured

Contact Forces in the Cat Patellofemoral Joint. Paper presented at: Proceedings of the XIVth

International Society of Biomechanics Congress; July 4–8, 1993; Paris, France.

65.[66.] MacKenzie JR, Callaghan JJ, Pedersen DR, Brown TD. Areas of Contact and Extent of Gaps

with Implantation of Oversized Acetabular Components in Total Hip Arthroplasty. Paper

presented at: Proceedings of the Twenty-First Open Scientific Meeting of The Hip Society;

February 21, 1993; San Francisco, California.

35


66.[67.] Meyer SA, Brown TD, Pedersen DR, Albright JP. The Effects of Patella Infera on

Patellofemoral Contact Stress. Paper presented at: Transactions of the 39th Annual Meeting of

the Orthopaedic Research Society; February 15–18, 1993; San Francisco, California.

67.[68.] Pedersen DR, Bottlang M, Brown TD, Banes AJ. Hyperelastic Constitutive Properties of

Polydimethyl Siloxane Cell Culture Membranes. Paper presented at: Proceedings of the 1993

ASME Winter Annual Meeting; November 28–December 3, 1993; New Orleans, Louisiana.

68.[69.] Adams DJ, Pedersen DR, Brown TD, Rubin CT, Brand RA. Formal Three-Dimensional

Contralateral (A)Symmetry of the Turkey Ulna. Paper presented at: Transactions of the 40th

Annual Meeting of the Orthopaedic Research Society; February 21–24, 1994; New Orleans,

Louisiana.

69.[70.] Adams DJ, Pedersen DR, Brown TD, Rubin CT, Brand RA. Formal Three-Dimensional

Contralateral (A)Symmetry of the Turkey Ulna. Paper presented at: Proceedings of the College

of Medicine Research Day XIX; April 14–15, 1994; The University of Iowa, Iowa City, Iowa.

70.[71.] Brown TD, Adams DJ, Spirt AA, Pedersen DR, Rubin CT, Brand RA. Toward Realistic Finite

Element Modelling of Adaptive Bone Remodelling in the Functionally Isolated Turkey Ulna.

Paper presented at: Department of Mechanical Engineering Lectures; October 25, 1994;

University of Pittsburgh, Pittsburgh, Pennsylvania.

71.[72.] Brown TD, Maxian TA, Pedersen DR, Callaghan JJ. Sliding-Distance-Coupled Finite Element

Polyethylene Wear Predictions in Total Hip Arthroplasty. Contact/Impact Biomechanics. Paper

presented at: Application of High Performance Computing in Engineering; October 21–22, 1994;

Pittsburgh Supercomputing Center, Pittsburgh, Pennsylvania.

72.[73.] Callaghan JJ, Pedersen DR, Olejniczak JP, Goetz DD, Johnston RC. Radiographic Wear

Measurements in Five Cohorts of Total Hip Replacements. Paper presented at: Transactions of

the 40th Annual Meeting of the Orthopaedic Research Society; February 21–24, 1994; New

Orleans, Louisiana.

73.[74.] Callaghan JJ, Kim YS, Brown TD, Pedersen DR, Johnston RC. Concerns and Improvements

with Cementless Metal Backed Acetabular Components. Paper presented at: Proceedings of

the Twenty-Second Open Scientific Meeting of The Hip Society; February 27, 1994; New

Orleans, Louisiana.

74.[75.] Hasler EM, Herzog W, Ronsky JL, Pedersen DR, Brown TD. Comparison of Theoretically

Calculated and Measured Patellofemoral Contact Forces in the Cat Knee Joint. Paper

presented at: Proceedings of the Canadian Orthopaedic Research Society; June 12–16, 1994;

Winnipeg, Manitoba, Canada.36


75.[76.] Kim YS, Brown TD, Pedersen DR, Callaghan JJ. Reamed Surface Topology and Component

Seating in Press-Fit Cementless Acetabular Fixation. Paper presented at: Proceedings of the

Second World Congress of Biomechanics; July 10–15, 1994; Amsterdam, The Netherlands.

76.[77.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Finite Element Modeling of Polyethylene

Stresses Using Industrial Tolerances for Femoral Head Sizes in Total Hip Replacements. Paper

presented at: Proceedings of the 18th Annual Meeting of the American Society of

Biomechanics; October 13–15, 1994; Columbus, Ohio.

77.[78.] Meyer SA, Brown TD, Pedersen DR, Albright JP. Influence of Patella Infera on

Patellofemoral Contact Stress. Paper presented at: Proceedings of the 61st Annual Meeting of

the American Academy of Orthopaedic Surgeons; February 24–March 1, 1994; New Orleans,

Louisiana.

78.[79.] Pedersen DR. Rate of In-Vivo Polyethylene Wear For Five Different Acetabular Components

Used Over A Five to Twenty-Two Year Period. Paper presented at: ASTM Committee F-4

workshop on Ultra High Molecular Polyethylene Materials; May, 1994; Montreal, Quebec,

Canada.

79.[80.] Pedersen DR, Callaghan JJ, Olejniczak JP, Johnston RC. In-Vivo Polyethylene Wear Rates

in Five Different Acetabular Components Used Over a Five to Twenty-Two Year Period. Paper

presented at: BioEngineering Division PhD Competition at 1994 International Mechanical

Engineering Congress and Exposition, ASME; November 6–11, 1994; Chicago, Illinois.

80.[81.] Ricos-Furio V, Pedersen DR, Brown TD, et al. Effects of Constitutive and Geometric

Modelling Simplifications on Stresses Computed in the Turkey Ulna. Paper presented at:

Proceedings of the 1994 International Mechanical Engineering Congress and Exposition,

BioEngineering Division; November 6–11, 1994; Chicago, Illinois.

81.[82.] Ronsky JL, Herzog W, Pedersen DR, Hasler EM, Brown TD. The Influence of Joint

Alignment, Joint Stability and Muscular Force on in-situ Patellofemoral Joint. Paper presented

at: Proceedings of the Canadian Orthopaedic Research Society; June 12–16, 1994; Winnipeg,

Manitoba, Canada.

82.[83.] Thornburg LE, Brown TD, Pedersen DR, Marsh JL, Brand RA. Acetabular Contact Pressures

in a Cadaveric Transverse Fracture Model. Paper presented at: Surgery of the Pelvis and

Acetabulum: The Second International Consensus; October 21–27, 1994; Pittsburgh,

Pennsylvania.

83.[84.] Kim YS, Brown TD, Pedersen DR, Callaghan JJ. Seating of Hemispherical vs Dual Radius

Components in Press-Fit Cementless Acetabular Fixation. Paper presented at: Transactions of 37


the 41st Annual Meeting of the Orthopaedic Research Society; February 13–16, 1995; Orlando,

Florida.

84.[85.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. A Sliding-Distance-Coupled Finite

Element Model for Polyethylene Wear in THA. Paper presented at: Transactions of the 41st

Annual Meeting of the Orthopaedic Research Society; February 13–16, 1995; Orlando, Florida.

85.[86.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Variability of Polyethylene Contact

Stress Due to Current Industrial Tolerances for Femoral Head Sizes. Paper presented at:

Transactions of the 41st Annual Meeting of the Orthopaedic Research Society; February 13–16,

1995; Orlando, Florida.

86.[87.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Variability of Polyethylene Contact

Stress Due to Current Industrial Tolerances for Femoral Head Sizes. Paper presented at:

Proceedings of the College of Medicine Research Day XIX; April 20–21, 1995; The University of

Iowa, Iowa City, Iowa.

87.[88.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Femoral Head Containment vs

Polyethylene Stress Concentration in THA Extended Lip Liners. Paper presented at:

Proceedings of the 1995 ASME Summer Meeting, 1995.

88.[89.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Adaptive Remeshing Behavior of a

Sliding-Distance-Coupled Contact Model of THA Wear. Paper presented at: Advances in

Bioengineering, ASME Winter Annual Meeting; November 12–17, 1995; San Francisco,

California.

89.[90.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Adaptive Remeshing Behavor of a

Sliding-Distance-Coupled Contact Model of THA Wear. Paper presented at: 1995 Advances in

Bioengineering, 1995.

90.[91.] Pedersen DR, Brown TD, Banes AJ. Nutrient Medium Reactive Inertial Stresses During Cell

Culture Mechanostimulus. Paper presented at: Transactions of the 41st Annual Meeting of the

Orthopaedic Research Society; February 13–16, 1995; Orlando, Florida.

91.[92.] Pedersen DR. Polyethylene Wear Rates for Five Different In Vivo Acetabular Components

Used ofer a Five to Twenty-two Year Period. Paper presented at: Transactions of the 41st

Annual Meeting of the Orthopaedic Research Society; February 13–16, 1995; Orlando, Florida.

92.[93.] Ronsky JL, Herzog W, Hasler EM, Brown TD, Pedersen DR. Contact Stress Distributions on

In-Situ Patellofemoral Joint Cartilage Contact. Paper presented at: Proceedings of the

Bioengineering Conference, ASME Summer Meeting, 1995.

38


93.[94.] Thornburg LE, Brown TD, Pedersen DR, Marsh JL, Brand RA. Three-Dimensional Contact

Stress Distributions for Acetabular Dome Fractures: A Re-Fracture Model to Address Site

Specificity. Paper presented at: Transactions of the 41st Annual Meeting of the Orthopaedic

Research Society; February 13–16, 1995; Orlando, Florida.

94.[95.] Brown TD, Pedersen DR, Maxian TA, Callaghan JJ. Determination of Directional

Counterface Motion as a Factor in THA Wear Simulation. Paper presented at: Transactions of

the 42nd Annual Meeting of the Orthopaedic Research Society, Workshop on Surface Damage

in Total Joint Replacements: Kinemetic Issues; February 18–22, 1996; Atlanta, Georgia.

95.[96.] Brown TD, Rudert MJ, Pedersen DR, Baker KJ, Sakamoto J, Brand RA. Considerations for

Computer Assisted Planning of Head-Preserving Surgery in Femoral Head Osteonecrosis.

Paper presented at: Proceedings of the 42nd Annual Meeting of the Orthopaedic Research

Society, Corporate Affiliates Workshop Computer-Guided Surgery and Robotics in

Orthopaedics; February 18–22, 1996; Atlanta, Georgia.

96.[97.] Brown TD, Pedersen DR, Maxian TA, Callaghan JJ. Determination of Directional

Counterface Motion as a Factor in THA Wear Simulation. Paper presented at: Transactions of

the 42nd Annual Meeting of the Orthopaedic Research Society, Workshop Surface Damage in

Total Joint Replacements: Kinematic Issues; February 18–22, 1996; Atlanta, Georgia.

97.[98.] Brown TD, Bottlang M, Pedersen DR, Banes AJ. Reactive Fluid Stresses Due to Nutrient

Medium Motion in a Major Class of Culture Mechanostimulus Systems. Paper presented at:

Proceedings of the 1996 Gordon Research Conference on Bioengineering and Orthopaedic

Sciences 9th Biennial Meeting; July 28–August 2, 1996; Proctor Academy, Andover, New

Hampshire.

98.[99.] Brown TD, Maxian TA, Pedersen DR, Callaghan JJ. A New Computer Model to Study Wear.

Paper presented at: Harvard Hip Course; October 2–5, 1996; Boston, Massechusetts.

99.[100.] Brown TD, Maxian TA, Pedersen DR, Callaghan JJ. Distance Traveled Versus Load Per

Unit Area. Paper presented at: Harvard Hip Course; October 2–5, 1996; Boston,

Massechusetts.

100.[101.] Brown TD, Thornburg LE, Pedersen DR, Marsh JL, Brand RA. Acetabular Contact

Pressures in a Cadaveric Fracture Model. Paper presented at: Surgery of the Pelvis and

Acetabulum: The Third International Consensus; October 5–11, 1996; Pittsburg, Pennsylvania.

101.[102.] Malkani A, Voor M, Rennirt G, Helfet D, Pedersen DR, Brown TD. Increased Peak Contact

Pressure Following Incongruent Reduction of Transverse Acetabular Fractures. A Cadaveric

39


Model. Paper presented at: Proceedings of the Orthopaedic Trauma Association 12th Annual

Meeting; September 27–29, 1996; Boston, Massechusetts.

102.[103.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Long-Term Polyethylene Wear Rates

for Total Hip Arthroplasty Determined by Adaptive Finite Element Modeling. Paper presented at:

Transactions of the 42nd Annual Meeting of the Orthopaedic Research Society; February 18–

22, 1996; Atlanta, Georgia.

103.[104.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Finite Element Modeling of

Dislocation Propensity in Total Hip Arthroplasty. Paper presented at: Transactions of the 42nd

Annual Meeting of the Orthopaedic Research Society; February 18–22, 1996; Atlanta, Georgia.

104.[105.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Femoral Head Containment in Total

Hip Arthroplasty. Standard VS Extended Lip Liners. Paper presented at: Transactions of the

42nd Annual Meeting of the Orthopaedic Research Society; February 18–22, 1996; Atlanta,

Georgia.

105.[106.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Three-Dimensional Sliding/Contact

Computational Simulation of Acetabular Wear in THA. Paper presented at: Proceedings of the

24th Open Scientific Meeting of The Hip Society/Second Combined Open Meeting of the Hip

Society and AAHKS; February 25, 1996; Atlanta, Georgia.

106.[107.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Long-Term Polyethylene Wear Rates

for Total Hip Arthroplasty Determined by Adaptive Finnite Element Modeling. Paper presented

at: Transactions of the 42nd Annual Meeting of the Orthopaedic Research Society, February

18–22, 1996, Atlanta, Georgia.

107.[108.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Finite Element Modeling of

Dislocation Propensity in Total Hip Arthroplasty. Paper presented at: Transactions of the 42nd

Annual Meeting of the Orthopaedic Research Society, February 18–22, 1996, Atlanta, Georgia.

108.[109.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Femoral Head Containment in Total

Hip Arthroplasty: Standard VS Extended Lip Linders. Paper presented at: Transactions of the

42nd Annual Meeting of the Orthopaedic Research Society, February 18–22, 1996, Atlanta,

Georgia.

109.[110.] Brown TD, Pedersen DR, Bottlang M, Banes AJ. Fluid-Structure Interaction as a

Determinant of Nutrient Medium Reactive Stress in Mechanically Stimulated Cultures. Paper

presented at: Transactions of the 43rd Annual Meeting of the Orthopaedic Research Society;

February 9–13, 1997; San Francisco, California.

40


110.[111.] Brown TD, Maxian TA, Pedersen DR, Callaghan JJ. Finite Element Studies of Bearing

Surface Wear in THA. Paper presented at: Proceedings of the Twenty-Fifth Open Scientific

Meeting of theHip Society and the Third Combined Open Meeting of the Hip Society and

AAHKS; February 16, 1997; San Francisco, California.

111.[112.] Brown TD, Nieman JC, Pedersen DR, Callaghan JJ. Finite Element Model of Third Body

Wear. Paper presented at: Proceedings of the The Hip Society Summer Meeting; September

11–13, 1997; New York, New York.

112.[113.] Emodi GJ, Takatsu T, Callaghan JJ, Brown T, D., Pedersen DR. The Effect of Surgically

Induced Parameters on Posterior Cruciate Ligament Function Following Total Knee

Arthrpolasty. Paper presented at: Transactions of the 43rd Annual Meeting of the Orthopaedic

Research Society; February 9–13, 1997; San Francisco, California.

113.[114.] Hop JD, Callaghan JJ, Olejniczak JP, Pedersen DR, Brown TD, Johnston RC. An In Vivo

Model of Third Body Wear Contribution of Cable Debris Generation to Accelerated Polyethylene

Wear and Acetabular Component Loosening. Paper presented at: Proceedings of the Twenty-

Fifth Open Scientific Meeting of the Hip Society and the Third Combined Open Meeting of the

Hip Society and AAHKS; February 16, 1997; San Francisco, California.

114.[115.] Malkani AL, Voor MJ, Rennirt GW, Helfet DL, Pedersen DR, Brown TD. Increased Peak

Contact Pressure Following Incongruent Reduction of Transverse Acetabular Fractures: A

Cadaveric Model. Paper presented at: Proceedings of the 64th Annual Meeting of the American

Academy of Orthopaedic Surgeons; February 13–17, 1997; San Francisco, California.

115.[116.] Maxian TA, Brown TD, McKellop H, Lu B, Pedersen DR, Callaghan JJ. Direct Physical

Validation of a Finite Element Model of Polyethylene Wear in Total Hip Arthroplasty. Paper

presented at: Transactions of the 43rd Annual Meeting of the Orthopaedic Research Society;


116.[117.] Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. A Computational Simulation of

Polyethylene Wear for Alternative Acetabular Component Fixation Modalities. Paper presented

at: Transactions of the 43rd Annual Meeting of the Orthopaedic Research Society; February 9–


117.[118.] Pedersen DR, Brown TD, Poggie RA. Finite Element Characterization of a Porous

Tantalum Material for Treatment of Avascular Necrosis. Paper presented at: Transactions of the

43rd Annual Meeting of the Orthopaedic Research Society; February 9–13, 1997; San

Francisco, California.

41


118.[119.] Pedersen DR, Brown TD, Hillis SA, Callaghan JJ. Prediction of Long-Term Polyethelene

Wear in THA, Based on Early Wear Measurements Made Using Digital Image Analysis. Paper

presented at: Transactions of the 43rd Annual meeting of the Orthopaedic Research Society;


119.[120.] Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. Experimental Validation of a

Computational Simulation of Dislocation in THA. Paper presented at: Proceedings of the

Twenty-First Annual Meeting of the American Society of Biomechanics; September 24–27,

1997; Clemson, South Carolina.

120.[121.] Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. Effects of Acetabular Component Lip

Design on Dislocation Resistance in THA. Paper presented at: Proceedings of the ASME

IMECE97 BED Meeting; November 16–21, 1997; Dallas, Texas.

121.[122.] Banes AJ, Tsuzaki M, Yang X, et al. Equibiaxial Strain Activates AP-1 and CRE

Transcription Factors but Not NF-KB or SSRE and Upregulates CX43 mRNA in Tendon Cells In

Vitro. Paper presented at: Transactions of the 44th Annual Meeting of the Orthopaedic

Research Society; March 16–19, 1998; New Orleans, Louisiana.

122.[123.] Banes AJ, Weinhold PS, Pedersen DR, et al. Cyclic Mechanical Load Increases DNA

Synthesis in Tendon Ex Vivo. Paper presented at: Proceedings of the First Southeastern US

Tissue Engineering Conference; June 5, 1998; North Carolina Biotechnology Institute, Research

Triangle Park, North Carolina.

123.[124.] Banes AJ, Tsuzaki M, Yang X, et al. Equibiaxial Strain and Norepinephrine Activate CRE

DNA Binding Protein and Expression of Connexin 43. Paper presented at: Proceedings of the

Third World Congress of Biomechanics; August 2–8, 1998; Hokkaido University, Sapporo,

Japan.

124.[125.] Brown TD, Pedersen DR, Vandenburgh HH. Nutrient Medium Reactive Stresses in a Cell

Culture Mechanostimulus Apparatus in which a Deformable Substratum is Tented by Vertical

Motions of an Underlying Central Post. Paper presented at: Transactions of the 44th Annual

Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, Louisiana.

125.[126.] Brown TD, Bottlang M, Pedersen DR, Banes AJ. Flow Field Visualization in Confirmation

of a Finite Element Model of Nutrient Medium Reactive Stress in a Pressure-Differential-Driven

Cell Culture Mechanostimulus System. Paper presented at: Transactions of the 44th Annual

Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, Louisiana.

126.[127.] Brown TD, Bottlang M, Pedersen DR, Banes AJ. Flow Field Visualization in Confirmation

of a Finite Element Model of Nutrient Medium Reactive Stress in a Pressure-Differential-Driven 42


Cell Culture Mechanostimulus System. Paper presented at: Proceedings of the College of

Medicine Research Week; April 13–16, 1998; The University of Iowa, Iowa City, Iowa.

127.[128.] Brown TD, Neiman JC, Pedersen DR, Callaghan JJ. Third Body Wear Simulations in Total

Hip Replacement. Paper presented at: Proceedings of the Fourth Biannual Johnston

Lectureship in Hip Reconstruction; October 16–17, 1998; Iowa City, Iowa.

128.[129.] Mavèiè B, Antoliè V, Brand RA, et al. Weight Bearing Area During Gait in Normal and

Dysplastic Human Hips. Paper presented at: Department of Orthopaedic Surgery Lectures;

March, 1998; University of Ljubljana, Ljubljana, Slovenia.

129.[130.] Nieman JC, Brown TD, Pedersen DR, Callaghan JJ. The Effects of Localized Regions of

Head Roughening on Variability of UHMWPE Wear in THA. Paper presented at: Transactions of

the 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New

Orleans, Louisiana.

130.[131.] Otto JK, Brown TD, Heiner AD, Pedersen DR, Callaghan JJ. Characterization of the

Dynamic Response of a Piezoresistive Contact Stress Sensor. Paper presented at:

Transactions of the 44th Annual Meeting of the Orthopaedic Research Society; March 16–19,

1998; New Orleans, Louisiana.

131.[132.] Pedersen DR, Brown TD, Hillis SL, Callaghan JJ. Early Prediction of Long-Term

Polyethylene Wear in Total Hip Arthroplasty. Paper presented at: Transactions of the 44th

Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans,

Louisiana.

132.[133.] Pedersen DR, Brown TD, Hillis SL, Callaghan JJ. The Influence of 3rd Body Debris on In

Vivo Polyethylene Wear in Total Hip Arthroplasty. Paper presented at: Transactions of the 44th


Louisiana.

133.[134.] Pedersen DR, Brown TD, Callaghan JJ, Hillis SL. Quantitative Estimates of Long-Term

Polyethylene Wear in Total Hip Arthroplasty, Based on Early Wear Measurements Made Using

Digital Image Analysis. Paper presented at: Proceedings of the 65th Annual Meeting of the

American Academy of Orthopaedic Surgeons; March 19–23, 1998; New Orleans, Louisiana.

134.[135.] Pedersen DR, Brown TD, Hillis SL, Callaghan JJ. The Influence of 3rd Body Debris on In

Vivo Polyethylene Wear in Total Hip Arthroplasty. Paper presented at: Proceedings of the

College of Medicine Research Week; April 13–16, 1998; The University of Iowa, Iowa City,

Iowa.

43


135.[136.] Pedersen DR, Brown TD, Callaghan JJ. 3rd Body Acceleration of In-Vivo UHMWPE Wear.

Paper presented at: Proceedings of the 1998 Annual Fall Meeting of the Biomedical

Engineering Society; October 10–13, 1998; Cleveland, Ohio.

136.[137.] Scifert CF, Brown TD, Pedersen DR, Heiner AD, Callaghan JJ. Direct Physical Validation

of a Finite Element Model of Total Hip Dislocation. Paper presented at: Transactions of the 44th


Louisiana.

137.[138.] Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. The Effects of Cup Tilt and

Anteversion on Dislocation Propensity in THA. Paper presented at: Transactions of the 44th


Louisiana.

138.[139.] Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. The Effects of Cup Tilt and

Anteversion on Dislocation Propensity in THA. Paper presented at: Proceedings of the College

of Medicine Research Week; April 13–16, 1998; University of Iowa, Iowa City, Iowa.

139.[140.] Brown TD, Gray ML, Pedersen DR. Nutrient Medium Reactive Stresses in a Cell Culture

Mechanostimulus System Delivering Homogeneous Equibiaxial Strains. Paper presented at:

Transactions of the 45th Annual Meeting of the Orthopaedic Research Society; February 1–4,

1999; Anaheim Calfornia.

140.[141.] Brown TD, Banes AJ, Bottlang M, Pedersen DR. Nutrient Depth and Waveform

Abruptness as Determinants of Reactive Fluid Stresses in a Vacuum-Driven Cell Culture

Mechanostimulus System. Paper presented at: Transactions of the 45th Annual Meeting of the

Orthopaedic Research Society; February 1–4, 1999; Anaheim Calfornia.

141.[142.] Brown TD, Pedersen DR, Heiner AD, Brand RA, Poggie RA, Christie MJ. Biomechanics of

Femoral Head Osteonecrosis: Natural History and Head-Preserving Surgical Management.

Paper presented at: Proceedings of the 66th Annual Meeting of the American Academy of

Orthopaedic Surgeons; February 4–8, 1999; Anaheim Calfornia.

142.[143.] Brown TD, Banes AJ, Bottlang M, Pedersen DR. Nutrient Depth and Waveform

Abruptness as Determinants of Reactive Fluid Stresses in a Vacuum-Driven Cell Culture

Mechanostimulus System. Paper presented at: Proceedings of the College of Medicine

Research Week; April 26–29, 1999; The University of Iowa, Iowa City Iowa.

143.[144.] Callaghan JJ, Albright JC, Goetz DD, Olejniczak JP, Johnston RC, Pedersen DR. At

Minimum 10 Year Follow-Up Do Cementless Acetabular Components Outperform Cemented

44


Acetabular Components. Paper presented at: Proceedings of the 66th Annual Meeting of the

American Academy of Orthopaedic Surgeons; February 4–8, 1999; Anaheim Calfornia.

144.[145.] Kralj-Igliè V, Igliè A, Brand RA, Pedersen DR. Contact Stress in the Hip Joint During Gait.

Paper presented at: Proceedings of the 10th SICOT Trainees Meeting; September 15–18,

1999; Portorož, Slovenia.

145.[146.] Poggie RA, Brown TD, Pedersen DR. Finite Element Analysis of Peri-Acetabular Stress of

Cemented, Metal-Backed, and Porous Tantalum Backed Acetabular Components. Paper

presented at: Transactions of the 45th Annual Meeting of the Orthopaedic Research Society;

February 1–4, 1999; Anaheim Calfornia.

146.[147.] Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. The Effect of Revision Cup Outer

Diameter on Impingement in Total Hip Arthroplasty. Paper presented at: Transactions of the

45th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1999; Anaheim,

Calfornia.

147.[148.] Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. Collar-Liner Hooking as a

Serendipitous Dislocation Check in Revision Total Hip Arthroplasty: A Finite Element

"Discovery". Paper presented at: Proceedings of the XVIIth International Society of

Biomechanics Congress; August 8–13, 1999; Calgary, Alberta, Canada.

148.[149.] Liu SS, Callaghan JJ, Goetz DD, Pedersen DR, Johnston RC. Durability of cemented

matte finish femoral components at 14 to 15 year follow-up. Paper presented at: Proceedings of

the 67th Annual Meeting of the American Academy of Orthopaedic Surgeons; March 12–15,

2000; Orlando, Florida.

149.[150.] Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Effects of cup anteversion/tilt

orientation on dislocation propensity for 22mm head-size total hip replacements. Paper

presented at: Proceedings of the Midwest Graduate Students' Biomechanics Symposium

(sponsored by the American Society of Biomechanics); April 1, 2000; Normal, Illinois.

150.[151.] Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Effects of cup anteversion/tilt

orientation on dislocation propensity for 22mm head-size total hip replacements. Paper

presented at: Graduate Student Senate Forum 2000, 2000; The University of Iowa, Iowa City,

Iowa.

151.[152.] Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Cup Anteversion/Tilt Effects on

Dislocation Propensity for Small Head Size Total Hip Replacements. Paper presented at:

Proceedings of the 24th Annual Meeting of the American Society of Biomechanics; July 19–22,

2000; University of Illinois at Chicago, Chicago, Illinois.45


152.[153.] Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Cup Anteversion/Tilt Effects on

Dislocation Propensity for Small-Head-Size Total Hip Replacements. Paper presented at:

Proceedings of the 24th Annual Meeting of the American Society of Biomechanics; July 19–22,

2000; Chicago, Illinois.

153.[154.] Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Comparison of Cup Anteversion and

Tilt Effects on Dislocation Propensity for Small-Head-Size Total Hip Replacements. Paper

presented at: Proceedings of the International Mechanical Engineering Congress & Exposition,

American Society of Mechanical Engineers, Bioengineering Division; November 9, 2000;

Orlando, Florida.

154.[155.] Pedersen DR, Heiner AD, Brown TD. Local Mechanics of Subchondral Plate Engagement

in Structural Grafting for Osteonecrosis. Paper presented at: Transactions of the 46th Annual

Meeting of the Orthopaedic Research Society; March 12–15, 2000; Orlando, Florida.

155.[156.] Pedersen DR, Callaghan JJ, Heiner AD, Brown TD. Chi-aquare Testing of THA Wear Rate

Distribution Normality. Paper presented at: Transactions of the 46th Annual Meeting of the

Orthopaedic Research Society; March 12–15, 2000; Orlando, Florida.

156.[157.] Pedersen DR, Callaghan JJ, Heiner AD, Brown TD. Chi-aquare Testing of THA Wear Rate

Distribution Normality. Paper presented at: Proceedings of the College of Medicine Research

Days XXV; April 25, 2000; The University of Iowa, Iowa City. Iowa.

157.[158.] Pedersen DR, Yack HJ, Wahi R, Callaghan JJ, Brown TD. Kinematics of Maneuvers

Commonly Responsible for Hip Dislocation. Paper presented at: Proceedings of the 24th Annual

Meeting of the American Society of Biomechanics; July 19–22, 2000; University of Illinois at

Chicago, Chicago, Illinois.

158.[159.] Pedersen DR, Callaghan JJ, McAndrew C, Johnston RC. Dislocation and Wear of 22mm

and 28mm Modular Heads in Uncemented Acetabular Cups. Paper presented at: Proceedings

of the Hip Society Summer Meeting; September 15–16, 2000; Boston, Massechussets.

159.[160.] Pedersen DR, Callaghan JJ, McAndrew C, Johnston RC. Total Hip Arthroplasty Wear

Rate Distributions are Non-Gaussian. Paper presented at: Proceedings of the Hip Society

Summer Meeting; September 15–16, 2000; Boston, Massechussets.

160.[161.] Wilken J, Pedersen DR, Yack HJ, Callaghan JJ. 3 Dimensional Kinematics of Movements

Associated with Hip Dislocation Following Hip Replacement Surgery. Paper presented at:

Proceedings of the 2nd Annual Graduate Student Senate Research Forum; April 12, 2000;


46


161.[162.] Wilken J, Yack HJ, Pedersen DR, Brown TD, Callaghan JJ. 3 Dimensional Kinematics of

Movements Associated with Dislocation Following Hip Replacement Surgery. Paper presented

at: Proceedings of the College of Medicine Research Week 2000; April 25, 2000; The University

of Iowa, Iowa City, Iowa.

162.[163.] Brown TD, Maxian TA, Stewart KJ, Pedersen DR. Clinical Biomechanics of Wear in THA.

Paper presented at: Proceedings of the 1st Global Communication of the Art & Science of Joint

Replacement Surgery; October 31–November 2, 2001; Seoul, Korea.

163.[164.] Brown TD, Nadzadi ME, Scifert CF, Pedersen DR, Callaghan JJ. Biomechanics of THA

Dislocation. Paper presented at: Proceedings of the 1st Global Communication of the Art &

Science of Joint Replacement Surgery; October 31–November 2, 2001; Seoul, Korea.

164.[165.] Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Is a Polished Surface

Finish Optimal for a Collared Cemented Prosthesis? Paper presented at: Proceedings of the

68th Annual Meeting of the American Academy of Orthopaedic Surgeons; February 28–March


165.[166.] Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Cementless

Acetabular Fixation in Revision Hip Surgery: The Gold Standard for the New Millennium. Paper

presented at: Proceedings of the 68th Annual Meeting of the American Academy of Orthopaedic

Surgeons; February 28–March 4, 2001; San Francisco, California.

166.[167.] Grosland NM, Pedersen DR, Brown TD. Automating Voxel-Based Contact Finite Element

Models. Paper presented at: Proceedings of the 9th Annual Symposium of Computational

Methods in Orthopaedic Biomechanics; February 23, 2001; San Francisco, California.

167.[168.] Grosland NM, Pedersen DR, Brown TD. An Anatomical Voxel-Bsed FE Contact Analysis

Formulation. Paper presented at: Proceedings of the 25th Annual Meeting of the American

Society of Biomechanics; August 9–12, 2001; San Diego, California.

168.[169.] Johnston TL, Callaghan JJ, Pedersen DR, McAndrew CM. Are 22 mm Heads the Solution

to Polyethylene Wear in Cementless Acetabular Components? Paper presented at:

Proceedings of the 19th Annual Meeting of the Mid-America Orthopaedic Association; April 18–

22, 2001; Amelia Island Plantation, Florida.

169.[170.] Liu SS, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR. Cemented Metal Backed

Acetabular Components at Long-term Follow-up: What Lessons can be Applied to Cementless

Fixation? Paper presented at: Proceedings of the 19th Annual Meeting of the Mid-America

Orthopaedic Association; April 18–22, 2001; Amelia Island Plantation, Florida.

47


170.[171.] Liu SS, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Cemented

Metal Backed Acetabular Components at Long Term Follow-Up: What Lessons can be Applied

to Cementless Fixation? Paper presented at: Proceedings of the 11th Annual Meeting of the

American Association of Hip and Knee Surgeons; November 9–11, 2001; Dallas, Texas.

171.[172.] Nadzadi ME, Pedersen DR, Yack HJ, Callaghan JJ, Brown TD. Incorporation of In-Vivo

Human Kinetic Data Into a Finite Element Model of THA Dislocation. Paper presented at:

Proceedings of the 9th Annual Symposium of Computational Methods in Orthopaedic

Biomechanics; February 23, 2001; San Francisco, California.

172.[173.] Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Cup Abduction/Anteversion Effects

on Dislocation Propensity for Small-Head-Size THR. Paper presented at: Transactions of the

47th Annual Meeting of the Orthopaedic Research Society; February 24–28, 2001; San


173.[174.] Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. A Mode of THA Dislocation

Occurring Without Impingement/Lever-Out. Paper presented at: Transactions of the 47th

Annual Meeting of the Orthopaedic Research Society; February 24–28, 2001; San Francisco,

California.

174.[175.] Nadzadi ME, Pedersen DR, Yack HJ, Brown TD. Maneuvers Commonly Responsible for

Hip Dislocation Define a Cup Placement 'Safe Zone' in Total Hip Arthroplasty. Paper presented

at: VA Research Day 2001; April 19, 2001; The University of Iowa, Iowa City, Iowa.

175.[176.] Nadzadi ME, Pedersen DR, Yack HJ, Callaghan JJ, Brown TD. Development of a Living-

Subject Motion Database to Examine Both Posterior and Anterior Dislocation in THA. Paper

presented at: Proceedings of the 2001 Bioengineering Conference, 2001.

176.[177.] Nadzadi ME, Pedersen DR, Yack HJ, Callaghan JJ, Brown TD. A Database of Living-

Subject Motion to Examine Both Posterior and Anterior Dislocation of Total Hip Replacements.

Paper presented at: Proceedings of the 25th Annual Meeting of the American Society of

Biomechanics; August 9–12, 2001; San Diego, California.

177.[178.] Pedersen DR, Yack HJ, Brown TD, Callaghan JJ. Kinematics of Maneuvers Commonly

Responsible for Total Hip Dislocation. Paper presented at: Proceedings of the 4th Combined

Meeting of the Orthopaedic Research Societies of the U.S.A, Canada, Europe and Japan; June

1–3, 2001; Rhodes, Greece.

178.[179.] Templeton JE, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR. Cementless

Acetabular Fixation in Revision Hip Surgery: The Gold Standard for the New Millennium. Paper

48


presented at: Proceedings of the 19th Annual Meeting of the Mid-America Orthopaedic

Association; April 18–22, 2001; Amelia Island Plantation, Florida.

179.[180.] Templeton JE, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC.

Cementless Acetabular Fixation in Revision Hip Surgery: Results at Minimum 10 Year Follow

Up. Paper presented at: Proceedings of the 11th Annual Meeting of the American Association of

Hip and Knee Surgeons; November 9–11, 2001; Dallas, Texas.

180.[181.] Callaghan JJ, Gaffey JL, Pedersen DR, Goetz DD, Johnston RC. Cementless Acetabular

Fixation at 15 Years: Comparison to the Gold Standard Charnley. Paper presented at: Joint

Meeting of the American and Canadian Orthopaedic Associations; June 1–4, 2002; Victoria,

British Columbia, Canada.

181.[182.] Callaghan JJ, Keener JD, Pedersen DR, Sullivan PM, Goetz DD, Johnston RC. Charnley

Total Hip Arthroplasty in Patients Under Age 50: Functional and Radiographic Results at

Minimum 25 Year Follow-up. Paper presented at: Joint Meeting of the American and Canadian

Orthopaedic Associations; June 1–4, 2002; Victoria, British Columbia, Canada.

182.[183.] Callaghan JJ, Pedersen DR. Long Term Follow-up Studies of Wear. Paper presented at:

International Conference Engineers & Surgeons - Joined at the Hip; June 13–15, 2002; Savoy

Place, London, United Kingdom.

183.[184.] Dai Y, Pedersen DR, Grosland NM, Brown TD. Interactive Three-Dimensional

Computational Reconstruction of Intra-Articular Fractures. Paper presented at: Proceedings of

the 10th Annual Symposium on Computational Methods in Orthopaedic Biomechanics;

February 9, 2002; Dallas, Texas.

184.[185.] Gaffey JL, Callaghan JJ, Pedersen DR, Goetz DD, Johnston RC. Cementless Acetabular

Fixation at 15 Years: Comparison to the Gold Standard Charnley. Paper presented at:

Proceedings of the 68th Annual Meeting of the American Academy of Orthopaedic Surgeons;

February 13–17, 2002; Dallas, Texas.

185.[186.] Lamb CA, Pedersen DR, Dolan LA, Morcuende JA, Weinstein SL. Radiographic

Measurements in DDH: Reliability and Validity of a Digitizing Program. Paper presented at:

Transactions of the 48th Annual Meeting of the Orthopaedic Research Society; February 10–13,

2002; Dallas, Texas.

186.[187.] Lamb CA, Pedersen DR, Dolan LA, Morcuende JA, Weinstein SL. Radiographic

Measurements in DDH: Reliability and Validity of a Digitizing Program. Paper presented at:

Proceedings of the Annual Meeting of the Pediatric Orthopaedic Society of North America; May

1–5, 2002; Salt Lake City, Utah.49


187.[188.] Pedersen DR, Callaghan JJ, Johnston TL, Fetzer GB, Johnston RC. Are 22 Millimeter

Heads the Solution to Polyethylene Wear in Cenentless Acetabular Components? Paper

presented at: Proceedings of the 68th Annual Meeting of the American Academy of Orthopaedic

Surgeons; February 13–17, 2002; Dallas, Texas.

188.[189.] Pedersen DR, Ralston HM, Lamb CA, Weinstein SL. Bone morphology changes in DDH

hips. Paper presented at: Proceedings of the IV World Congress of Biomechanics; August 4–9,

2002; Calgary, Alberta, Canada..

189.[190.] Stewart KJ, Pedersen DR, Brand RA, Brown TD. Hyperelastic Representation of Hip Joint

Capsule: A Finite Element Validation. Paper presented at: Proceedings of the IV World

Congress of Biomechanics; August 4–9, 2002; Calgary, Alberta, Canada.

190.[191.] Callaghan JJ, Gaffey JL, Goetz DD, Sullivan PM, Pedersen DR, Johnston, RC.

Cementless acetabular fixation at 15 years with the HG-I component: Comparison to the gold

standard Charnley. The American Association of Hip & Knee Surgeons 12th Annual Fall

Meeting, November 1–3, 2002, Dallas, Texas, paper #12.

191.[192.] Callaghan JJ, Pedersen DR, Johnston RC, Brown TD. OREF Clinical Research Award:

Clinical Biomechanics of Wear in Total Hip Arthroplasty. Paper presented at: 49th Annual

Meeting of the Orthopaedic Research Society; Feb., 2003; New Orleans, Louisiana.

192.[193.] Stewart KJ, Pedersen DR, Brand RA, Brown TD. Hyperelastic Representation of Hip Joint

Capsule: A Finite Element Validation. Paper presented at: 49th Annual Meeting of the

Orthopaedic Research Society; February, 2003; New Orleans, Louisiana.

193.[194.] Gaffey JL, Callaghan JJ, Pedersen DR, Goetz DD, Sullivan PM, Johnston RC.

Cementless Acetabular Fixation at 15 Years: Comparison to the Same Surgeon's Cemented

Results. Paper presented at: Annual Meeting of MidAmerica Orthopaedic Association; April,

2003; Hilton Head, South Carolina.

194.[195.] Callaghan JJ, Pedersen DR, Brown TD, Johnston RC. Clinical biomechanics of wear in

THA. 2003 OREF Award paper. The University of Iowa Department of Orthopaedics 29th

Annual Senior Residents’ Days, June 6–7, 2003, Iowa City, Iowa.

195.[196.] Ralston HM, Pedersen DR. Bone Morphology Changes in DDH Hips Throughout

Adulthood. 27th Annual Meeting of the American Society of Biomechanics, September 25–27,

2003, Toledo, Ohio.

196.[197.] Bouchard SM, Stewart KJ, Pedersen DR, Brown TD. Parameters Influencing Dislocation

Resistance of Constrained Acetabular Cups. 12th Annual Symposium on Computational

50


Methods in Orthopaedic Biomechanics, March 6, 2004, Parnassus Campus, University of

California, San Francisco, California.

197.[198.] Lundberg HJ, Stewart KJ, Pedersen DR, Brown TD. Problematic Sites of Third body

Embedment in Polyethylene for Wear Acceleration in Total Hip Arthroplasty. 12th Annual

Symposium on Computational Methods in Orthopaedic Biomechanics, March 6, 2004,

Parnassus Campus, University of California, San Francisco, California. (Oral Presentation.

Session title: Bone and prosthesis modeling)

198.[199.] Stewart KJ, Pedersen DR, Brown TD. Development of a Total Hip Dislocation Finite

Element Model with Capsule Representation. 12th Annual Symposium on Computational


California, San Francisco, California. (Accepted for Oral Presentation. Session title: Soft tissue

modeling)

199.[200.] Bouchard SM, Stewart KJ, Pedersen DR, Brown TD. Parameters Influencing Performance

of Constrained Acetabular Cups. 50th Annual Meeting of the Orthopaedic Research Society,

March 7–10, 2004, San Francisco, California. p. 1339.

200.[201.] Pedersen DR, Callaghan JJ, Brown TD. Activity-dependence of the Safe Zone for THA

Performance. 50th Annual Meeting of the Orthopaedic Research Society, March 7–10, 2004,

San Francisco, California. p. 1342.



San Francisco, California. p. 1342.

202.[203.] Callaghan JJ, Templeton JE, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. A

Benchmark for Future Total Hip arthroplasty: Results of Charnley THR at Minimum 30-year

Follow Up. 71st Annual Meeting of the American Academy of Orthopaedic Surgeons, March 10,

2004, San Francisco, California, p. 090.

203.[204.] Bouchard SM, Stewart KJ, Pedersen DR, Callaghan JJ, Brown TD. Parameters

Influencing Performance of Constrained Acetabular Cups. Roy J. and Lucille A. Carver College

of Medicine/College of Public Health/VA Medical Center Research Week 2004, March 30– April

1, 2004, Iowa City, Iowa.

204.[205.] Leinen JA, Schroeder BT, Pedersen DR, Dolan LA, Weinstein SL, Morcuende JA. Long-

term Outcome After Closed Reduction for Developmental Dysplasia of the Hip. Roy J. and

Lucille A. Carver College of Medicine/College of Public Health/VA Medical Center Research

Week 2004, March 30–April 1, 2004, Iowa City, Iowa.51



Dislocation Performance. Roy J. and Lucille A. Carver College of Medicine/College of Public

Health/VA Medical Center Research Week 2004, March 30– April 1, 2004, Iowa City, IA.

206.[207.] Dahl KA, Callaghan JJ, Pedersen DR, Liu SS, Goetz DD, Sullivan PM, Johnston RC. The

Effect of Cable Debris on Acetabular Construct Durability in Cemented Total Hip Arthroplasty at

Minimum Twenty-year Follow-up. Mid-American Orthopaedic Association 22nd Annual Meeting,

April 14–18, 2004, La Quinta, Palm Springs, California.

207.[208.] Buckwalter AE, Callaghan JJ, Pedersen DR, Goetz DD, Vittetoe DA. A Minimum Twenty-

five-year Follow-up Study of Cemented Total Hip Arthroplasty Using “Contemporary” Cementing

Techniques. 35th Annual Student Medical Research Day, September 5, 2003, University of

Iowa, Iowa City, Iowa.

208.[209.] Firestone DE, Liu SS, Callaghan JJ, Gaffey JL, Pedersen DR, Goetz DD, Vittetoe DD,

Sullivan PM, Johnston RC. Comparison of Tthree Cemented Femoral Components with

Identical Geometry But Different Surface Finishes at Minimum Ten-year Follow-up. (Edward D.

Henerson Physician in Training Award). Mid-American Orthopaedic Association 22nd Annual

Meeting, April 14–18, 2004, La Quinta, Palm Springs, California.

209.[210.] Baer, T.E., Pedersen, D.R., Rudert, J.M., Kallemeyn, N.A., Grosland, N.M., Brown, T.D.: A

Novel Device For Calibrating Sheet Array Pressure Sensors and For Monitoring Their

Performance. 28th Annual Meeting of the American Society of Biomechanics, September 8–11,

2004, Portland, Oregon, p. 239.

210.[211.] Bouchard, S.M., Stewart, K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: A Parametric

Finite Element Study of Constrained Acetabular Liners. 28 th Annual Meeting of the American

Society of Biomechanics, September 8–11, 2004, Portland, Oregon, p. 174.

211.[212.] Lundberg, H.J., Stewart, K.J., Pedersen, D.R., Brown, T.D.: Problematic Sites of Third

Body Embedment in Polyethylene For Wear Acceleration in Total Hip Arthroplasty. 28 th Annual

Meeting of the American Society of Biomechanics, September 8–11, 2004, Portland, Oregon,

p.180.

212.[213.] Stewart, K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Capsule Representation in a

Total Hip Dislocation Finite Element Model. 28th Annual Meeting of the American Society of

Biomechanics, September 8–11, 2004, Portland, Oregon, p.129.

213.[214.] Pedersen, DR; Firestone, DE; Liu, SS; Callaghan, JJ; Goetz, DD; Johnston, RC. Durability

of Identical Cemented Femoral Component Geometries with Three Different Surface Finishes

52


Compared at Minimum 10-Year Follow-Up. Proceedings of the 4 th Chinese Speaking

Orthopaedic Society Scientific Congress, September 22–26, 2004, Beijing, China. p.87.

214.[215.] McKinley, T.O., Rudert, M.J., Koos, D.K., Pedersen, D.R., Baer, T.E., Tochigi, Y., Marsh,

J.L., Brown, T.D.: Real-Time Transient and Whole-Stance Phase Contact Stress and Contact

Stress Gradient Changes in an Ankle Incongruity Model. OTA 20th Annual Meeting, October 8,

2004, Ft. Lauderdale/Hollywood, Florida.

215.[216.] Baer, T.E., Pedersen, D.R., Rudert, J.M., Kallemeyn, N.A., Grosland, N.M., Brown, T.D.:

Calibrating and Monitoring Sheet Array Pressure Sensors for Intra-Articular Loading

Measurement. 5th Combined Meeting of the Orthopaedic Research Societies of the U.S.A.,

Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta, Canada, p.115.

216.[217.] Bouchard, S.M., Stewart, K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Factors

Influencing Mechanics of Constrained Acetabular Cups. 5 th Combined Meeting of the

Orthopaedic Research Societies of the U.S.A., Canada, Japan and Europe, October 10–13,

2004, Banff, Alberta, Canada, p.251.

217.[218.] Lundberg, H.J., Stewart, K.J., Pedersen, D.R., Brown, T.D.: Problematic Sites of Third

Body Embedment in Polyethylene For Wear Acceleration in Total Hip Arthroplasty. 5 th

Combined Meeting of the Orthopaedic Research Societies of the U.S.A., Canada, Japan and

Europe, October 10–13, 2004, Banff, Alberta, Canada, p. 215.


J.L., Brown, T.D.: Whole-Cycle Contact Stress, Contact Stress Directional Gradient, and

Loading Rate Changes in an Ankle Incongruity Model. 5th Combined Meeting of the Orthopaedic

Research Societies of the U.S.A., Canada, Japan and Europe, October 10–13, 2004, Banff,

Alberta, Canada, p. 064.


J.L., Brown, T.D.: Time-Variant Contact Stress, Contact Stress Directional Gradient, and

Loading Rate Changes in an Ankle Incongruity Model. 5th Combined Meeting of the Orthopaedic


Alberta, Canada, p. 276.

220.[221.] Stewart, K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Capsule Representation in a

Total Hip Dislocation Finite Element Model. 5th Combined Meeting of the Orthopaedic Research

Societies of the U.S.A., Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta,

Canada, p. 107.

53


221.[222.] Tochigi, Y., Suh, J-S., Amendola, A., Pedersen, D.R., Saltzman, C.L.: Radiographic

Determination of AP Tibio-Talar Position: Sensitivity of Three Measures to Ankle Positional

cChanges. 5th Combined Meeting of the Orthopaedic Research Societies of the U.S.A.,

Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta, Canada. Poster Presentation:

Poster #279.


J.L., Brown, T.D.: Time-Variant Contact Stress, Contact Stress Directional Gradient, and

Loading Rate Changes in an Ankle Incongruity Model. 9th International Society for Fracture

Repair, November 2–11, 2004, Bologna, Italy, Poster #47. Abstract S23.

223.[224.] Kallemeyn, N.A., Grosland, N.M., Pedersen, D.R., Martin, J.A., Heiner, A.D., Brown, T.D.:

Heterogeneity of Shear Stress Modulation in Triaxial Compression of Cartilage. 1st Annual

Upper Midwest ASB Regional Student Meeting, November 12–13, 2004, Minneapolis,

Minnesota. Session: Bone and Soft Tissue Characterization , Paper #10.

224.[225.] Pedersen, D.R., Shivanna, K.H., Russell, M.E., Grosland, N.M.: Cyclic Cartilage Stress

Elevations in Dysplastic Hips. 9th World Congress of the Osteoarthritis Research Society

International, December 2–5, 2004, Chicago, Illinois, S47–48.

225.[226.] Kallemeyn, N., Grosland, N.M., Pedersen, D.R., Martin J., Heiner, A.D., Brown, T.D.:

Heterogeneity of Shear Stress Modulation in Triaxial Compression of Cartilage. 9 th World

Congress of the Osteoarthritis Research Society International, December 2–5, 2004, Chicago,

Illinois, S103.

226.[227.] Baer, T.E., Pedersen, D.R., Rudert, M.J., Kallemeyn, N.A., Grosland, N.M., Brown, T.D.:

Traveling-Wave Calibration of Intra-Articular Sheet Array Pressure Sensors. 9 th World Congress

of the Osteoarthritis Research Society International, December 2–5, 2004, Chicago, Illinois,

S125.

227.[228.] Lundberg, H.J., Pedersen, D.R., Muste, M.V., Baer, T.E., Brown, T.D.: Quantifying Fluid

Ingress to the Joint Space During THA Subluxation. University of Iowa College of Engineering

3rd Annual Research Open House, April 7, 2005, Iowa City, Iowa.

228.[229.] Shivanna, K.H., Pedersen, D.R., Grosland, N.M.: Finite Element Mesh Generation of

Synovial Joints. University of Iowa College of Engineering 3rd Annual Research Open House,

April 7, 2005, Iowa City, Iowa. (Abstract and Poster Presentation)

229.[230.] Anderson DD, Goldsworthy JK, Shivanna KH, Grosland NM, Pedersen DR, Thomas TP,

Tochigi Y, Marsh JL, Brown TD. Patient-specific finite element analysis of intra-articular chronic

54


stress exposure of the ankle during stance phase of gait. 10th International Symposium on

Computer Simulation in Biomechanics (ISCSB - 2005) , July 28–July 30, 2005, Cleveland, Ohio.

230.[231.] Baer, T.E., Pedersen, D.R., Rudert, M.J., Kallemeyn, N.A., Grosland, N.M., Brown, T.D.:

Calibration and Monitoring of Piezoresistive Contact Stress Arrays Using a Traveling Pressure

Wave Protocol. XXth Congress of the International Society of Biomechanics and 29th Annual

Meeting of the American Society of Biomechanics, July 31–August 5, 2005, Cleveland, Ohio.

Abstract #1165.

231.[232.] Goetz, J.E., Baer, T.E., Kurriger, G., Pedersen, D.R., Brown,T.D.: Three Dimensional

Multiscale Reconstruction of Emu Femoral Head Osteonecrosis: From Cell to Organ Level.

XXth Congress of the International Society of Biomechanics and 29th Annual Meeting of the

American Society of Biomechanics, July 31–August 5, 2005, Cleveland, Ohio. Bone 1: Abstract

# 977.

232.[233.] Goldsworthy, J.K., Anderson, D.D., Shivanna, K.H., Grosland, N.M., Pedersen, D.R.,

Brown, T.D.: Chronic Stress Exposure Following Intra-Articular Ankle Fractures. XXth Congress

of the International Society of Biomechanics and 29th Annual Meeting of the American Society

of Biomechanics, July 31–August 5, 2005, Cleveland, Ohio. Ankle: Abstract #1246.

233.[234.] Kallemeyn, N.A., Grosland, N.M., Pedersen, D.R., Martin, J.A., Heiner, A.D., Brown,T.D.:

A Finite Element Analysis of Cartilage in Cyclic Triaxial Compression. XXth Congress of the

International Society of Biomechanics and 29th Annual Meeting of the American Society of

Biomechanics, July 31–August 5, 2005, Cleveland, Ohio. Osteoarthritis and Cartilage: Abstract

#568.

234.[235.] Lundberg, H.J., Pedersen, D.R., Muste, M.V., Baer, T.E., Brown, T.D.: Quantifying Fluid

Ingress to the Joint Space During Total Hip Implant Subluxation. XXth Congress of the


Biomechanics, July 31–August 5, 2005, Cleveland, Ohio. Joint Mechanics: Abstract #512.

235.[236.] Callaghan JJ, Teusink MJ, Liu SS, Sullivan J, Goetz DD, Vittetoe DA, Pedersen DR,

Johnston RC. Cementless acetabular fixation in patients under 50 years of age: A 10–18 year

follow-up study. Hip Society Summer Meeting, September 22–24, 2005, Pittsburgh,

Pennsylvania.

236.[237.] Pedersen, D.R., Stewart, K.J., Brown,T.D., Callaghan, J.J.: Capsule Defect Influences on

Total Hip Dislocation Propensity—A Finite Element Exploration. BMES 2005 Annual Fall

Meeting: The Changing Face of Biomedical Engineering: Celebration of the Whitaker

Foundation, September 28–October 1, 2005, Baltimore, Maryland. Abstract #0726.55


237.[238.] Goldsworthy, J.K., Anderson, D.D., Shivanna, K., Grosland, N.M., Pedersen, D.R.,

Thomas, T.P., Tochigi, Y., Marsh, J.L., Brown, T.D.: Patient-Specific Computer Modeling of

Degeneration Propensity Due to Aberrant Contact Stress Exposure Following Intra-Articular

Fracture of the Ankle. 10th World Congress on Osteoarthritis, December 8–11, 2005, Boston,

Massachusetts. pp. S82–83.

238.[239.] Pedersen, D.R., Martin, J.A.: Chondrocyte Fiducials For Analysis of Cartilage Strain

Heterogeneity During Dynamic Cyclic Loading. 6th Symposium of ICRS 2006, January 8–11,

2006, San Diego, California.

239.[240.] Conzemius MG, Robinson DA, Theis LI, Waxman A, Evans R, Derrick T, Goetz JE,

Pedersen DR, Brown TD. Characterization of ground reaction forces in the normal emu. 2nd

World Veterinary Orthopaedic Congress, Keystone, Colorado, February 25–March 4, 2006.

240.[241.] Brown, T.D., Derrick, T.R., Pedersen, D.R., Goetz, J.E., Robinson, D.A., Conzemius,

M.G.: Stance-Phase Kinematics and Kinetics of Emu Level Walking. 52nd Annual Meeting of the

Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois.

241.[242.] Goldsworthy, J.K., Anderson, D.D., Shivanna, K., Grosland, N.M., Pedersen, D.R.,

Thomas, T.P., Tochigi, Y., Marsh, J.L., Brown, T.D.: Patient-Specific Modeling of Degeneration

Propensity Following Intra-Articular Fracture of the Ankle. 52nd Annual Meeting of the

Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois.

242.[243.] Goldsworthy, J.K., Anderson, D.D., Pedersen, D.R., Tochigi, Y., Brown, T.D.: Achieving

Physiologic Rotation in Patient-Specific Contact Stress Analysis of the Ankle. 52nd Annual

Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois.

243.[244.] Kallemeyn, N.A., Grosland, N.M., Pedersen, D.R., Martin, J.A., Heiner, A.D., Brown, T.D.:

A Poroelastic Finite Element Analysis of Cartilage in Dynamic Triaxial Compression. 52nd Annual


244.[245.] Lundberg, H.J., Pedersen, D.R., Brown, T.D.: Effects of Femoral Head Size on Fluid

Ingress During Impingement/Subluxation. 52nd Annual Meeting of the Orthopaedic Research

Society, March 19–22, 2006, Chicago, Illinois.

245.[246.] McKinley TO, Rudert MJ, Tochigi Y, Pedersen DR, Brown TD. Cartilage contact pressure

elevations associated with articular surface incongruity and unstable joint motion. 52nd Annual


246.[247.] Pedersen, D.R., Chung, Y.Y., Callaghan, J.J., Brown, T.D.: Wear Direction Versus Wear

Rate in 3rd Body-Challenged THA Cohorts. 52nd Annual Meeting of the Orthopaedic Research

Society, March 19–22, 2006, Chicago, Illinois.56


247.[248.] Pedersen, D.R., Russell, M.E., Shivanna, K.H., Grosland, N.M.: Cartilage Contact

Pressure Elevations in Dysplastic Hips. 52nd Annual Meeting of the Orthopaedic Research

Society, March 19–22, 2006, Chicago, Illinois.

248.[249.] Shivanna, K.H., Grosland, N.M., Russell, M.E., Brown, T.D., Pedersen, D.R.: Cartilage

Contact Pressure Elevations in Dysplastic Hhips After Ganz Osteotomy. 52nd Annual Meeting of

the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois.

249.[250.] Stewart KJ, Pedersen DR, Callaghan JJ, Brown TD. Capsular Atrophy and Detachment

Influences on THA Dislocation Propensity: A finite Element Model Exploration. 52nd Annual


250.[251.] Dahl KA, Pedersen DR, Callaghan JJ, Goetz DD, Vittetoe DA, Sullivan PM, Young-Yool C,

Johnston RC. The effect of cable debris on acetabular construct durability in cemented THA at

19–20 year follow-up. 73rd Annual Meeting of the American Academy of Orthopaedic Surgeons,

March 22–26, 2006, Chicago, Illinois.

251.[252.] Goldsworthy JK, Anderson DD, Rudert MJ, Tochigi Y, Pedersen, DR, Brown TD.

Validation of a patient-specific finite element model of the Ankle. 14th Annual Symposium on

Computational Methods in Orthopaedic Biomechanics, March 18, 2006, Chicago, Illinois.

252.[253.] Goreham-Voss CM, Rudert MJ, Brown TD. Poroelestic finite element analysis of a step-off

articular incongruity. 14th Annual Symposium on Computational Methods in Orthopaedic

Biomechanics, March 18, 2006, Chicago, Illinois.

253.[254.] Goetz JE, Baer TE, Kurriger GL, Pedersen DR, Robinson DA, Conzemius MG, Brown, TD.

Three-dimensional histologic evaluation of osteonecrotic lesion volume in the emu femoral

head. 2006 Midwest Graduate Student Biomechanics Symposium (MWGSBS), March 31–April

1, 2006, Milwaukee, Wisconsin.

254.[255.] Goldsworthy JK, Anderson DD, Rudert MJ, Tochigi Y, Pedersen DR, Brown TD. Validation

of a patient-specific finite element model of the ankle. 2006 Midwest Graduate Student

Biomechanics Symposium (MWGSBS), March 31–April 1, 2006, Milwaukee, Wisconsin.

Outstanding Research Award Winner.

255.[256.] Lundberg HJ, Pedersen DR, Brown TD. Effects of femoral head size on fluid ingress

during THA impingement/subluxation. 2006 Midwest Graduate Student Biomechanics

Symposium (MWGSBS), March 31–April 1, 2006, Milwaukee, Wisconsin.

57


256.[257.] Lundberg HJ, Pedersen DR, Brown TD. Effects of femoral head size on fluid ingress

during THA impingement/subluxation. The University of Iowa College of Engineering 4th Annual

College of Engineering Research Open House, April 20, 2006, Iowa City, Iowa.

257.[258.] Thedens DR, Pedersen DR, Martin JA, Brown TD. T1rho imaging of mechanically

stressed human cartilage. ISMRM 14th Scientific Meeting, May 6–12, 2006, Seattle,

Washington.

258.[259.] Lundberg HJ, Pedersen DR, Callaghan JJ, Brown TD. Effects of implant design

parameters on fluid ingress during THA impingement/subluxation. 5 th World Congress on

Biomechanics, July 29–August 4, 2006, Munich, Germany. Abstract S138.

259.[260.] Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Multi-scale geometric

measurements of experimentally induced osteonecrotic lesions in an emu model. 30th Annual

Meeting of the American Society of Biomechanics, September 6–9, 2006, Blacksburg, Virginia.

Abstract ID #134.

260.[261.] Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Anatomy-

based model of normal emu during gait. 30th Annual Meeting of the American Society of

Biomechanics, September 6–9, 2006, Blacksburg, Virginia. Abstract ID #210.

261.[262.] Goldsworthy JK, Anderson DD, Rudert MJ, Tochigi Y, Pedersen DR, Brown TD. Validation

of a patient-specific finite element model of the ankle. 30th Annual Meeting of the American

Society of Biomechanics, September 6–9, 2006, Blacksburg, Virginia. Abstract ID #212.

MicroStrain Award Winner.262.[263.] Lundberg HJ, Pedersen DR, Callaghan JJ, Brown TD. Effects of implant design

parameters on fluid ingress during THA impingement/subluxation. 30th Annual Meeting of the

American Society of Biomechanics September 6–9, 2006, Blacksburg, Virginia. Abstract ID

#27.

263.[264.] Tochigi Y, Rudert MJ, McKinley TO, Pedersen DR, Brown TD. Cartilage contact stress

aberration during unstable joint motion. 30th Annual Meeting of the American Society of

Biomechanics, September 6–9, 2006, Blacksburg, Virginia. Abstract ID #206.

264.[265.] Callaghan JJ, O’Rourke MR, Liu SS, Pedersen DR, Johnston RC. Follow-up of a

cemented collared matte finish femoral component at 19 to 20 years. Closed Meeting of the Hip

Society, Iowa City, Iowa, September 7–9, 2006.

265.[266.] Callaghan JJ, Lundberg HJ, Liu SS, Pedersen DR, O’Rourke MR, Goetz DD, Vittetoe DA,

Clohisy J, Brown TD. Analysis of retrieved acetabular liners for impingement damage and

58


embedded third body debris. Closed Meeting of the Hip Society, Iowa City, Iowa, September 7–

9, 2006.

266.[267.] Lundberg HJ, Callaghan JJ, Liu SS, Pedersen DR, O’Rourke MR, Goetz DD, Vittetoe DA,


embedded third body debris. The Hip Society Summer Meeting, September 7–9, 2006, Iowa

City, Iowa.

267.[268.] Yehyawi TM, Callaghan JJ, O’Rourke MR, Pedersen DR, Liu SS. Implications of sagittal

femoral bowing on knee arthritis and total knee arthroplasty. University of Iowa College of

Medicine Student Research Day, University of Iowa, September 8, 2006, Iowa City, Iowa.

268.[269.] Callaghan JJ, Yehyawi TM, O’Rourke MR, Pedersen DR, Liu SS, Clark CR. Implications of

sagittal femoral bowing on knee arthritis and total knee replacement. Knee Society Interim

Meeting September 28–30, 2006, Alexandria, Virginia.

269.[270.] Callaghan JJ, Yehyawi TM, O’Rourke MR, Liu SS, Pedersen DR. Implication of sagittal

femoral bowing on knee arthritis and total knee replacement. 16th Annual Meeting of the

American Association of Hip and Knee Surgeons, November 3–5, 2006, Dallas, Texas.

270.[271.] Callaghan JJ, Altenburg A, Leinen JA, Dahl KA, Pedersen DR, Liu SS, Goetz DD, Vittetoe

DA, Sullivan PM, Chung YY, Johnston RC. The effect of cable debris on acetabular construct

durability in cemented total hip arthroplasty at nineteen to twenty year follow-up. 16th Annual

Meeting of the American Association of Hip and Knee Surgeons, November 3–5, 2006, Dallas,

Texas.

271.[272.] Goetz JE, Pedersen DR, Brown TD. Thermal property determination of emu cancellous

bone using finite element modeling. 15th Annual Symposium on Computational Methods in

Orthopaedic Biomechanics, February 10, 2007, University of California - San Diego, La Jolla,

California.

272.[273.] Mittelholtz KS, Pedersen DR, Mendoza SA, Mayer HM, Siepe C, Hall RM, Brown TD.

Finite element analysis of total disc replacement wear. 15th Annual Symposium on

Computational Methods in Orthopaedic Biomechanics, February 10, 2007, University of

California - San Diego, La Jolla, California.

273.[274.] Moussavi-Harami SF, Pedersen DR, Martin JA, Brown TD. Quantitative image analysis of

cartilage histology. 15th Annual Symposium on Computational Methods in Orthopaedic

Biomechanics, February 10, 2007, University of California - San Diego, La Jolla, California.

59


274.[275.] Rumery MP, Pedersen DR, Brown TD, Mendoza SA, Mayer HM, Siepe C, Hall RM.

Performance of a novel pose-based technique for measuring total disc replacement wear. 15th

Annual Symposium on Computational Methods in Orthopaedic Biomechanics, February 10,

2007, University of California - San Diego, La Jolla, California.

275.[276.] Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. A gait-

based anatomic analysis of emu hip joint loading. 53rd Annual Meeting of the Orthopaedic

Research Society, February 11–14, 2007, San Diego, California. Abstract Submission

3927A19255.

276.[277.] Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Brown TD.

Evaluation of osteonecrotic lesion volume in the emu femoral head by three dimensional

histology. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007,

San Diego, California. Abstract Submission 3569A1669.

277.[278.] Hecht BA, Martin JA, Pedersen DR, Heiner AD, Amendola R, Buckwalter JA. Oxidant pre-

conditioning protects cartilage from mechanically-induced cell death. 53rd Annual Meeting of

the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. San Diego,

California. Abstract Submission 3022A10781.

278.[279.] Lundberg HJ, Liu SS, Pedersen DR, Callaghan JJ, Brown TD. Analysis of retrieved

acetabular liners for impingement damage and embedded third body debris. 53rd Annual

Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California.

Abstract Submission 3774A11780.

279.[280.] Martin JA, Pedersen DR, Heiner AD, Buckwalter JA, Brown TD. N-acetyl cysteine protects

cartilage from loading-induced proteoglycan loss. 53rd Annual Meeting of the Orthopaedic

Research Society, February 11–14, 2007, San Diego, California. Abstract Submission

3055A18930.

280.[281.] Moussavi-Harami SF, Pedersen DR, Martin JA, Brown TD. Automated objective scoring of

osteoarthritis severity. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–

14, 2007, San Diego, California. Abstract Submission 3332A10740.

281.[282.] Stroud NJ, Martin JA, Pedersen DR, Goetz JE, Brown TD. Structure and function of emu

versus human articular cartilage. 53rd Annual Meeting of the Orthopaedic Research Society,

February 11–14, 2007, San Diego, California. Abstract Submission 3276A24173.

282.[283.] Thedens DR, Pedersen DR, Martin JA, Brown TD. Assessment of mechanically stressed

human cartilage with T1ρ imaging. 53rd Annual Meeting of the Orthopaedic Research Society,

February 11–14, 2007, San Diego, California. Abstract Submission 4029A3931.60


283.[284.] Tochigi Y, Rudert MJ, McKinley TO, Pedersen DR, Brown TD. An experimental model of

joint instability for study of dynamic cartilage contact mechanics. 53rd Annual Meeting of the

Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Abstract

Submission 1140A14915.

284.[285.] Yehyawi TM, Callaghan JJ, O’Rourke MR, Liu SS, Pedersen DR. Implications of sagittal

femoral bowing on knee arthritis and total knee replacement. 53rd Annual Meeting of the

Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Abstract

Submission 2997A2271.

285.[286.] McKinley TO, Tochigi Y, Rudert MJ, Pedersen DR, Brown TD. Instability -associated

changes in contact stress and contact stress rates in human ankles. 74th Annual Meeting of the

American Academy of Orthopaedic Surgeons, February 14–18, 2007, San Diego, California.



embedded third body debris. 2007 Annual Meeting of the Mid-America Orthopaedic Association,

April 11–15, 2007, Boca Raton, Florida.

287.[288.] Yehyawi T, Callaghan JJ, O’Rourke MR, Liu SS, Pedersen DR. Implication of sagittal

femoral bowing on knee arthritis and total knee replacement. 2007 Annual Meeting of the Mid-

America Orthopaedic Association, April 11–15, 2007, Boca Raton, Florida.

288.[289.] Mittelholtz KS, Pedersen DR, Mendoza SA, Mayer HM, Siepe C, Hall RM, Brown TD.

Finite element analysis of total disc replacement wear. 7th Annual Meeting of the Spine

Arthroplasty Society, May 1–4, 2007, Berlin, Germany.

289.[290.] Rumery MP, Pedersen DR, Brown TD, Mendoza SA, Mayer HM, Siepe C, Hall RM.

Accuracy of a novel pose-based technique for in-vivo measurement of total disc replacement

wear. 7th Annual Meeting of the Spine Arthroplasty Society, May 1–4, 2007, Berlin, Germany.

290.[291.] Thedens DR, Martin JA, Pedersen DR, Brown TD. Detection of proteoglycan depletion in

mechanically loaded cartilage with T1&[rho] imaging. ISMRM-ESMRMB Joint Annual Meeting,

May 19–25, 2007, Berlin, Germany.

291.[292.] Callaghan JJ, Leinen JA, Liu SS, Klaassen AL, Pedersen DR. Three to five year

radiographic follow-up of moderately cross-linked Marathon polyethylene in total hip

replacement. 120th Annual Meeting of the American Orthopaedic Association, Asheville, North

Carolina, June 13–16, 2007.

61


292.[293.] Callaghan JJ, Donigan JA, Teusink MJ, Warth LC, Liu SS, Sullivan J, Goetz DD, Vittetoe

DA, Pedersen DR, Johnston RC. Cementless acetabular fixation in patients age 50 and under:

a 10 to 18 year follow-up study. 120th Annual Meeting of the American Orthopaedic Association,

June 13–16, 2007, Asheville, North Carolina .


Clohisy JC, Brown TD. Analysis of retrieved acetabular liners for impingement damage and

embedded third body debris. 120th Annual Meeting of the American Orthopaedic Association,

Asheville, North Carolina, June 13–16, 2007.

294.[295.] Callaghan JJ, Altenburg A, Yehyawi TM, Dahl KA, Pedersen DR, Liu SS, Goetz DD,

Vittetoe DA,Sullivan PM, Chung YY, Johnston RC. The effect of cable debris on acetabular

construct durability in cemented total hip arthroplasty at nineteen to twenty year follow-up. 120 th

Annual Meeting of the American Orthopaedic Association, June 13–16, 2007, Asheville, North

Carolina.

295.[296.] Heiner AD, Lundberg HJ, Baer TE, Pedersen DR, Callaghan JJ, Brown TD. Episodic

subluxation increases third body ingress and embedment in the THA bearing surface. 31st

Annual Meeting of the American Society of Biomechanics, August 22–25, 2007, Stanford,

California. Abstract ID #263.

296.[297.] Tochigi Y, Rudert MJ, McKinley TO, Pedersen DR, Brown TD. Correlation of dynamic

cartilage contact stress aberration with severity of joint instability. 31st Annual Meeting of the

American Society of Biomechanics, August 22–25, 2007, Stanford, California. Abstract ID #213.

297.[298.] Brown TD, Pedersen DR, Stewart KJ, Callaghan JJ. Biomechanical studies of total hip

impingement/dislocation. (Invited Plenary Lecture) 15th Triennial Congress of the Asian Pacific

Orthopaedic Association (APOA) 2007, September 11, 2007, Seoul, Korea, p. 136.

298.[299.] Brown TD, Goetz JE, Pedersen DR, Conzemius MG. The emu as a bipedal animal model

of femoral head osteonecrosis. (Seminar) Biomedical Engineering Technology Institute, Yonsei

University, September 13, 2007, Seoul, South Korea.

299.[300.] Brown TD, Rumery MP, Mittelholtz K, Pedersen DR, Mendoza SA. New computational

techniques to assess wear of total disc replacement implants. (Seminar) Biomedical Institute,

Solco Biomedical Co., Ltd., September 14, 2007, Pyungteak, Korea.

300.[301.] Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Brown, TD. Contact

forces in the emu hip joint during normal walking. 6th Combined Meeting of the Orthopaedic

62


Research Societies, October 20–24, 2007, Honolulu, Hawaii. Paper No. 243. Podium

Presentation Session 27: Gait and Function.

301.[302.] Callaghan JJ, Yehyawi TM, O’Rourke MR, Pedersen DR, Liu SS. Implications of sagittal

femoral bowing on knee arthritis and total knee replacement. American Association of Hip and

Knee Surgeons 17th Annual Meeting, November 2–4, 2007, Dallas, Texas.

302.[303.] Moussavi-Harami SF, Pedersen DR, Martin JA, Hillis SL, Brown TD. Comparison of the

ICRS versus HHGS (Mankin) cartilage histology scales. OARSI World Congress on

Osteoarthrits 2007, December 6–9, 2007, Ft. Lauderdale, Florida. Abstract 07-A-119-OARSI.

Osteoarthritis Cartilage 2007;15(Suppl C):C127.

303.[304.] Moussavi-Harami SF, Pedersen DR, Martin JA, Hillis SL, Brown TD. Automated objective

scoring of cartilage histology. OARSI World Congress on Osteoarthrits 2007, December 6–9,

2007, Ft. Lauderdale, Florida. Abstract 07-A-87-OARSI. Osteoarthritis Cartilage 2007;15(Suppl

C):C166.

304.[305.] Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown, TD. A finite element

study of the structural effects of lesion morphology in a bipedal animal model of femoral head

osteonecrosis. 16th Annual Symposium on Computational Methods in Orthopaedic

Biomechanics, Saturday, March 1st, 2008, University of California-San Francisco, San


305.[306.] Brown TD, Rumery M, Pedersen DR, Mendoza SA. A pose-based image analysis

technique for measuring wear of total disc replacements. 54th Annual Meeting of the

Orthopaedic Research Society, March 2–5, 2008, San Francisco, California. Abstract ID:

399689.

306.[307.] Heiner AD, Lundberg HJ, Baer TE, Pedersen DR, Callaghan JJ, Brown TD. Episodic

subluxation increases third body ingress and embedment in the THA bearing surface. 54th

Annual Meeting of the Orthopaedic Research Society, March 2–5, 2008, San Francisco,

California. Abstract ID: 387622.

307.[308.] Ramakrishnan PS, Stroud NJ, Pedersen DR, Buckwalter J A, Martin JA. Time dependent

mechanical changes in cartilage after single blunt impact injury in vitro bovine osteochondral

model. 54th Annual Meeting of the Orthopaedic Research Society, March 2–5, 2008, San

Francisco, California. Abstract ID: 393569.

63


308.[309.] Stroud NJ, Ramakrishnan PS, Pedersen DR, BrownTD, Martin JA. Characterization of

emu and bovine tissue response to injury. 54th Annual Meeting of the Orthopaedic Research

Society, March 2–5, 2008, San Francisco, California. Abstract ID: 398565.



embedded third body debris. 75 th Annual Meeting of theAmerican Academy of Orthopaedic

Surgeons, March 5–9, 2008, San Francisco, California.

310.[311.] Mittelholtz K, Pedersen DR, Mendoza SA, Mayer HM, Siepe C, Hall RM, Brown TD. Finite

element analysis of total disc replacement wear. Spine Arthroplasty Society, Global Symposium

on Motion Preservation Technology 8th Annual Meeting, May 6–9, 2008, Miami, Florida.

Abstract A-066-0001-00431.

311.[312.] Rumery MP, Pedersen DR, Mendoza SA, Siepe C, Mayer HM, Brown TD. A pose-based

image analysis technique for measuring wear of total disc replacements.Spine Arthroplasty

Society, Global Symposium on Motion Preservation Technology 8th Annual Meeting, May 6–9,

2008, Miami, Florida. Abstract A-066-0001-00436.

312.[313.] Thedens DR, Martin JA, Mastbergen S, DeGroot J, Tadimalla S, Pedersen DR. Age, DJD,

OA: AGE, GAG, T1ρ MRI. 2nd Annual Workshop on Imaging Based Measures of Osteoarthritis,

June 25–28, 2008, Boston, Massachusetts.

313.[314.] Amendola RL, Martin JA, Kurriger GL, Moussavi-Harami SF, Brown TD, Pedersen DR.

Automated Mankin scoring of osteoarthritis severity in rabbits. The North American Congress on

Biomechanics (NACOB 2008), August 5–9, 2008, Ann Arbor, Michigan.Abstract ID364.

314.[315.] McCabe DJ, Stroud NJ, Pedersen DR, Martin JA. An innovative method to analyze the

chondrocyte response to mechanical injury both temporally and spatially. The North American

Congress on Biomechanics (NACOB 2008), August 5–9, 2008, Ann Arbor, Michigan. Abstract

ID #123.

315.[316.] Pedersen DR, Thedens DR, Martin JA, Tadimalla S, Ramakrishnan PS, Amendola A. ACL

rupture in an in vivo impact model. The North American Congress on Biomechanics (NACOB

2008), August 5–9, 2008, Ann Arbor, Michigan. Abstract ID 362.

316.[317.] Goreham-Voss CM, McCabe DJ, Rudert MJ, Martin JA, Pedersen DR, Brown TD. Spatial

correlations between local impact stress and cell death distributions. OARSI World Congress on

Osteoarthritis 2008, September 18–21, 2008, Rome, Italy. Abstract 07-A-292-OARSI.

64


317.[318.] McCabe DJ, Stroud NJ, Ramakrishnan P, Buckwalter JA, Pedersen DR, Martin JA.

Intracellular oxidant production by chondrocytes in osteochondral explants following blunt

impact injury. OARSI World Congress on Osteoarthritis 2008, September 18–21, 2008, Rome,

Italy. Poster Presentation #187. Osteoarthritis Cartilage 2008;16(Supp 4);S91–S92.

318.[319.] Amendola RL, Martin JA, Kurriger GL, Moussavi-Harami, SF, Brown TD, Pedersen DR.

Automated Mankin grading of OA severity in rabbits. 55 th Annual Meeting of the Orthopaedic

Research Society, February 22–25, 2009, Las Vegas, Nevada. Abstract ID: ORS2009-1020.

319.[320.] Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Effects of lesion

location on collapse propensity in the emu model of femoral head osteoecrosis. 55 th Annual

Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada.

Abstract ID: ORS2009-1793.

320.[321.] Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Thermal history

determinants of cryogenically-induced osteonecrosis in emu cancellous bone. 55 th Annual

Meeting of the Orthopaedic Research Society,February 22–25, 2009, Las Vegas, Nevada.

Abstract ID: ORS2009-1846.

321.[322.] Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Increased incidence

of femoral head collapse in the emu model of osteonecrosis following a drill guide-positioned

cryoprobe insult. 55th Annual Meeting of the Orthopaedic Research Society, February 22–25,

2009, Las Vegas, Nevada. Abstract ID: ORS2009-2041.

322.[323.] Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Comparison of bone

mineralization rates between avian and mammalian models of femoral head osteonecrosis. 55 th

Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas,

Nevada. Abstract ID: ORS2009-2712.

323.[324.] Pedersen DR, Martin JA, Mastbergen S, DeGroot J, Tadimalla S, Thedens DR. AGE

effects on PG-sensitive T1 MRI. 55th Annual Meeting of the Orthopaedic Research Society,

February 22–25, 2009, Las Vegas, Nevada. Abstract ID: ORS2009-1903.

324.[325.] Ramakrishnan P, Stroud N, McCabe D, Pedersen DR. Repeated measures improves

detection of early degenerative changes after cartilage injury. 55 th Annual Meeting of the

Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Abstract ID:

ORS2009-2820.

325.[326.] Stroud NJ, McCabe D, Goodwin W, Pedersen DR, Martin JA. An innovative method for

analysis of the distribution and timing of chondrocyte responses to mechanical injury in vitro.

65


55th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas,

Nevada. Abstract ID: ORS2009-1014.

326.[327.] Tadimalla S, Thedens DR, Martin JA, Amendola A, Pedersen DR. Cartilage health post-

ACL injury: T1ρ and dGEMRIC measurements. 55th Annual Meeting of the Orthopaedic

Research Society, February 22–25, 2009, Las Vegas, Nevada. Abstract ID: ORS2009-2958.

327.[328.] Elkins JM, Pedersen DR, Tochigi Y, Callaghan JJ, Weiss JA, Andersen AE, Brown TD.

Incorporating the hip capsule in a dynamic finite element model of total hip arthroplasty. Carver

College of Medicine, College of Pharmacy, College of Public Health and VA Health System

Research Week, April 14–15, 2009, Iowa City, Iowa.

328.[329.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Impingement contact mechanics of

hard-on-hard total hip bearings. Carver College of Medicine, College of Pharmacy, College of

Public Health and VA Health System Research Week, April 14–15, 2009, Iowa City, Iowa.

329.[330.] Stroud NJ, McCabe DJ, Goodwin WG, Pedersen DR, Martin JA. An innovative method for

analysis of chondrocyte responses to mechanical injury in vitro both spatially and temporally.

The University of Iowa College of Engineering’s Research Open House, April 16, 2009, Iowa

City, Iowa.

330.[331.] Thedens DR, Tadimalla S, Martin JA, Amendola A, Pedersen DR. T1 assessment of

human cartilage in an impact injury model. International Society for Magnetic Resonance in

Medicine 17th Scientific Meeting & Exhibition, Honolulu, Hawaii, April 18–24, 2009. Abstract

4319.

331.[332.] Pedersen DR, Tadimalla S, Thedens DR, Martin JA, Amendola A. Same day T1, T2 and

dGEMRIC measurements of cartilage post-ACL injury. 3rd International OA imaging Workshop

Osteoarthritis Imaging: Capitalising on the Knowledge Investment, May 13–16, 2009, York,

United Kingdom.

332.[333.] Brown TD, Lundberg HJ, Pedersen DR, Callaghan JJ. Clinical biomechanics of third body

acceleration of total hip wear. 61st Annual Meeting of the Association of Bone and Joint

Surgeons, May 13–17, 2009, Maui, Hawaii.

333.[334.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Orientation-dependent impingement

contact mechanics for hard-on-hard total hip bearings. 33rd Annual Meeting of the American

Society of Biomechanics, August 26–29, 2009, State College, Pennsylvania. Abstract

Submission #1028.

66


334.[335.] Williams G, Allen E, Wu J, Rudert MJ, Pedersen DR. Assessment of the Pressore Step™

system as an extended wear weightbearing activity monitor for use with orthopaedic patients.

33rd Annual Meeting of the American Society of Biomechanics, August 26–29, 2009, State

College, Pennsylvania. Abstract Submission #1222.

335.[336.] Thedens DR, Tadimalla S, Martin JA, Amendola A, Pedersen DR. T1rho assessment of

human cartilage impact injury model. OARSI World Congress on Osteoarthritis 2009,

September 10–13, 2009, Montreal, Quebec, Canada. Osteoarthritis Cartilage 2009;17(Supp

1):S226–227.

336.[337.] Pedersen, DR, Elkins JM, Callaghan JJ, Brown TD. Impingement contact mechanics of

total hip bearings. Closed Scientific Meeting of the Hip Society September 24–26, 2009, Palo

Alto, California.

337.[338.] Williams GN, Thedens DR, Tadimalla S, Amendola A, Pedersen DR. T1rho imaging of

cartilage in the first year after ACL injury. Segal North American Osteoarthritis Workshop III,

October 1–3, 2009, Chigago, Illinois.

338.[339.] Elkins JM, Pedersen DR, Tochigi Y, Rudert MJ, Ellis BJ, Callaghan JJ, Weiss JA, Brown

TD. Implementing a fiber-directed anisotropic capsule in a total hip arthroplasty dislocation finite

element model. 56th Annual Meeting of the Orthopaedic Research Society, March 6–9, 2010,

New Orleans, Louisiana. Abstract ID: ORS2010-1837.

339.[340.] Elkins JM, Pedersen DR, Tochigi Y, Rudert MJ, Ellis BJ, Callaghan JJ, Weiss JA, Brown

TD. Effect of cup orientation on resistance to hip dislocation during flexion/exorotation-

dominated kinetic challenge. 56th Annual Meeting of the Orthopaedic Research Society, March

6–9, 2010, New Orleans, Louisiana. Abstract ID: ORS2010-1856.

340.[341.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Impingement contact mechanics for

hard-on-hard total hip bearings. 56th Annual Meeting of the Orthopaedic Research Society,

March 6–9, 2010, New Orleans, Louisiana. Abstract ID: ORS2010-1791.

341.[342.] Kang L, Baer TE, Rudert MJ, Pedersen DR, Brown TD. An iterative calibration algorithm

for transient contact stress sensor grids. 56th Annual Meeting of the Orthopaedic Research

Society, March 6–9, 2010, New Orleans, Louisiana. Abstract ID: ORS2010-1761.

342.[343.] Seol DR, Choe HH, Jang KW, Lehman AD, Homandberg G, Heiner AD, Ramakrishnan

PS, Lim TH, Martin JA, Pedersen DR. Effect of impact-induced chemical factors on bovine

articular cartilage: A cell proliferation and migration study. 56 th Annual Meeting of the

67


Orthopaedic Research Society, March 6–9, 2010, New Orleans, Louisiana. Abstract ID:

ORS2010-3050.

343.[344.] Thedens DR, Klocke NF, Martin JA, Baer TE, Pedersen DR. Effect of B0 magnetic field

changes on quantitative T1 relaxation measurements. 56th Annual Meeting of the Orthopaedic

Research Society, March 6–9, 2010, New Orleans, Louisiana. Abstract ID: ORS2010-3313.

344.[345.] Klocke NF, Thedens DR, Martin JA, Brown TD, Pedersen DR. Semi-automatic canny edge

detected line profiles through the lateral femoral condyle in normal subjects using articular

cartilage-specific MRI. The University of Iowa College of Engineering’s Research Open House,

April 8, 2010, Iowa City, Iowa.

345.[346.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Impingement contact mechanics for

hard-on-hard total hip bearings. The Carver College of Medicine, College of Pharmacy, College

of Public Health, Institute for Clinical and Translational Science and VA Health System

Research Week, April 13–15, 2010, Iowa City, Iowa.

346.[347.] Thedens DR, Klocke NF, Amendola A, Pedersen DR. Semi-automated profile generation

for functional cartilage imaging. ISMRM/ESMRMB Joint Annual Meeting, May 1–7, 2010,

Stockholm, Sweden. Abstract 3894.


changes on quantitative T1r relaxation measurements. 4th International Workshop on Imaging

Based Measures of Osteoarthritis. June 2–4, 2010 Vancouver, Canada.

348.[349.] Klocke NF, Thedens DR, Martin JA, Amendola A, Brown TD, Pedersen DR. A line profile

approach to quantify PTOA using T1rho MRI. 6th World Congress on Biomechanics, August 1–

6, 2010, Suntec City, Singapore. Abstract Submission ID : WCB-A01535-02855.

349.[350.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. The capsule’s contribution to total hip

construct stability—A finite element analysis. 34th Annual Meeting of the American Society of

Biomechanics, August 18–21, 2010, Providence, Rhode Island. Abstract ID: 270.

350.[351.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Three dimensional fracture mechanics

of ceramic total hip bearings. 34th Annual Meeting of the American Society of Biomechanics,

August 18–21, 2010, Providence, Rhode Island. Abstract ID: 274.

351.[352.] Klocke NF, Thedens DR, Martin JA, Amendola A, Brown TD, Pedersen DR. A line profile

approach to quantify PTOA using T1r MRI. 34th Annual Meeting of the American Society of

Biomechanics, August 18–21, 2010, Providence, Rhode Island. Abstract ID: 294.

68



changes on quantitative T1 relaxation measurements. 2010 Osteoarthritis Research Society

International (OARSI) World Congress, September 23–26, 2010, Brussels, Belgium. Abstract

10-A-472-OARSI.

353.[354.] Pedersen DR, Thedens DR, Klocke NF, Amendola A. Semi-automated profile generation

for functional cartilage imaging. 7th Combined Meeting of the Orthopaedic Research Societies

(CORS), October 16–20, 2010, Kyoto, Japan. Abstract submission number: 2010E-0434.

354.[355.] Elkins JM, Stroud NJ, Pedersen DR, Tochigi Y, Rudert MJ, Callaghan JJ, Weiss JA,

Brown TD. The effect of regional hip capsule defects on total hip dislocation stability — A finite

element analysis. 57th Annual Meeting of the Orthopaedic Research Society, January 13–16,

2011, Long Beach, California. ORS Harris Award, Abstract ID: 929790.

355.[356.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Total hip instability in the morbidly

obese patient — A finite element exploration. 57th Annual Meeting of the Orthopaedic Research

Society, January 13–16, 2011, Long Beach, California. Abstract ID: 929795. Paper #0014.

356.[357.] Klocke NF, Thedens DR, Amendola A, Martin JA, Pedersen DR. Sensitivity of T1ρ MRI to

cartilage injury after acute ACL rupture. 57th Annual Meeting of the Orthopaedic Research

Society, January 13–16, 2011, Long Beach, California. Abstract ID: 936172.

357.[358.] Teusink MJ, Callaghan KA, Klocke NF, Pedersen DR, Johnston RC, Callaghan JJ.

Femoral remodeling around well-fixed cemented Charnley total hip Arthroplasty: A minimum

twenty year follow-up study. 57th Annual Meeting of the Orthopaedic Research Society, January

13–16, 2011, Long Beach, California. Abstract ID 935446.

358.[359.] Klocke NF, Thedens DR, Martin JA, Amendola A, Pedersen DR, Brown TD. Comparison

of compositional cartilage changes after ACL rupture as detected by T1ρ MRI. 9th Annual

College of Engineering Research Open House, April 7, 2011, Iowa City, IA. Poster Presentation.

359.[360.] Elkins JM, Pedersen DR, Tochigi Y, Callaghan JJ, Brown TD. The effect of variable

capsulorrhaphy on total hip stability. The Carver College of Medicine, College of Pharmacy,

College of Public Health, Institute for Clinical and Translational Science and VA Health System

Translational Genomics Health Sciences Research Week, April 13, 2011, Iowa City, Iowa.

360.[361.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Fracture mechanics of ceramic total

hip liners during impingement. The Carver College of Medicine, College of Pharmacy, College

of Public Health, Institute for Clinical and Translational Science and VA Health System


69


361.[362.] Elkins JM, Pedersen DR, Yack JH, Callaghan JJ, Brown TD.Increased risk of dislocation

in morbidly obese total hip patients—A finite element analysis. The Carver College of Medicine,

College of Pharmacy, College of Public Health, Institute for Clinical and Translational Science

and VA Health System Translational Genomics Health Sciences Research Week, April 13,

2011, Iowa City, Iowa.

362.[363.] Elkins JM, Kruger KM, Pedersen DR, Callaghan JJ, Brown TD. The influence of total hip

cup geometry on edge-loading severity in metal-on-metal bearings. The Carver College of

Medicine, College of Pharmacy, College of Public Health, Institute for Clinical and Translational

Science and VA Health System Translational Genomics Health Sciences Research Week, April

13, 2011, Iowa City, Iowa.

363.[364.] Thedens DR, Klocke NF, Martin JA, Baer TE, Pedersen DR. Consistency of T1

measurements: A phantom study. ISMRM Annual Meeting, May 9–12, 2011, Montréal, Québec,

Canada.

364.[365.] Teusink, Matthew J; Callaghan, Katharine A.; Klocke, Noelle F; Pedersen, Douglas R;

Johnston, Richard C; Callaghan, John J. Femoral Remodeling Around Well-Fixed Cemented

Charnley Total Hip Arthroplasty: A Minimum Twenty Year Follow-Up Study. AAOS Annual

Meeting, San Diego, California. February 15-18, 2011. Poster

365.[366.] Klocke NF, Thedens DR, Amendola A, Pedersen DR, Brown TD. Towards T1rho in the

clinic: A 3.0T and 1.5T comparison. OARSI 5th International Workshop on Osteoarthritis

Imaging, June 8–11, 2011, Salzburg, Austria.

366.[367.] Elkins JM, Pedersen DR, Sing B, Yack JH, Callaghan JJ, Brown TD. Dislocation in the

morbidly obese total hip patient. 35th Annual Meeting of the American Society of Biomechanics,

August 10–13, 2011, Long Beach, California. Abstract ID: 424.

367.[368.] Klocke NF, Thedens DR, Amendola A, Pedersen DR. Effects of spin-lock time selection in

T1rho relaxometry. OARSI World Congress on Osteoarthritis 2011, September 15–18, 2011,

San Diego, California.

368.[369.] Elkins JM, Brown TD, Pedersen DR, Callaghan JJ. Advanced Fracture Analysis of 36-mm

Alumina Total Hip Bearings. Summer Meeting of The Hip Society, September 22-24, 2011. Joint

Implant Surgeons, Inc. New Albany, Ohio

369.[370.] Ryan K. Takenaga, MA, MD; Nicholas A. Bedard, BS; Steve S. Liu, MD; Alison L.

Klaassen, MA; Douglas R. Pedersen, PhD; John J. Callaghan, MD. Cementless THA in Patients

Age 50 and Under at Minimum 10-Year Follow-Up: What Can Be Learned Concerning Durability

of the Construct? Poster, AAHKS 11/7/201170


370.[371.] Ryan K. Takenaga, MA, MD; Nicholas A. Bedard, BS; Steve S. Liu, MD; Alison L.

Klaassen, MA; Douglas R. Pedersen, PhD; John J. Callaghan, MD. Do We Need Pedometer

Data to Differentiate Long-Term Function Following Total Hip Replacement? Podium, AAHKS

11/7/2011.

371.[372.] Elkins JM, Pedersen DR, Singh B, Yack HJ, Callaghan JJ, Brown TD. Dislocation in the

Morbidly Obese Total Hip Patient. 35th Annual Meeting of the American Society of

Biomechanics, August 18–21, 2011, Long Beach, California. Podium presentation, Orthopedics

Session

372.[373.] Elkins JM, Brown TD, Pedersen DR, Callaghan JJ. Advanced Fracture Analysis of 36-mm

Alumina Total Hip Bearings. Closed 2011 Scientific Meeting of the Hip Society. September 22-

24, 2011. New Albany, Ohio

373.[374.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Bone-on-Bone vs. Implant

Impingement in Large Diameter Total Hips. 58th Annual Meeting of the Orthopaedic Research

Society, February 4-7, San Francisco, California.

374.[375.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Toward Optimizing Orientation in

Metal-on-Metal Total Hips: Balancing Competing Considerations. 58th Annual Meeting of the

Orthopaedic Research Society, February 4-7, San Francisco, California.

375.[376.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Edge-Scraping Wear in Metal-on-Metal

Total Hips. 58th Annual Meeting of the Orthopaedic Research Society, February 4-7, San


376.[377.] Elkins JM, Liu X, Pedersen DR, Callaghan JJ, Brown TD. Computational Fracture Analysis

of Ceramic-on-Ceramic Total Hip Liners. 58th Annual Meeting of the Orthopaedic Research

Society, February 4-7, San Francisco, California.

377.[378.] Thomas Brown, PhD; Jacob Elkins, MS; Douglas Pedersen, PhD, John Callaghan, MD.

Impingement and Dislocation in Total Hip Arthroplasty: Mechanisms and Consequences.

Kappa Delta/OREF Clinical Research Award Paper. Combined 2012 Annual Meetings of the

Orthopaedic Research Society and the American Academy of Orthopaedic Surgeons, San

Francisco, CA. February 4-11, 2012

378.[379.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Balancing Competing Considerations

for Optimal Orientation in 36-mm Metal-on-Metal Total Hips. The 2012 American Academy of

Orthopaedic Surgeons (AAOS) Annual Meeting. February 7-11, 2012, San Francisco,

California. Podium Presentation. Paper #311

71


379.[380.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Dislocation Risk in Morbidly Obese

Total Hip Patients. 30th Annual Meeting of Mid-America Orthopaedic Association. April 18-22,

2012. Bonita Springs, Florida.

380.[381.] Takenaga RK, Bedard NA, Liu SS, Klaassen AL, Pedersen DR, Callaghan JJ. Cementless

Total Hip Arthroplasty in Patients Age 50 and Under at Minimum 10 year Follow-Up: What Can

Be Learned Concerning Durability of the Construct? Annual Meeting of the Mid-America

Orthopaedic Society, Bonita Springs, FA. April 18-22, 2012. 2012 E.W. Johnson, Jr. MD Physician in Training Award.

381.[382.] Takenaga RK, Bedard NA, Liu SS, Klaassen AL, Pedersen DR, Callaghan JJ. Do We

Need Pedometer Data to Differentiate Long-Term Function Following Total Hip Replacement?

Annual Meeting of the Mid-America Orthopaedic Society, Bonita Springs, FA. April 18-22, 2012.

382.[383.] Teusink MJ, Callaghan K, Klocke N, Pedersen DR, Johnston RC, Callaghan JJ. Femoral

Remodeling Around Well-Fixed Cemented Charnley Total Hip Arthroplasty: A Minimum 20-year

Follow-Up Study. Annual Meeting of the Mid-America Orthopaedic Society, Bonita Springs, FA.

April 18-22, 2012.

383.[384.] Pedersen DR. Acute Articular Cartilage Changes Following ACL injury: The T1 qMRI

Perspective. The ABC Fellows program, UI Sports Medicine, June 9, 2012.

384.[385.] Pedersen DR, Martin JA, Klocke NF, Thedens DR, Williams GL, Amendola A. Biopsies

and Imaging at ACL Reconstruction. Combined Osteoarthritis Initiative Imaging/ OARSI

Biomarkers workshop, July 12-14, 2012, Hilton Head, SC.

385.[386.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Expedited computational analysis of

fracture of ceramic THA liners: Obesity and stripe wear considerations. The 2012 American

Society of Biomechanics Annual Meeting. August 17th, 2012, Gainesville, Florida. Podium

presentation: Computational Modeling.

386.[387.] Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Biomechanical principles of failure in

total hip arthroplasty. The ASB Young Scientist Award Presentation. The 2012 American

Society of Biomechanics Annual Meeting. August 17th, 2012, Gainesville, Florida.

387.[388.] Callaghan JJ, Takenaga RK, Bedard NA, Pedersen DR. Long Term Follow-Up Of

Cementless THA For The Treatment Of Osteonecrosis: Have We Improved Compared To

Cemented THA? Closed Meeting of The Hip Society, September 13-15, 2012, Mayo Clinics,

Rochester, MN.

388.[389.] Johnston RC, Teusink MJ, Pedersen DR, Callaghan JJ. Femoral Remodeling Around

Well-Fixed Cemented Charnley Total Hip Arthroplasty: A Minimum Twenty Year Follow-Up 72


Study. Closed Meeting of The Hip Society, September 13-15, 2012, Mayo Clinics, Rochester,

MN.

389.[390.] D.R. Pedersen, J.A. Martin, D.R. Thedens, N.F. Klocke, N.H. Roberts, J.E. Goetz, A.

Amendola. Imaging Biopsy Composition at ACL Reconstruction. ORS 2013. – accepted

390.[391.] Daniel R Thedens, Casey P Johnson, James A Martin, Thomas E Baer, Vincent A

Magnotta, and Douglas R Pedersen. SNR Considerations for Quantitative T1ρ Imaging. ISMRM

2013

391.[392.] Daniel R Thedens, Casey P Johnson, James A Martin, Thomas E Baer, Vincent A

Magnotta, and Douglas R Pedersen. SNR Considerations for Quantitative T1ρ Imaging. OARSI

2013

Review of Manuscripts

Journal of Biomechanics, Journal of Biomechanical Engineering, Journal of Bone and Joint Surgery, Journal of Orthopaedic Research, Computer Methods in Biomechanics and Biomedical Engineering, Clinical Orthopaedics and Related and Research, Journal of Medical Engineering and Physics, Annals of Biomedical Engineering, Journal of Engineering in Medicine, Journal of Orthopedic Surgery and Research, Journal of Medical Devices, Orthopedic Research and Reviews

Review of Proposals

Arthritis Research CampaignNational Institutes of Health (NIH) Orthopaedic (SBIR/STTR) NIH OSR 3 times/year 2010-2013

Theses

A Finite Element Analysis of Acetabular Reconstruction. Masters Thesis, Mechanical Engineering, The University of Iowa, 1983.

MRI-Based Finite Element Models of Surgically Achieved Fibular Graft Placement for Osteonecrosis of the Femoral Head. PhD Dissertation, Biomedical Engineering, The University of Iowa, 1998.

Books, Chapters, Reports, and MiscellaneousThedens DR, Martin JA, Pedersen DR. (2007) Magnetic Resonance Imaging of Cartilage: New Imaging and Clinical Approaches. In J. Buckwalter, M. Lotz and J.-F. Stoltz (Eds.) OA, Inflammation and Degradation: A Continuum, Volume 70: Biomedical and Health Research, pp. 239–253. Fairfax, VA: IOP Press.

Areas of Research Interest

Biomedical Engineering and Orthopaedic BiomechanicsLong-term follow-up of total joint replacement (Hip, Knee, Ankle)Assessment of natural bone-preserving treatments to postpone/eliminate need for total joint replacementQuantified measures of natural bone morphology histories of normal and affected joints

73


Current Projects

Kinematics and Biomechanics of Hip DislocationContact Biomechanics of Articular JointsBiomechanics of Hip and Knee ReconstructionLong-term follow-up Clinical Studies/Wear DatabaseCartilage-specific MRI and injury severity assessmentDigital Histology

Grants Received (Ongoing or Completed During the Last 3 Years)

Innovations to Assess and Forestall Post-Traumatic Osteoarthritis – NIH 2 P50 AR055533-0609/01/12-08/31/17, $7,327,573 Total CostsJoseph A. Buckwalter, M.D., CORT DirectorThomas D. Brown, Ph.D., CORT Associate-Director

Project 2: Piloting Treatments and Diagnostic Tools for Post-Traumatic OA in Vivo09/01/12-08/31/17, $1,854,097 Total CostsDouglas R. Pedersen, Ph.D., Principal InvestigatorAnnunziato Amendola, M.D., InvestigatorDouglas C. Fredericks, InvestigatorJames A. Martin Ph.D., InvestigatorTodd McKinley, M.D., InvestigatorDaniel Thedens, Ph.D., InvestigatorYuki Tochigi, Ph.D., M.D., Investigator

Cartilage-Specific MRI Assessment of KineSpring Performance – Moximed SOAR US Pilot IDE Study12/12/12-12/12/15Principal Investigator

Non-Surgical Treatment of Arthrofibrosis – U.S. Department of Defense07/01/14-06/30/15 $1,084,233 Total CostsJames Martin, Ph.D., Principal InvestigatorAnnunziato Amendola, M.D., Douglas Fredericks, Jessica Goetz, Ph.D., Douglas Pedersen, Ph.D., Edward Sander, Ph.D., Investigators

Intra-articular Lubricin Gene Therapy for Post-Traumatic Arthritis – U.S. Department of Defense07/01/14-06/30/15 $735,776 Total CostsJames Martin, Ph.D., Principal InvestigatorDoug Fredericks, Douglas Pedersen, Ph.D., Prem Ramakrishnan, Ph.D., Hongjun Zheng, Ph.D., Investigators

New Approaches to Assess and Forestall Osteoarthritis in Injured Joints—NIH 5 P50 AR05553309/10/07–08/31/2012, $8,222,427 Total CostsJoseph A. Buckwalter, M.D., CORT DirectorThomas D. Brown, Ph.D., CORT Associate-Director

74


Project 3: Validation and Application of MRI Biomarkers in Assessing Articular Cartilage Health09/10/07–08/31/2012, $1,081,167 Total CostsDouglas R. Pedersen, Ph.D., Principal InvestigatorAnnunziato Amendola, M.D., Co-Principal InvestigatorJames A. Martin, Ph.D., Daniel R. Thedens, Glenn Williams, Ph.D., Investigators

Biomechanics of Total Hip Impingement & Dislocation—Department of Veterans Affairs10/01/07–09/30/2011, $549,500 Total CostsJohn J. Callaghan, M.D., Principal InvestigatorThomas D. Brown, Ph.D., H. John Yack, Ph.D., Co-InvestigatorsDouglas R. Pedersen, Ph.D., Investigator

Wear Analysis of Intervertebral Disc Replacements—NIH 5 R01 AR052653 09/22/2005–09/29/2011, $2,496,667 Total CostsThomas D. Brown, Ph.D., Principal InvestigatorJohn Fisher, Ph.D., Richard M. Hall, Ph.D., Eileen Ingham, Ph.D., Heinz-Michael Mayer, M.D., Ph.D., Sergio A. Mendoza, M.D., Douglas R. Pedersen, Ph.D., Co-Investigators

Implant/Construct Interactions in the Biomechanics of Total Hip Dislocation—NIH 1 R01 AR05355309/25/2006–08/31/2011, $1,207,471 Total CostsThomas D. Brown, Ph.D., Principal InvestigatorJohn J. Callaghan, M.D., Jeffrey A. Weiss, Ph.D., Co-InvestigatorsDouglas R. Pedersen, Ph.D., Melvin J. Rudert, Ph.D., Yuki Tochigi, M.D., Ph.D., Investigators

Submitted Research Proposals:

Integrating Biology and Mechanics on the Path to OA – NIH R0109/01/14-08/31/18 Total Requested Funds $1,617,217Role: Principal Investigator

Presentations1. Crowninshield RD, Brand RA, Johnston RC, Pedersen DR. A Comparison of Steel and Titanium

Femoral Components in Total Hip Arthroplasty. Paper presented at: Orthopaedic Research

Society; February, 1980; Atlanta, Georgia.

2. Crowninshield RD, Brand RA, Johnston RC, Pedersen DR. A Comparison of Steel and Titanium

Femoral Components in Total Hip Arthroplasty. Paper presented at: Fifth Annual College of

Medicine Research Day; April 17–18, 1980; The University of Iowa Hospitals, Iowa City, Iowa.

3. Crowninshield RD, Brand RA, Johnston RC, Pedersen DR. An Analysis of Femoral Prosthesis

Design - The Effects on Proximal Femur Loading. Paper presented at: Ninth Open Scientific

Meeting of the Hip Society; February, 1981; Las Vegas, Nevada.

75


4. Pedersen DR, Crowninshield RD, Brand RA. An Analysis of Acetabular Component Design.

Paper presented at: 27th Annual Meeting of the Orthopaedic Research Society; February, 1981;

Las Vegas, Nevada.

5. Pedersen DR, Crowninshield RD, Brand RA. An Analysis of Acetabular Component Design.

Paper presented at: Sixth Annual College of Medicine Research Day; April, 1981; The


6. Brand RA, Crowninshield RD, Pedersen DR. Architecture of the Periacetabular Trabecular

Bone. Paper presented at: 28th Annual Meeting of the Orthopaedic Research Society; January

19–21, 1982; New Orleans, Louisiana.

7. Brand RA, Crowninshield RD, Pedersen DR, Gabel RH. Hip Forces in Activities of Daily Living.

Paper presented at: Seventh Annual College of Medicine Research Day; April, 1982; The


8. Crowninshield RD, Murase K, Pedersen DR. An Analysis of Tibial Component Design in Total

Knee Arthroplasty. Paper presented at: 28th Annual Meeting of the Orthopaedic Research

Society; January 19–21, 1982; New Orleans, Louisiana.

9. Murase K, Tsukahara S, Saito S, Crowninshield RD, Pedersen DR. A Finite Element Analysis of

Tibial Component Design in Total Knee Arthroplasty. Paper presented at: 8th International

Congress of Biomechanics, 1982; Nagoya, Japan.

10. Blair WF, Gabel RH, Pedersen DR, Greene ER. A Method for Programmed, Rapid Range

Control Advance with the 20 MHz PUDVM. Paper presented at: Rocky Mountain Bioengineering

Symposium; April, 1983; Rochester, Minnesota.

11. Blair WF, Pedersen DR. The 20MHz Pulsed Ultrasonic Doppler Velocity Meter: A Method for

Assessing Flow in Small Vessels. Paper presented at: Seventh Annual Conference of the

American Society of Biomechanics; September 28–30, 1983; Rochester, Minnesota.

12. Blair WF, Pedersen DR, Joos K, Bondi D. A Hemodynamic Comparison of Interrupted and

Continuous Microarteriorraphy Techniques. Paper presented at: American Association of Hand

Surgery; October 30, 1983; Dallas, Texas.

13. Brand RA, van Krieken FM, Pedersen DR, Crowninshield RD. Prediction of Muscle and Joint

Loads After Segmental Femur Replacement for Osteosarcoma. Paper presented at: Eighth

Annual College of Medicine Research Day; April 21–22, 1983; University of Iowa, Iowa City,

Iowa.

76


14. Crowninshield RD, Pedersen DR, Brand RA, Johnston RC. Analytical Support for Acetabular

Component Metal Backing. Paper presented at: Eleventh Open Scientific Meeting of the Hip

Society; March 9, 1983; Anaheim, California.

15. Crowninshield RD, Johnston RC, Brand RA, Pedersen DR, Wilson MA, Tolbert JR. An

Engineering Analysis of Total Hip Component Design. Paper presented at: 50th Annual Meeting

of the American Academy of Orthopaedic Surgeons; March 10–15, 1983; Anaheim, California.

16. Pedersen DR, Brand RA. Computer Modeling of Proximal Femur Osteotomies. Paper presented

at: Seventh Annual Conference of the American Society of Biomechanics; September 28–30,

1983; Rochester, Minnesota.

17. van Krieken FM, Pedersen DR, Brand RA, Crowninshield RD. Hip and Knee Muscle and Joint

Force Predictions in Simulated Tumor Resections. Paper presented at: 29th Annual Meeting of

the Orthopaedic Research Society; March 8–10, 1983; Anaheim, California.

18. Brand RA, Pedersen DR. Computer Modeling of Surgery and a Consideration of the Mechanical

Effects of Proximal Femoral Osteotomies. Paper presented at: Twelfth Open Scientific Meeting

of The Hip Society; February, 1984; Atlanta, Georgia.

19. Brand RA, Pedersen DR. Computer Modeling of Proximal Femoral Osteotomies. Paper

presented at: Ninth Annual College of Medicine Research Day; April 26–27, 1984; The


20. Brand RA, Pedersen DR. Computer Modeling of Surgery and a Consideration of the Mechanical

Effects of Proximal Femoral Osteotomies. Paper presented at: Fourth Meeting of the European

Society of Biomechanics; September 23–26, 1984; Davos, Switzerland.

21. Brown TD, Gabel RH, Pedersen DR, Bell LD, Blair WF. Some Characteristics of Laminar Flow

Velocity Spectra Detected by a 20 MHz Pulsed Ultrasound Doppler. Paper presented at: Eighth

Annual Meeting of the American Society of Biomechanics; October 3–5, 1984; Tucson, Arizona.

22. Pedersen DR, Brand RA. Changes in Three-Dimensional Muscle Geometry as a Result of

Femoral Intertrochanteric Osteotomies. Paper presented at: 30th Annual Meeting of the

Orthopaedic Research Society; February 6–9, 1984; Atlanta, Georgia.

23. Pedersen DR, Brown TD, Singerman RJ. Quantitation of Fuji Prescale Film Pressures Using

Digital Image Scanning. Paper presented at: Eighth Annual Meeting of the American Society of

Biomechanics; October 3–5, 1984; Tucson, Arizona.

24. Brown TD, Gabel RH, Bell LD, Pedersen DR, Blair WF. Performance Characteristics of a 20

MHz Pulsed Ultrasound Doppler Velocimeter for Studies of Microvascular Hemodynamics.

77


Paper presented at: American Society of Mechanical Engineers Biomechanics Symposium;

June 24–26, 1985; Albuquerque, New Mexico.

25. Brown TD, Pedersen DR, Radin EL, Rose RM. Mechanical Consequences of Fibrous

Membrane Formation at the Bone/Cement Interface in Proximal Femoral Arthroplasty. Paper

presented at: Ninth Annual Meeting of the American Society of Biomechanics; October 2–4,

1985; Ann Arbor, Michigan.

26. Callaghan JJ, Brand RA, Pedersen DR. Hip Arthrodesis. A Long-Term Follow-Up. Paper

presented at: 52nd Annual Meeting of the American Academy of Orthopaedic Surgeons;

January 26, 1985; Las Vegas, Nevada.

27. Singerman RJ, Pedersen DR, Brown TD. Quantitation of Fuji Prescale Film Pressures Using

Digital Image Scanning. Paper presented at: College of Medicine Research Day X; May 9–10,

1985; The University of Iowa , Iowa City, Iowa.

28. Brown TD, Pedersen DR, Radin EL, Rose RM. Global Mechanical Consequences of

Bone/Cement Interface Degradation in Proximal Femoral Arthroplasty. Paper presented at:

32nd Annual Meeting of the Orthopaedic Research Society; February 17–20, 1986; New

Orleans, Louisiana.

29. Brown TD, Pedersen DR, Singerman RJ. Load Transmission Through the Proximal Femur in

Early Childhood. Paper presented at: 32nd Annual Meeting of the Orthopaedic Research

Society; February 17–20, 1986; New Orleans, Louisiana.

30. Pedersen DR, Cheng CK, Brand RA. Muscle Force Estimations Using Nonlinear Programming.

Paper presented at: 32nd Annual Meeting of the Orthopaedic Research Society; February 17–

20, 1986; New Orleans, Louisiana.

31. Pedersen DR, Anderson DD, Singerman RJ, Brown TD. Prescale Film Pressure Quantification.

Paper presented at: 98th Session of the Iowa Academy of Science; April 25–26, 1986; Wartburg

College, Waverly, Iowa.

32. Vrahas MS, Brown TD, Andrews JG, Brand RA, Pedersen DR. In-vivo Measurements of

Passive Moments of the Human Hip. Paper presented at: Combined meeting of the North

American Congress on Biomechanics, the Tenth Annual Conference of The American Society

of Biomechanics, and the Fourth Biannual Conference of the Canadian Society for

Biomechanics; August 25–27, 1986; Montreal, Canada.

33. Bell AL, Brand RA, Pedersen DR. Prediction of Hip Joint Center Location from External

Landmarks. Paper presented at: Eleventh Annual Conference of the American Society

Biomechanics; September, 1987; University of California at Davis.78


34. Brown TD, Anderson DD, Nepola JV, Singerman RJ, Pedersen DR, Brand RA. Contact Stress

Aberrations Following Imprecise Reduction of Intra-Articular Fractures. Paper presented at:

33rd Annual Meeting of the Orthopaedic Research Society; January 19–22, 1987; San


35. Feinberg JH, Pedersen DR, Brand RA. A Model to Predict the Muscular Anatomy of the Pelvic

Limbs of the Dog. Paper presented at: Eleventh Annual Conference of the American Society

Biomechanics; September, 1987; University of California at Davis.

36. Vrahas MS, Brown TD, Andrews JG, Brand RA, Pedersen DR. In Vivo Passive Moment

Measurements in the Human Hip. Paper presented at: 33rd Annual Meeting of the Orthopaedic

Research Society; January 19–22, 1987; San Francisco, California.

37. Vrahas MS, Brown TD, Andrews JG, Brand RA, Pedersen DR. In Vivo Passive Moment

Measurements in the Human Hip. Paper presented at: Twelfth Annual College of Medicine

Research Day; April 23–24, 1987; The University of Iowa, Iowa City, Iowa.


Landmarks. Paper presented at: 34th Annual Meeting of the Orthopaedic Research Society;

February 1–4, 1988; Atlanta, Georgia.

39. Brown TD, Rubin CT, Brand RA, Pedersen DR, Gray ML. Stress/Strain Field Correlations with

New Periosteal Bone Deposition Patterns in the Functionally Isolated Turkey Ulna. Paper

presented at: Sixth Meeting of the Society of Biomechanics; September 11–15, 1988; University

of Bristol, United Kingdom.


Limbs of the Dog. Paper presented at: 34th Annual Meeting of the Orthopaedic Research

Society; February 1–4, 1988; Atlanta, Georgia.


Limbs of the Dog. Paper presented at: College of Medicine Research Day XIII; April, 1988; The


42. Pedersen DR, Brown TD, Gray ML, Rubin CT, Brand RA. A Finite Element Analysis of Strain

Distributions in the Functionally Isolated Turkey Ulna. Paper presented at: 34th Annual Meeting

of the Orthopaedic Research Society; February 1–4, 1988; Atlanta, Georgia.

43. Pedersen DR, Feinberg JH, Brand RA. Modeling of Canine Pelvic Limb Muscular Anatomy.

Paper presented at: 100th Meeting of the Iowa Academy of Sciences; April, 1988; Ames, Iowa.

79



Landmarks. Paper presented at: College of Medicine Research Day XIII; April, 19, 1989; The


45. Bell AL, Pedersen DR, Brand RA. A Comparison of the Accuracy of Several Hip Joint Center

Location Prediction Methods. Paper presented at: 35th Annual Meeting of the Orthopaedic

Research Society; February 6–9, 1989; Las Vegas, Nevada.

46. Brand RA, Pedersen DR, Davy DT, Heiple KG, Goldberg VM. Comparison of Hip Joint Force

Calculations and Measurements in the Same Patient. Paper presented at: 35th Annual Meeting

of the Orthopaedic Research Society; February 6–9, 1989; Las Vegas, Nevada.

47. Brand RA, Pedersen DR, Davy DT, Heiple KG, Goldberg VM. Hip Force Calculations and

Measurements in the Same Patient. Paper presented at: 13th Annual Meeting of the American

Society of Biomechanics; August 23–25, 1989; University of Vermont, Burlington, Vermont.

48. Pedersen DR, Brand RA. Knee Joint Moment Assumptions Affect Hip Joint Force Calculations.

Paper presented at: 1989 Winter Annual Meeting of the American Society of Mechanical

Engineers; December 10–15, 1989; San Francisco, California.

49. Pierotti SE, Pedersen DR, Brand RA. Are Leg EMG Profiles Symmetrical? Paper presented at:

35th Annual Meeting of the Orthopaedic Research Society; February 6–9, 1989; Las Vegas,

Nevada.

50. Brand RA, Pedersen DR, Johnston RC. Hip Forces Resulting from Altered Hip Joint Center

Location - Revisited. Paper presented at: The Hip Society 1990 Summer Meeting; September

21–22, 1990; Scottsdale, Arizona.

51. Brown TD, Rubin CT, Brand RA, Pedersen DR. A Complementary Experimental/Analytic Model

to Explore Bone Remodeling. Paper presented at: European Society of Biomechanics,

Biomechanics of Fracture Healing Workshop; July 12–14, 1990; Reisensurg Castle and the

University of Ulm, Ulm, West Germany.

52. Pedersen DR, Brown TD, Brand RA. Bone Ingrowth Stress Distributons Within a Novel

Prosthesis Anchorage Layer. Paper presented at: 36th Annual Meeting of the Orthopaedic

Research Society; February 5–8, 1990; New Orleans, Louisiana.

53. Pedersen DR, Brown TD, Brand RA. Two-Dimensional FEM Micromechanics of Bone Ingrowing

a Geometrically Regular Woven Titanium Net. Paper presented at: 102nd Session of the Iowa

Academy of Science; April 20–21, 1990; Drake University, Des Moines, Iowa.

80


54. Brown TD, Baker KJ, Pedersen DR, Brand RA. Structural Aspects of Femoral Head

Osteonecrosis. Paper presented at: Mechanics Computing in 1990's and Beyond, The

American Society of Civil Engineers Conference; May 20–22, 1991; Columbus, Ohio.

55. Brown TD, Pedersen DR, Baker KJ, Brand RA. Mechanical Effects of Coring and Bone Grafting

in Segmental Femoral Head Osteonecrosis. Paper presented at: 38th Annual Meeting of the

Orthopaedic Research Society; February 17–20, 1992; Washington, D.C.

56. Brown TD, Pedersen DR, Rubin CT, Brand RA. Mechanical Parameters Initiating Periosteal

Remodeling: A Combined Experimental and Analytical Approach. Paper presented at: 21st

Annual Meeting and Exhibition of the American Association for Dental Research; March 11–14,

1992; Boston, Massachusetts.

57. Brown TD, Pedersen DR, Baker KJ, Brand RA. Mechanical Consequences of Core Drilling and

Bone Grafting in Femoral Head Necrosis. Paper presented at: 1992 Summer Meeting of the Hip

Society; September 10–12, 1992; Indianapolis, Indiana.

58. Brown TD, Baker KJ, Pedersen DR, Brand RA. Biomechanics of Femoral Head Aseptic

Necrosis. Paper presented at: 1992 International Symposium Biomedical Engineering in the

21st Century; September 23–26, 1992; Taipei, Taiwan, R.O.C.

59. Pedersen DR, Brown TD, Banes AJ. Mechanical Behavior of a New Sustratum for Strain-

Mediated Cell Culture Experiments. Paper presented at: Second North American Congress on

Biomechanics; August 24–28, 1992; Chicago, Illinois.

60. Adams DJ, Pedersen DR, Rudert MJ, Brand RA, Rubin CT, Brown TD. Geometric Symmetry of

the Turkey Ulna. Paper presented at: 17th Annual Meeting of the American Society of

Biomechanics; October 21–23, 1993; Iowa City, Iowa.

61. Banes AJ, Brigman B, Tsuzaki M, et al. Role of Mechanical Challenge in Tendon Cell 2nd

Messenger Signalling and Mitogenic Response to Growth Factors. Paper presented at:

International Society for Fracture Repair; May 12–15, 1993; Reisensburg Castle, Germany.

62. Callaghan JJ, Pedersen DR, Olejniczak JP, Goetz DD, Johnston RC. Radiologic Wear

Measurements in Five Cohorts of Total Hip Replacements. Paper presented at: International

Hip Society; August, 1993; Bankok, Thailand.

63. Callaghan JJ, Pedersen DR, Olejniczak JP, Goetz DD, Johnston RC. Radiologic Wear

Measurements in Five Cohorts of Total Hip Replacements. Paper presented at: Inaugural

Richard C. Johnston Lectureship in Orthopaedics; October, 1993; The University of Iowa, Iowa

City, Iowa.

81


64. Hasler EM, Herzog W, Ronsky JL, et al. Comparison Between Theoretical and Measured

Contact Forces in the Cat Patellofemoral Joint. Paper presented at: XIVth International Society

of Biomechanics Congress; July 4–8, 1993; Paris, France.

65. MacKenzie JR, Callaghan JJ, Pedersen DR, Brown TD. Areas of Contact and Extent of Gaps

with Implantation of Oversized Acetabular Components in Total Hip Arthroplasty. Paper

presented at: Twenty-First Open Scientific Meeting of The Hip Society; February 21, 1993; San


66. Meyer SA, Brown TD, Pedersen DR, Albright JP. The Effects of Patella Infera on Patellofemoral

Contact Stress. Paper presented at: 39th Annual Meeting of the Orthopaedic Research Society;


67. Pedersen DR, Bottlang M, Brown TD, Banes AJ. Hyperelastic Constitutive Properties of

Polydimethyl Siloxane Cell Culture Membranes. Paper presented at: 1993 ASME Winter Annual

Meeting; November 28–December 3, 1993; New Orleans, LA.

68. Adams DJ, Pedersen DR, Brown TD, Rubin CT, Brand RA. Formal Three-Dimensional

Contralateral (A)Symmetry of the Turkey Ulna. Paper presented at: 40th Annual Meeting of the

Orthopaedic Research Society; February 21–24, 1994; New Orleans, LA.

69. Adams DJ, Pedersen DR, Brown TD, Rubin CT, Brand RA. Formal Three-Dimensional

Contralateral (A)Symmetry of the Turkey Ulna. Paper presented at: College of Medicine

Research Day XIX; April 14–15, 1994; The University of Iowa, Iowa City, Iowa.

70. Brown TD, Adams DJ, Spirt AA, Pedersen DR, Rubin CT, Brand RA. Toward Realistic Finite

Element Modelling of Adaptive Bone Remodelling in the Functionally Isolated Turkey Ulna.

Paper presented at: Department of Mechanical Engineering; October 25, 1994; University of

Pittsburgh, Pittsburgh, Pennsylvania.

71. Brown TD, Maxian TA, Pedersen DR, Callaghan JJ. Sliding-Distance-Coupled Finite Element

Polyethylene Wear Predictions in Total Hip Arthroplasty. Contact/Impact Biomechanics. Paper

presented at: Application of High Performance Computing in Engineering; October 21–22, 1994;

Pittsburgh Supercomputing Center, Pittsburgh, Pennsylvania.

72. Callaghan JJ, Pedersen DR, Olejniczak JP, Goetz DD, Johnston RC. Radiographic Wear

Measurements in Five Cohorts of Total Hip Replacements. Paper presented at: 40th Annual

Meeting of the Orthopaedic Research Society; February 21–24, 1994; New Orleans, LA.

73. Callaghan JJ, Kim YS, Brown TD, Pedersen DR, Johnston RC. Concerns and Improvements

with Cementless Metal Backed Acetabular Components. Paper presented at: Twenty-Second

Open Scientific Meeting of The Hip Society; February 27, 1994; New Orleans, LA.82


74. Hasler EM, Herzog W, Ronsky JL, Pedersen DR, Brown TD. Comparison of Theoretically

Calculated and Measured Patellofemoral Contact Forces in the Cat Knee Joint. Paper

presented at: Canadian Orthopaedic Research Society; June 12–16, 1994; Winnipeg, Manitoba,

Canada.

75. Kim YS, Brown TD, Pedersen DR, Callaghan JJ. Reamed Surface Topology and Component

Seating in Press-Fit Cementless Acetabular Fixation. Paper presented at: Second World

Congress of Biomechanics; July 10–15, 1994; Amsterdam, The Netherlands.

76. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Finite Element Modeling of Polyethylene

Stresses Using Industrial Tolerances for Femoral Head Sizes in Total Hip Replacements. Paper

presented at: 18th Annual Meeting of the American Society of Biomechanics; October 13–15,

1994; Columbus, Ohio.

77. Meyer SA, Brown TD, Pedersen DR, Albright JP. Influence of Patella Infera on Patellofemoral

Contact Stress. Paper presented at: 61st Annual Meeting of the American Academy of

Orthopaedic Surgeons; February 24–March 1, 1994; New Orleans, LA.

78. Pedersen DR. Rate of In-Vivo Polyethylene Wear For Five Different Acetabular Components

Used Over A Five to Twenty-Two Year Period. Paper presented at: ASTM Committee F-4

workshop on Ultra High Molecular Polyethylene Materials; May, 1994; Montreal, Canada.

79. Pedersen DR, Callaghan JJ, Olejniczak JP, Johnston RC. In-Vivo Polyethylene Wear Rates in

Five Different Acetabular Components Used Over a Five to Twenty-Two Year Period. Paper

presented at: BioEngineering Division PhD Competition at 1994 International Mechanical

Engineering Congress and Exposition, ASME; November 6–11, 1994; Chicago, Illinois.

80. Ricos-Furio V, Pedersen DR, Brown TD, et al. Effects of Constitutive and Geometric Modelling

Simplifications on Stresses Computed in the Turkey Ulna. Paper presented at: 1994

International Mechanical Engineering Congress and Exposition, BioEngineering Division;

November 6–11, 1994; Chicago, Illinois.

81. Ronsky JL, Herzog W, Pedersen DR, Hasler EM, Brown TD. The Influence of Joint Alignment,

Joint Stability and Muscular Force on in-situ Patellofemoral Joint. Paper presented at: Canadian

Orthopaedic Research Society; June 12–16, 1994; Winnipeg, Manitoba, Canada.

82. Thornburg LE, Brown TD, Pedersen DR, Marsh JL, Brand RA. Acetabular Contact Pressures in

a Cadaveric Transverse Fracture Model. Paper presented at: Surgery of the Pelvis and

Acetabulum: The Second International Consensus; October 21–27, 1994; Pittsburgh,

Pennsylvania.

83


83. Kim YS, Brown TD, Pedersen DR, Callaghan JJ. Seating of Hemispherical vs Dual Radius

Components in Press-Fit Cementless Acetabular Fixation. Paper presented at: 41st Annual

Meeting of the Orthopaedic Research Society; February 13–16, 1995; Orlando, Florida.

84. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. A Sliding-Distance-Coupled Finite Element

Model for Polyethylene Wear in THA. Paper presented at: 41st Annual Meeting of the


85. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Variability of Polyethylene Contact Stress

Due to Current Industrial Tolerances for Femoral Head Sizes. Paper presented at: 41st Annual

Meeting of the Orthopaedic Research Society; February 13–16, 1995; Orlando, Florida.

86. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Variability of Polyethylene Contact Stress

Due to Current Industrial Tolerances for Femoral Head Sizes. Paper presented at: College of

Medicine Research Day XIX; April 20–21, 1995; The University of Iowa, Iowa City, Iowa.

87. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Femoral Head Containment vs

Polyethylene Stress Concentration in THA Extended Lip Liners. Paper presented at: 1995

ASME Summer Meeting, 1995.

88. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Adaptive Remeshing Behavior of a Sliding-

Distance-Coupled Contact Model of THA Wear. Paper presented at: Advances in

Bioengineering, ASME Winter Annual Meeting; November 12–17, 1995; San Francisco, CA.

89. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Adaptive Remeshing Behavor of a Sliding-

Distance-Coupled Contact Model of THA Wear. Paper presented at: 1995 Advances in

Bioengineering, 1995.

90. Pedersen DR, Brown TD, Banes AJ. Nutrient Medium Reactive Inertial Stresses During Cell

Culture Mechanostimulus. Paper presented at: 41st Annual Meeting of the Orthopaedic

Research Society; February 13–16, 1995; Orlando, Florida.

91. Pedersen DR. Polyethylene Wear Rates for Five Different In Vivo Acetabular Components Used

ofer a Five to Twenty-two Year Period. Paper presented at: 41st Annual Meeting of the


92. Ronsky JL, Herzog W, Hasler EM, Brown TD, Pedersen DR. Contact Stress Distributions on In-

Situ Patellofemoral Joint Cartilage Contact. Paper presented at: Bioengineering Conference,

ASME Summer Meeting, 1995.

93. Thornburg LE, Brown TD, Pedersen DR, Marsh JL, Brand RA. Three-Dimensional Contact

Stress Distributions for Acetabular Dome Fractures: A Re-Fracture Model to Address Site

84


Specificity. Paper presented at: 41st Annual Meeting of the Orthopaedic Research Society;

February 13–16, 1995; Orlando, Florida.

94. Brown TD, Pedersen DR, Maxian TA, Callaghan JJ. Determination of Directional Counterface

Motion as a Factor in THA Wear Simulation. Paper presented at: 42nd Annual Meeting of the

Orthopaedic Research Society, Workshop on Surface Damage in Total Joint Replacements:

Kinemetic Issues; February 18–22, 1996; Atlanta, GA.

95. Brown TD, Rudert MJ, Pedersen DR, Baker KJ, Sakamoto J, Brand RA. Considerations for

Computer Assisted Planning of Head-Preserving Surgery in Femoral Head Osteonecrosis.

Paper presented at: Corporate Affiliates Workshop Computer-Guided Surgery and Robotics in

Orthopaedics at 42nd Annual Meeting of the Orthopaedic Research Society; February 18–22,

1996; Atlanta, Georgia.

96. Brown TD, Pedersen DR, Maxian TA, Callaghan JJ. Determination of Directional Counterface

Motion as a Factor in THA Wear Simulation. Paper presented at: 42nd Annual Meeting of the

Orthopaedic Research Society, Workshop Surface Damage in Total Joint Replacements:

Kinematic Issues; February 18–22, 1996; Atlanta, Georgia.

97. Brown TD, Bottlang M, Pedersen DR, Banes AJ. Reactive Fluid Stresses Due to Nutrient

Medium Motion in a Major Class of Culture Mechanostimulus Systems. Paper presented at:

1996 Gordon Research Conference on Bioengineering and Orthopaedic Sciences 9th Biennial

Meeting; July 28–August 2, 1996; Proctor Academy, Andover, NH.

98. Brown TD, Maxian TA, Pedersen DR, Callaghan JJ. A New Computer Model to Study Wear.

Paper presented at: Harvard Hip Course; October 2–5, 1996; Boston, MA.

99. Brown TD, Maxian TA, Pedersen DR, Callaghan JJ. Distance Traveled Versus Load Per Unit

Area. Paper presented at: Harvard Hip Course; October 2–5, 1996; Boston, MA.

100. Brown TD, Thornburg LE, Pedersen DR, Marsh JL, Brand RA. Acetabular Contact Pressures in

a Cadaveric Fracture Model. Paper presented at: Surgery of the Pelvis and Acetabulum: The

Third International Consensus; October 5–11, 1996; Pittsburg, PA.

101. Malkani A, Voor M, Rennirt G, Helfet D, Pedersen DR, Brown TD. Increased Peak Contact

Pressure Following Incongruent Reduction of Transverse Acetabular Fractures. A Cadaveric

Model. Paper presented at: Orthopaedic Trauma Association 12th Annual Meeting; September

27–29, 1996; Boston, MA.

102. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Long-Term Polyethylene Wear Rates for

Total Hip Arthroplasty Determined by Adaptive Finite Element Modeling. Paper presented at:

85


42nd Annual Meeting of the Orthopaedic Research Society; February 18–22, 1996; Atlanta,

Georgia.

103. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Finite Element Modeling of Dislocation

Propensity in Total Hip Arthroplasty. Paper presented at: 42nd Annual Meeting of the

Orthopaedic Research Society; February 18–22, 1996; Atlanta, GA.

104. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Femoral Head Containment in Total Hip

Arthroplasty. Standard VS Extended Lip Liners. Paper presented at: 42nd Annual Meeting of

the Orthopaedic Research Society; February 18–22, 1996; Atlanta, GA.

105. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Three-Dimensional Sliding/Contact

Computational Simulation of Acetabular Wear in THA. Paper presented at: 24th Open Scientific

Meeting of The Hip Society/Second Combined Open Meeting of the Hip Society and AAHKS;

February 25, 1996; Atlanta, GA.

106. Brown TD, Pedersen DR, Bottlang M, Banes AJ. Fluid-Structure Interaction as a Determinant of

Nutrient Medium Reactive Stress in Mechanically Stimulated Cultures. Paper presented at: 43rd

Annual Meeting of the Orthopaedic Research Society; February 9–13, 1997; San Francisco,

CA.

107. Brown TD, Maxian TA, Pedersen DR, Callaghan JJ. Finite Element Studies of Bearing Surface

Wear in THA. Paper presented at: Twenty-ifth Open Scientific Meeting of theHip Society and the

Third Combined Open Meeting of the Hip Society and AAHKS; February 16, 1997; San

Francisco, CA.

108. Brown TD, Nieman JC, Pedersen DR, Callaghan JJ. Finite Element Model of Third Body Wear.

Paper presented at: The Hip Society Summer Meeting; September 11–13, 1997; New York, NY.

109. Emodi GJ, Takatsu T, Callaghan JJ, Brown T, D., Pedersen DR. The Effect of Surgically

Induced Parameters on Posterior Cruciate Ligament Function Following Total Knee

Arthrpolasty. Paper presented at: 43rd Annual Meeting of the Orthopaedic Research Society;

February 9–13, 1997; San Francisco, CA.

110. Hop JD, Callaghan JJ, Olejniczak JP, Pedersen DR, Brown TD, Johnston RC. An In Vivo Model

of Third Body Wear Contribution of Cable Debris Generation to Accelerated Polyethylene Wear

and Acetabular Component Loosening. Paper presented at: Twenty-Fifth Open Scientific

Meeting of the Hip Society and the Third Combined Open Meeting of the Hip Society and

AAHKS; February 16, 1997; San Francisco, CA.

111. Malkani AL, Voor MJ, Rennirt GW, Helfet DL, Pedersen DR, Brown TD. Increased Peak Contact

Pressure Following Incongruent Reduction of Transverse Acetabular Fractures: A Cadaveric 86


Model. Paper presented at: 64th Annual Meeting of the American Academy of Orthopaedic

Surgeons; February 13–17, 1997; San Francisco, CA.

112. Maxian TA, Brown TD, McKellop H, Lu B, Pedersen DR, Callaghan JJ. Direct Physical

Validation of a Finite Element Model of Polyethylene Wear in Total Hip Arthroplasty. Paper

presented at: 43rd Annual Meeting of the Orthopaedic Research Society; February 9–13, 1997;

San Francisco, CA.

113. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. A Computational Simulation of

Polyethylene Wear for Alternative Acetabular Component Fixation Modalities. Paper presented

at: 43rd Annual Meeting of the Orthopaedic Research Society; February 9–13, 1997; San

Francisco, CA.

114. Pedersen DR, Brown TD, Poggie RA. Finite Element Characterization of a Porous Tantalum

Material for Treatment of Avascular Necrosis. Paper presented at: 43rd Annual Meeting of the

Orthopaedic Research Society; February 9–13, 1997; San Francisco, CA.

115. Pedersen DR, Brown TD, Hillis SA, Callaghan JJ. Prediction of Long-Term Polyethelene Wear

in THA, Based on Early Wear Measurements Made Using Digital Image Analysis. Paper

presented at: 43rd Annual meeting of the Orthopaedic Research Society; February 9–13, 1997;

San Francisco, CA.

116. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. Experimental Validation of a Computational

Simulation of Dislocation in THA. Paper presented at: Twenty-First Annual Meeting of the

American Society of Biomechanics; September 24–27, 1997; Clemson, South Carolina.

117. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. Effects of Acetabular Component Lip Design

on Dislocation Resistance in THA. Paper presented at: ASME IMECE97 BED Meeting;

November 16–21, 1997; Dallas, Texas.

118. Banes AJ, Tsuzaki M, Yang X, et al. Equibiaxial Strain Activates AP-1 and CRE Transcription

Factors but Not NF-KB or SSRE and Upregulates CX43 mRNA in Tendon Cells In Vitro. Paper

presented at: 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998;

New Orleans, LA.

119. Banes AJ, Weinhold PS, Pedersen DR, et al. Cyclic Mechanical Load Increases DNA Synthesis

in Tendon Ex Vivo. Paper presented at: First Southeastern US Tissue Engineering Conference;

June 5, 1998; North Carolina Biotechnology Institute, Research Triangle Park, NC.

120. Banes AJ, Tsuzaki M, Yang X, et al. Equibiaxial Strain and Norepinephrine Activate CRE DNA

Binding Protein and Expression of Connexin 43. Paper presented at: Third World Congress of

Biomechanics; August 2–8, 1998; Hokkaido University, Sapporo, Japan.87


121. Brown TD, Pedersen DR, Vandenburgh HH. Nutrient Medium Reactive Stresses in a Cell

Culture Mechanostimulus Apparatus in which a Deformable Substratum is Tented by Vertical

Motions of an Underlying Central Post. Paper presented at: 44th Annual Meeting of the

Orthopaedic Research Society; March 16–19, 1998; New Orleans, LA.

122. Brown TD, Bottlang M, Pedersen DR, Banes AJ. Flow Field Visualization in Confirmation of a

Finite Element Model of Nutrient Medium Reactive Stress in a Pressure-Differential-Driven Cell

Culture Mechanostimulus System. Paper presented at: 44th Annual Meeting of the Orthopaedic

Research Society; March 16–19, 1998; New Orleans, LA.

123. Brown TD, Bottlang M, Pedersen DR, Banes AJ. Flow Field Visualization in Confirmation of a

Finite Element Model of Nutrient Medium Reactive Stress in a Pressure-Differential-Driven Cell

Culture Mechanostimulus System. Paper presented at: College of Medicine Research Week;

April 13–16, 1998; The University of Iowa, Iowa City, IA.

124. Brown TD, Neiman JC, Pedersen DR, Callaghan JJ. Third Body Wear Simulations in Total Hip

Replacement. Paper presented at: Fourth Biannual Johnston Lectureship in Hip Reconstruction;

October 16–17, 1998; Iowa City, Iowa.

125. Mavèiè B, Antoliè V, Brand RA, et al. Weight Bearing Area During Gait in Normal and Dysplastic

Human Hips. Paper presented at: Department of Orthopaedic Surgery; March, 1998; University

of Ljubljana, Ljubljana, Slovenia.

126. Nieman JC, Brown TD, Pedersen DR, Callaghan JJ. The Effects of Localized Regions of Head

Roughening on Variability of UHMWPE Wear in THA. Paper presented at: 44th Annual Meeting

of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, LA.

127. Otto JK, Brown TD, Heiner AD, Pedersen DR, Callaghan JJ. Characterization of the Dynamic

Response of a Piezoresistive Contact Stress Sensor. Paper presented at: 44th Annual Meeting

of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, LA.

128. Pedersen DR, Brown TD, Hillis SL, Callaghan JJ. Early Prediction of Long-Term Polyethylene

Wear in Total Hip Arthroplasty. Paper presented at: 44th Annual Meeting of the Orthopaedic


129. Pedersen DR, Brown TD, Hillis SL, Callaghan JJ. The Influence of 3rd Body Debris on In Vivo

Polyethylene Wear in Total Hip Arthroplasty. Paper presented at: 44th Annual Meeting of the


130. Pedersen DR, Brown TD, Callaghan JJ, Hillis SL. Quantitative Estimates of Long-Term

Polyethylene Wear in Total Hip Arthroplasty, Based on Early Wear Measurements Made Using

88


Digital Image Analysis. Paper presented at: 65th Annual Meeting of the American Academy of

Orthopaedic Surgeons; March 19–23, 1998; New Orleans, LA.

131. Pedersen DR, Brown TD, Hillis SL, Callaghan JJ. The Influence of 3rd Body Debris on In Vivo

Polyethylene Wear in Total Hip Arthroplasty. Paper presented at: College of Medicine Research

Week; April 13–16, 1998; The University of Iowa, Iowa City, IA.

132. Pedersen DR, Brown TD, Callaghan JJ. 3rd Body Acceleration of In-Vivo UHMWPE Wear.

Paper presented at: 1998 Annual Fall Meeting of the Biomedical Engineering Society; October

10–13, 1998; Cleveland, Ohio.

133. Scifert CF, Brown TD, Pedersen DR, Heiner AD, Callaghan JJ. Direct Physical Validation of a

Finite Element Model of Total Hip Dislocation. Paper presented at: 44th Annual Meeting of the


134. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. The Effects of Cup Tilt and Anteversion on

Dislocation Propensity in THA. Paper presented at: 44th Annual Meeting of the Orthopaedic


135. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. The Effects of Cup Tilt and Anteversion on

Dislocation Propensity in THA. Paper presented at: College of Medicine Research Week; April

13–16, 1998; University of Iowa, Iowa City, IA.

136. Brown TD, Gray ML, Pedersen DR. Nutrient Medium Reactive Stresses in a Cell Culture

Mechanostimulus System Delivering Homogeneous Equibiaxial Strains. Paper presented at:

45th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1999; Anaheim CA.

137. Brown TD, Banes AJ, Bottlang M, Pedersen DR. Nutrient Depth and Waveform Abruptness as

Determinants of Reactive Fluid Stresses in a Vacuum-Driven Cell Culture Mechanostimulus

System. Paper presented at: 45th Annual Meeting of the Orthopaedic Research Society;

February 1–4, 1999; Anaheim CA.

138. Brown TD, Pedersen DR, Heiner AD, Brand RA, Poggie RA, Christie MJ. Biomechanics of

Femoral Head Osteonecrosis: Natural History and Head-Preserving Surgical Management.

Paper presented at: 66th Annual Meeting of the American Academy of Orthopaedic Surgeons;

February 4–8, 1999; Anaheim CA.

139. Brown TD, Banes AJ, Bottlang M, Pedersen DR. Nutrient Depth and Waveform Abruptness as

Determinants of Reactive Fluid Stresses in a Vacuum-Driven Cell Culture Mechanostimulus

System. Paper presented at: College of Medicine Research Week; April 26–29, 1999; The

University of Iowa, Iowa City IA.

89


140. Callaghan JJ, Albright JC, Goetz DD, Olejniczak JP, Johnston RC, Pedersen DR. At Minimum

10 Year Follow-Up Do Cementless Acetabular Components Outperform Cemented Acetabular

Components. Paper presented at: 66th Annual Meeting of the American Academy of

Orthopaedic Surgeons; February 4–8, 1999; Anaheim CA.

141. Kralj-Igliè V, Igliè A, Brand RA, Pedersen DR. Contact Stress in the Hip Joint During Gait. Paper

presented at: 10th SICOT Trainees Meeting; September 15–18, 1999; Portorož, Slovenia.

142. Poggie RA, Brown TD, Pedersen DR. Finite Element Analysis of Peri-Acetabular Stress of

Cemented, Metal-Backed, and Porous Tantalum Backed Acetabular Components. Paper

presented at: 45th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1999;

Anaheim CA.

143. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. The Effect of Revision Cup Outer Diameter

on Impingement in Total Hip Arthroplasty. Paper presented at: 45th Annual Meeting of the

Orthopaedic Research Society; February 1–4, 1999; Anaheim CA.

144. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. Collar-Liner Hooking as a Serendipitous

Dislocation Check in Revision Total Hip Arthroplasty: A Finite Element "Discovery". Paper

presented at: XVIIth International Society of Biomechanics Congress; August 8–13, 1999;

Calgary, Canada.

145. Liu SS, Callaghan JJ, Goetz DD, Pedersen DR, Johnston RC. Durability of cemented matte

finish femoral components at 14 to 15 year follow-up. Paper presented at: 67th Annual Meeting

of the American Academy of Orthopaedic Surgeons; March 12–15, 2000; Orlando, Florida.

146. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Effects of cup anteversion/tilt orientation

on dislocation propensity for 22mm head-size total hip replacements. Paper presented at:

Midwest Graduate Students' Biomechanics Symposium (sponsored by the American Society of

Biomechanics); April 1, 2000; Normal, Illinois.

147. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Effects of cup anteversion/tilt orientation

on dislocation propensity for 22mm head-size total hip replacements. Paper presented at:

Graduate Student Senate Forum 2000, 2000; The University of Iowa, Iowa City, IA.

148. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Cup Anteversion/Tilt Effects on

Dislocation Propensity for Small Head Size Total Hip Replacements. Paper presented at: 24th

Annual Meeting of the American Society of Biomechanics; July 19–22, 2000; University of

Illinois at Chicago.

90


149. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Cup Anteversion/Tilt Effects on

Dislocation Propensity for Small-Head-Size Total Hip Replacements. Paper presented at: 24th

Annual Meeting of the American Society of Biomechanics; July 19–22, 2000; Chicago, IL.

150. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Comparison of Cup Anteversion and Tilt

Effects on Dislocation Propensity for Small-Head-Size Total Hip Replacements. Paper

presented at: International Mechanical Engineering Congress & Exposition, American Society of

Mechanical Engineers, Bioengineering Division; November 9, 2000; Orlando, FL.

151. Pedersen DR, Heiner AD, Brown TD. Local Mechanics of Subchondral Plate Engagement in

Structural Grafting for Osteonecrosis. Paper presented at: 46th Annual Meeting of the

Orthopaedic Research Society; March 12–15, 2000; Orlando, Florida.

152. Pedersen DR, Callaghan JJ, Heiner AD, Brown TD. Chi-aquare Testing of THA Wear Rate

Distribution Normality. Paper presented at: 46th Annual Meeting of the Orthopaedic Research

Society; March 12–15, 2000; Orlando, Florida.

153. Pedersen DR, Callaghan JJ, Heiner AD, Brown TD. Chi-aquare Testing of THA Wear Rate

Distribution Normality. Paper presented at: College of Medicine Research Days XXV; April 25,

2000; The University of Iowa, Iowa City. IA.

154. Pedersen DR, Yack HJ, Wahi R, Callaghan JJ, Brown TD. Kinematics of Maneuvers Commonly

Responsible for Hip Dislocation. Paper presented at: 24th Annual Meeting of the American

Society of Biomechanics; July 19–22, 2000; University of Illinois at Chicago.

155. Pedersen DR, Callaghan JJ, McAndrew C, Johnston RC. Dislocation and Wear of 22mm and

28mm Modular Heads in Uncemented Acetabular Cups. Paper presented at: Hip Society

Summer Meeting; September 15–16, 2000; Boston, MA.

156. Pedersen DR, Callaghan JJ, McAndrew C, Johnston RC. Total Hip Arthroplasty Wear Rate

Distributions are Non-Gaussian. Paper presented at: Hip Society Summer Meeting; September

15–16, 2000; Boston, MA.

157. Wilken J, Pedersen DR, Yack HJ, Callaghan JJ. 3 Dimensional Kinematics of Movements

Associated with Hip Dislocation Following Hip Replacement Surgery. Paper presented at: 2nd

Annual Graduate Student Senate Research Forum; April 12, 2000; University of Iowa, Iowa

City, IA.

158. Wilken J, Yack HJ, Pedersen DR, Brown TD, Callaghan JJ. 3 Dimensional Kinematics of

Movements Associated with Dislocation Following Hip Replacement Surgery. Paper presented

at: College of Medicine Research Week 2000; April 25, 2000; The University of Iowa, Iowa City,

IA.91


159. Brown TD, Maxian TA, Stewart KJ, Pedersen DR. Clinical Biomechanics of Wear in THA. Paper

presented at: The 1st Global Communication of the Art & Science of Joint Replacement

Surgery; October 31–November 2, 2001; Seoul, Korea.

160. Brown TD, Nadzadi ME, Scifert CF, Pedersen DR, Callaghan JJ. Biomechanics of THA

Dislocation. Paper presented at: The 1st Global Communication of the Art & Science of Joint

Replacement Surgery; October 31–November 2, 2001; Seoul, Korea.

161. Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Is a Polished Surface Finish

Optimal for a Collared Cemented Prosthesis? Paper presented at: 68th Annual Meeting of the

American Academy of Orthopaedic Surgeons; February 28–March 4, 2001; San Francisco, CA.

162. Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Cementless Acetabular

Fixation in Revision Hip Surgery: The Gold Standard for the New Millennium. Paper presented

at: 68th Annual Meeting of the American Academy of Orthopaedic Surgeons; February 28–

March 4, 2001; San Francisco, CA.

163. Grosland NM, Pedersen DR, Brown TD. Automating Voxel-Based Contact Finite Element

Models. Paper presented at: 9th Annual Symposium of Computational Methods in Orthopaedic

Biomechanics; February 23, 2001; San Francisco, CA.

164. Grosland NM, Pedersen DR, Brown TD. An Anatomical Voxel-Bsed FE Contact Analysis

Formulation. Paper presented at: 25th Annual Meeting of the American Society of

Biomechanics; August 9–12, 2001; San Diego, CA.

165. Johnston TL, Callaghan JJ, Pedersen DR, McAndrew CM. Are 22 mm Heads the Solution to

Polyethylene Wear in Cementless Acetabular Components? Paper presented at: 19th Annual

Meeting of the Mid-America Orthopaedic Association; April 18–22, 2001; Amelia Island

Plantation, FL.

166. Liu SS, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR. Cemented Metal Backed

Acetabular Components at Long-term Follow-up: What Lessons can be Applied to Cementless

Fixation? Paper presented at: 19th Annual Meeting of the Mid-America Orthopaedic

Association; April 18–22, 2001; Amelia Island Plantation, FL.

167. Liu SS, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Cemented Metal

Backed Acetabular Components at Long Term Follow-Up: What Lessons can be Applied to

Cementless Fixation? Paper presented at: 11th Annual Meeting of the American Association of

Hip and Knee Surgeons; November 9–11, 2001; Dallas, TX.

168. Nadzadi ME, Pedersen DR, Yack HJ, Callaghan JJ, Brown TD. Incorporation of In-Vivo Human

Kinetic Data Into a Finite Element Model of THA Dislocation. Paper presented at: 9th Annual 92


Symposium of Computational Methods in Orthopaedic Biomechanics; February 23, 2001; San

Francisco, CA.

169. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Cup Abduction/Anteversion Effects on

Dislocation Propensity for Small-Head-Size THR. Paper presented at: 47th Annual Meeting of

the Orthopaedic Research Society; February 24–28, 2001; San Francisco, CA.

170. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. A Mode of THA Dislocation Occurring

Without Impingement/Lever-Out. Paper presented at: 47th Annual Meeting of the Orthopaedic

Research Society; February 24–28, 2001; San Francisco, CA.

171. Nadzadi ME, Pedersen DR, Yack HJ, Brown TD. Maneuvers Commonly Responsible for Hip

Dislocation Define a Cup Placement 'Safe Zone' in Total Hip Arthroplasty. Paper presented at:

VA Research Day; April 19, 2001; The University of Iowa, Iowa City, IA.

172. Nadzadi ME, Pedersen DR, Yack HJ, Callaghan JJ, Brown TD. Development of a Living-Subject

Motion Database to Examine Both Posterior and Anterior Dislocation in THA. Paper presented

at: Proceedings of the 2001 Bioengineering Conference, 2001.

173. Nadzadi ME, Pedersen DR, Yack HJ, Callaghan JJ, Brown TD. A Database of Living-Subject

Motion to Examine Both Posterior and Anterior Dislocation of Total Hip Replacements. Paper

presented at: 25th Annual Meeting of the American Society of Biomechanics; August 9–12,

2001; San Diego, CA.

174. Pedersen DR, Yack HJ, Brown TD, Callaghan JJ. Kinematics of Maneuvers Commonly

Responsible for Total Hip Dislocation. Paper presented at: 4th Combined Meeting of the

Orthopaedic Research Societies of the U.S.A, Canada, Europe and Japan; June 1–3, 2001;

Rhodes, Greece.

175. Templeton JE, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR. Cementless Acetabular

Fixation in Revision Hip Surgery: The Gold Standard for the New Millennium. Paper presented

at: 19th Annual Meeting of the Mid-America Orthopaedic Association; April 18–22, 2001; Amelia

Island Plantation, FL.

176. Templeton JE, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Cementless

Acetabular Fixation in Revision Hip Surgery: Results at Minimum 10 Year Follow Up. Paper

presented at: 11th Annual Meeting of the American Association of Hip and Knee Surgeons;

November 9–11, 2001; Dallas, TX.

177. Callaghan JJ, Gaffey JL, Pedersen DR, Goetz DD, Johnston RC. Cementless Acetabular

Fixation at 15 Years: Comparison to the Gold Standard Charnley. Paper presented at: Joint

93


Meeting of the American and Canadian Orthopaedic Associations; June 1–4, 2002; Victoria,

British Columbia.

178. Callaghan JJ, Keener JD, Pedersen DR, Sullivan PM, Goetz DD, Johnston RC. Charnley Total

Hip Arthroplasty in Patients Under Age 50: Functional and Radiographic Results at Minimum 25

Year Follow-up. Paper presented at: Joint Meeting of the American and Canadian Orthopaedic

Associations; June 1–4, 2002; Victoria, British Columbia.

179. Callaghan JJ, Pedersen DR. Long Term Follow-up Studies of Wear. Paper presented at:

International Conference Engineers & Surgeons - Joined at the Hip; June 13–15, 2002; Savoy

Place, London, UK.

180. Dai Y, Pedersen DR, Grosland NM, Brown TD. Interactive Three-Dimensional Computational

Reconstruction of Intra-Articular Fractures. Paper presented at: The 10th Annual Symposium on

Computational Methods in Orthopaedic Biomechanics; February 9, 2002; Dallas, TX.

181. Gaffey JL, Callaghan JJ, Pedersen DR, Goetz DD, Johnston RC. Cementless Acetabular

Fixation at 15 Years: Comparison to the Gold Standard Charnley. Paper presented at: The 2002

Annual Meeting of the American Academy of Orthopaedic Surgeons; February 13–17, 2002;

Dallas, TX.

182. Lamb CA, Pedersen DR, Dolan LA, Morcuende JA, Weinstein SL. Radiographic Measurements

in DDH: Reliability and Validity of a Digitizing Program. Paper presented at: 48th Annual

Meeting of the Orthopaedic Research Society; February 10–13, 2002; Dallas, TX.


in DDH: Reliability and Validity of a Digitizing Program. Paper presented at: The 2002 Annual

Meeting of the Pediatric Orthopaedic Society of North America; May 1–5, 2002; Salt Lake City,

UT.


in DDH: Reliability and Validity of a Digitizing Program. Paper presented at: College of Medicine

Research Week 2002; April, 2002; The University of Iowa, Iowa City, IA.

185. Pedersen DR, Callaghan JJ, Johnston TL, Fetzer GB, Johnston RC. Are 22 Millimeter Heads

the Solution to Polyethylene Wear in Cenentless Acetabular Components? Paper presented at:

The 2002 Annual Meeting of the American Academy of Orthopaedic Surgeons; February 13–17,

2002; Dallas, TX.

186. Pedersen DR, Ralston HM, Lamb CA, Weinstein SL. Bone morphology changes in DDH hips.

Paper presented at: IV World Congress of Biomechanics; August 4–9, 2002; Calgary.

94


187. Stewart KJ, Pedersen DRB, R. A.; Brown, T. D. Hyperelastic Representation of Hip Joint

Capsule: A Finite Element Validation. Paper presented at: IV World Congress of Biomechanics;

August 4–9, 2002; Calgary.

188. Callaghan JJ, Gaffey JL, Goetz DD, Sullivan PM, Pedersen DR, Johnston, RC. Cementless

acetabular fixation at 15 years with the HG-I component: Comparison to the gold standard

Charnley. The American Association of Hip & Knee Surgeons 12 th Annual Fall Meeting,

November 1–3, 2002, Dallas, Texas.

189. Callaghan JJ, Pedersen DR, Johnston RC, Brown TD. Clinical Biomechanics of Wear in Total

Hip Arthroplasty. Paper presented at: 48th Annual Meeting of the Orthopaedic Research Society;

Feb., 2003; New Orleans, LA.

190. Gaffey JL, Callaghan JJ, Pedersen DR, Goetz DD, Sullivan PM, Johnston RC. Cementless

Acetabular Fixation at 15 Years: Comparison to the Same Surgeon's Cemented Results. Paper

presented at: MidAmerica Orthopaedic Association; April, 2003; Hilton Head.

191. Stewart KJ, Pedersen DR, Brand RA, Brown TD. Hyperelastic Representation of Hip Joint

Capsule: A Finite Element Validation. Paper presented at: 48 th Annual Meeting of the

Orthopaedic Research Society; February, 2003; New Orleans.

192. Firestone DE, Callaghan JJ, Pedersen DR, Goetz DD, Vittetoe DD. Ten-year Follow-up of Iowa

Polished Surface Femoral Prostheses. 35th Annual Student Medical Research Day, September

5, 2003, University of Iowa, Iowa City, Iowa. Poster Presentation.

193. Buckwalter AE, Callaghan JJ, Pedersen DR, Goetz DD, Vittetoe DA. A Minimum Twenty-five-

year Follow-up Study of Cemented Total Hip Arthroplasty Using “Contemporary” Cementing

Techniques. 35th Annual Student Medical Research Day, September 5, 2003, University of

Iowa, Iowa City, Iowa. Podium Presentation.

194. Ralston HM, Pedersen DR. Bone Morphology Changes in DDH Hips Throughout Adulthood.

Poster Session 1: Poster #4 at the 27th Annual Meeting of the American Society of

Biomechanics, September, 2003; Toledo, OH.

195. Lundberg HJ, Stewart KJ, Pedersen DR, Brown TD. Computational Investigations of Third Body

Acceleration of THA wear. University of Leeds School of Mechanical Engineering and School of

Medicine, January 14, 2004, Leeds, United Kingdom. Podium Presentation.

196. Bouchard SM, Stewart KJ, Pedersen DR, Brown TD. Parameters Influencing Dislocation

Resistance of Constrained Acetabular Cups. 12th Annual Symposium on Computational


California, San Francisco, California. 95


197. Lundberg HJ, Stewart KJ, Pedersen DR, Brown TD. Problematic Sites of Third Bbody

Embedment in Polyethylene for Wear Acceleration in Ttotal Hip Arthroplasty. 12 th Annual

Symposium on Computational Methods in Orthopaedic Biomechanics, March 6, 2004,

Parnassus Campus, University of California, San Francisco, California. (Oral Presentation.

Session title: Bone and prosthesis modeling)

198. Stewart KJ, Pedersen DR, Brown TD. Development of a Total Hip Dislocation Finite Element

Model with Capsule Representation. 12th Annual Symposium on Computational Methods in

Orthopaedic Biomechanics, March 6, 2004, Parnassus Campus, University of California, San

Francisco, California. (Accepted for Oral Presentation. Session title: Soft tissue modeling)

199. Bouchard SM, Stewart KJ, Pedersen DR, Brown TD. Parameters Influencing Performance of

Constrained Acetabular Cups. 50th Annual Meeting of the Orthopaedic Research Society, March

7–10, 2004, San Francisco, California.

200. Pedersen DR, Callaghan JJ, Brown TD. Activity-dependence of the Safe Zzone for THA


San Francisco, California.

201. Pedersen DR. Moderator Session 26: Polyethylene I. 50th Annual Meeting of the Orthopaedic

Research Society, March 8, 2004, San Francisco, California.

202. Callaghan JJ, Templeton JE, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. A

Benchmark for Future Ttotal Hip Arthroplasty: Results of Charnley THR at Minimum 30-year

Follow Up. 71st Annual Meeting of the American Academy of Orthopaedic Surgeons, March 10,

2004, San Francisco, California.

203. Bouchard SM, Stewart KJ, Pedersen DR, Callaghan JJ, Brown TD. Parameters Influencing

Performance of Constrained Acetabular Cups. Roy J. and Lucille A. Carver College of

Medicine/College of Public Health/VA Medical Center Research Week 2004, March 30– April 1,

2004, Iowa City, Iowa. Poster Presentation.

204. Leinen JA, Schroeder BT, Pedersen DR, Dolan LA, Weinstein SL, Morcuende JA. Long-term

Outcome After Closed Reduction for Developmental Dysplasia of the Hip. Roy J. and Lucille A.

Carver College of Medicine/College of Public Health/VA Medical Center Research Week 2004,

March 30–April 1, 2004, Iowa City, Iowa. Poster Presentation.

205. Pedersen DR, Callaghan JJ, Brown TD. Activity-dependence of the Safe Zone for THA

Dislocation Performance. Roy J. and Lucille A. Carver College of Medicine/College of Public

Health/VA Medical Center Research Week 2004, March 30– April 1, 2004, Iowa City, IA.

96


206. Firestone DE, Liu SS, Callaghan JJ, Gaffey JL, Pedersen DR, Goetz DD, Vittetoe DD, Sullivan

PM, Johnston RC. Comparison of Three Cemented Femoral Components with Identical

Geometry But Different Surface Finishes at Minimum Ten-year Follow-up. (Edward D. Henerson

Physician in Training Award). Mid-American Orthopaedic Association 22nd Annual Meeting, April

14–18, 2004, La Quinta, Palm Springs, California. Podium Presentation.

207. Buckwalter AE, Callaghan JJ, Goetz DD, Pedersen DR, Johnston RC. A Minimum Twenty-five-

year Follow-up Study of Cemented Total Hip Arthroplasty Using “Contemporary” Cementing

Techniques. Mid-American Orthopaedic Association 22nd Annual Meeting, April 14–18, 2004,

La Quinta, Palm Springs, California.

208. Bouchard SM, Stewart KJ, Pedersen DR, Callaghan JJ, Brown TD. Parameters Influencing

Performance of Constrained Acetabular Cups. University of Iowa College of Engineering’s

Research Open House, April 29, 2004, Iowa City, Iowa. Poster Presentation.

209. Dahl KA, Callaghan JJ, Pedersen DR, Liu SS, Goetz DD, Sullivan PM, Johnston RC. The Effect

of Cable Debris on Acetabular Construct Durability in Cemented Ttotal Hip Arthroplasty at

Minimum Twenty-year Follow-up. Mid-American Orthopaedic Association 22nd Annual Meeting,

April 14–18, 2004, La Quinta, Palm Springs, California. Podium Presentation and Poster.

210. Tochigi Y, Jin-Soo S, Amendola A, Pedersen DR, Saltzman CL. Reproducible Radiographic

Technique for Characterizing Antero-Posterior Tibio-Talar Alignment. American Orthopaedic

Foot and Ankle Society 20th Annual Summer Meeting, Seattle, Washington, July 29–31, 2004.

211. Pedersen DR, TD Brown. Nonlinear Computational Biomechanics of the Hhip. Fourth Annual

Bioengineering Research Partnership Grantee Meeting, Bethesda, Maryland, July 28–30, 2004.

212. Pedersen DR. Chronic Stress Tolerance of Human Articular Cartilage: Developmental Dysplasia

of the Hip as a Model of Long Term Overloading. The Whitaker Foundation Biomedical

Engineering Research Conference, La Jolla, California, August 12–15, 2004.

213. Baer, T.E., Pedersen, D.R., Rudert, J.M., Kallemeyn, N.A., Grosland, N.M., Brown, T.D.: A

Novel Device For Calibrating Sheet Array Pressure Sensors and For Monitoring Their

Performance. The 28th Annual Meeting of the American Society of Biomechanics, September 8–

11, 2004, Portland, Oregon. Poster #239.

214. Bouchard, S.M., Stewart, K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: A Parametric Finite

Element Study of Constrained Acetabular Liners. The 28 th Annual Meeting of the American

Society of Biomechanics, September 8–11, 2004, Portland, Oregon. Poster #174.

215. Lundberg, H.J., Stewart, K.J., Pedersen, D.R., Brown, T.D.: Problematic Sites of Third Body

Embedment in Polyethylene For Wear Acceleration in Total Hip Arthroplasty. The 28 th Annual 97


Meeting of the American Society of Biomechanics, September 8–11, 2004, Portland, Oregon.

Poster #180.

216. Stewart, K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Capsule Representation in a Total

Hip Dislocation Finite Element Model. The 28th Annual Meeting of the American Society of

Biomechanics, September 8–11, 2004, Portland, Oregon. Poster #129.

217. Pedersen, DR; Firestone, DE; Liu, SS; Callaghan, JJ; Goetz, DD; Johnston, RC. Durability of

Identical Cemented Femoral Component Geometries with Three Different Surface Finishes

Compared at Minimum 10-Year Follow-Up. 4th Chinese Speaking Orthopaedic Society Scientific

Congress, September 22–26, 2004, Beijing, China.

218. Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Activity-Dependence of the “Safe Zone” for

Impingement Versus Dislocation Avoidance. Zhong-Yuan University, College of Engineering,

September 30, 2004, Zhong-Li City, Taiwan.

219. Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Activity-Dependence of the “Safe Zone” for

Impingement versus Dislocation Avoidance. Joint Prosthesis Technology Research Center,

Orthopaedic Biomechanics Laboratory Institute of Biomedical Engineering, National Yang Ming

University, October 1, 2004, Taipei, Taiwan.

220. McKinley, T.O., Rudert, M.J., Koos, D.K., Pedersen, D.R., Baer, T.E., Tochigi, Y., Marsh, J.L.,

Brown, T.D.: Real-Time Transient and Whole-Stance Phase Contact Stress and Contact Stress

Gradient Changes in an Ankle Incongruity Model. OTA 20 th Annual Meeting, October 8, 2004,

Ft. Lauderdale/Hollywood, Florida.

221. Baer, T.E., Pedersen, D.R., Rudert, J.M., Kallemeyn, N.A., Grosland, N.M., Brown, T.D.:

Calibrating and Monitoring Sheet Array Pressure Sensors for Intra-Articular Loading

Measurement. 5th Combined Meeting of the Orthopaedic Research Societies of the U.S.A.,

Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta, Canada. Paper Presentation

#115.

222. Bouchard, S.M., Stewart, K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Factors Influencing

Mechanics of Constrained Acetabular Cups. 5th Combined Meeting of the Orthopaedic


Alberta, Canada. Poster #251.

223. Lundberg, H.J., Stewart, K.J., Pedersen, D.R., Brown, T.D.: Problematic Sites of Third Body

Embedment in Polyethylene For Wear Acceleration in Total Hip Arthroplasty. 5 th Combined

Meeting of the Orthopaedic Research Societies of the U.S.A., Canada, Japan and Europe,

October 10–13, 2004, Banff, Alberta, Canada. Poster # 215.98



Brown, T.D.: Whole-Cycle Contact Stress, Contact Stress Directional Gradient, and Loading

Rate Changes in an Ankle Incongruity Model. 5th Combined Meeting of the Orthopaedic


Alberta, Canada. Paper Presentation # 064.


Brown, T.D.: Time-Variant Contact Stress, Contact Stress Directional Gradient, and Loading

Rate Changes in an Ankle Incongruity Model. 5th Combined Meeting of the Orthopaedic


Alberta, Canada. Poster # 276.

226. Stewart, K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Capsule Representation in a Total

Hip Dislocation Finite Element Model. 5th Combined Meeting of the Orthopaedic Research

Societies of the U.S.A., Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta,

Canada. Paper Presentation #107.


Brown, T.D.: Time-Variant Contact Stress, Contact Stress Directional Gradient, and Loading

Rate Changes in an Ankle Incongruity Model. 9th International Society for Fracture Repair,

November 2–11, 2004, Bologna, Italy. Podium Presentation, Poster #47.

228. Lundberg, H.J., Stewart, K.J., Pedersen, D.R., Brown, T.D.: Sites of Kinetically Critical Femoral

Head Roughening For Third Body Acceleration of Total Hip Implant Wear. 2004 International

Mechanical Engineering Congress, November 18, 2004, Anaheim, California.

229. Pedersen, D.R., Shivanna, K.H., Russell, M.E., Grosland, N.M.: Cyclic Cartilage Stress

Elevations in Dysplastic Hips. 9th World Congress of the Osteoarthritis Research Society

International, December 2–5, 2004, Chicago, Illinois, Poster 117.

230. Vos, N., Grosland, N.M., Pedersen, D.R., Martin J., Heiner, A.D., Brown, T.D.: Heterogeneity of

Shear Stress Modulation in Triaxial Compression of Cartilage. 9 th World Congress of the

Osteoarthritis Research Society International, December 2–5, 2004, Chicago, Illinois, Poster

254.

231. Baer, T.E., Pedersen, D.R., Rudert, M.J., Kallemeyn, N.A., Grosland, N.M., Brown, T.D.:

Traveling-Wave Calibration of Intra-Articular Sheet Array Pressure Sensors. 9 th World Congress

of the Osteoarthritis Research Society International, December 2–5, 2004, Chicago, Illinois,

Poster 306.

99


232. Baer, T.E., Pedersen, D.R., Rudert, M.J., Kallemeyn, N.A., Grosland, N.M., Brown, T.D.:

Traveling-Wave Calibration of Sheet Array Sensors for Intra-Articular Pressure Measurements.

51st Annual Meeting of the Orthopaedic Research Society, February 20–23, 2005, Washington

DC. Poster Presentation #1699.

233. Lundberg, H.J., Pedersen, D.R., Muste, M.V., Baer, T.E., Brown, T.D.: Quantifying Fluid Ingress

to the Joint Space During THA Subluxation. University of Iowa College of Engineering 3rd

Annual Research Open House, April 7, 2005, Iowa City, Iowa.

234. Shivanna, K.H., Pedersen, D.R., Grosland, N.M.: Finite Element Mesh Generation of Synovial

Joints. University of Iowa College of Engineering 3rd Annual Research Open House, April 7,

2005, Iowa City, Iowa.

235. Goetz, J.E., Kurriger, G., Baer,T.E., Chung, Y.Y., Stoermer, E., Pedersen, D.R., Martin, J.A.,

Conzemius, M.G., Robinson, D., Brown, T.D.: Three-Dimensional Mappings of Histology Data in

the Osteonecrotic Emu Femoral Head. College of Medicine/College of Public Health/VA Medical

Center Research Week, May 18–20, 2005, Iowa City, Iowa.

236. Baer, T.E., Pedersen, D.R., Rudert, M.J., Kallemeyn, N.A., Grosland, N.M., Brown,T/D.:

Calibration and Monitoring of Piezoresistive Contact Stress Arrays Using a Traveling Pressure

Wave Protocol. XXth Congress of the International Society of Biomechanics and 29 th Annual

Meeting of the American Society of Biomechanics, July 31–August 5, 2005, Cleveland, Ohio.

Instrumentation: Podium Presentation.

237. Goetz, J.E., Baer, T.E., Kurriger, G., Pedersen, D.R., Brown,T.D.: Three Dimensional Multiscale

Reconstruction of Emu Femoral Head Osteonecrosis: From Cell to Organ Level. XXth Congress

of the International Society of Biomechanics and 29th Annual Meeting of the American Society of

Biomechanics, July 31–August 5, 2005, Cleveland, Ohio. Bone 1: Podium Presentation.

238. Goldsworthy, J.K., Anderson, D.D., Shivanna, K.H., Grosland, N.M., Pedersen, D.R., Brown,

T.D.: Chronic Stress Exposure Following Intra-Articular Ankle Fractures. XXth Congress of the


Biomechanics, July 31–August 5, 2005, Cleveland, Ohio. Ankle: Podium Presentation.

239. Kallemeyn, N.A., Grosland, N.M., Pedersen, D.R., Martin, J.A., Heiner, A.D., Brown,T.D.: A

Finite Element Analysis of Cartilage in Cyclic Triaxial Compression. XXth Congress of the


Biomechanics, July 31–August 5, 2005, Cleveland, Ohio. Osteoarthritis and Cartilage: Poster

Presentation #65.

100


240. Lundberg, H.J., Pedersen, D.R., Muste, M.V., Baer, T.E., Brown, T.D.: Quantifying Fluid Ingress

to the Joint Space During Total Hip Implant Subluxation. XXth Congress of the International

Society of Biomechanics and 29th Annual Meeting of the American Society of Biomechanics,

July 31–August 5, 2005, Cleveland, Ohio. Joint Mechanics: Poster Presentation #409.

241. Leinen JA, Brown TD, Callaghan JJ, Liu SS, Pedersen DR. Wear of cross-linked polyethylene

in total hip arthroplasty. Medical Student Research Day, University of Iowa College of

Medicine, September 2005, Iowa City, Iowa.

242. Metz CM, Callaghan JJ, Warth LC, Liu SS, Pedersen DR. Minimum five to ten year follow-up of

cementless total hip arthroplasty in patients age fifty and under. Medical Student Research Day,

University of Iowa College of Medicine, September 2005, Iowa City, Iowa

243. Yehyawi T, Callaghan JJ, O’Rourke MR, Pedersen DR, Liu SS. Implication of sagittal femoral

bowing on knee arthritis and total knee replacement. Medical Student Research Day,

University of Iowa College of Medicine, September 2005, Iowa City, Iowa.

244. Callaghan, J.J., Teusink, M.J., Liu, S.S., Sullivan, J., Goetz, D.D., Vittetoe, D.A., Pedersen, D.R.

Johnston, R.C.: Cementless Acetabular Fixation in Patients Under 50 years of Age: A 10–18

Year Follow-Up Study. Hip Society Summer Meeting, September 22–24, 2005, Pittsburgh,

Pennsylvania. Podium Presentation Session VIII: Acetabular Reconstruction.

245. Pedersen, D.R., Stewart, K.J., Brown, T.D., Callaghan, J.J.: Capsule Defect Influences on THA

Dislocation Propensity: A Finite Element Exploration. Hip Society Summer Meeting, September

22–24, 2005, Pittsburgh, Pennsylvania. Podium Presentation SessionIX: Acetabular

Alignment/Dislocation.

246. Pedersen, D.R., Stewart, K.J., Brown,T.D., Callaghan, J.J.: Capsule Defect Influences on Total

Hip Dislocation Propensity—A Finite Element Exploration. BMES 2005 Annual Fall Meeting: The

Changing Face of Biomedical Engineering: Celebration of the Whitaker Foundation, September

28–October 1, 2005, Baltimore, Maryland. Podium Presentation.

247. Goldsworthy, J.K., Anderson, D.D., Shivanna, K., Grosland, N.M., Pedersen, D.R., Thomas,

T.P., Tochigi, Y., Marsh, J.L., Brown, T.D.: Patient-Specific Computer Modeling of

Degeneration Propensity Due to Aberrant Contact Stress Exposure Following Intra-Articular

Fracture of the Ankle. 10th World Congress on Osteoarthritis, December 8–11, 2005, Boston,

Massachusetts. Poster Presentation #159.

248. Pedersen, D.R., Martin, J.A.: Chondrocyte Fiducials For Analysis of Cartilage Strain

Heterogeneity During Dynamic Cyclic Loading. 6th Symposium of ICRS 2006, January 8–11,

2006, San Diego, California. Poster Presentation #P2-4.101


249. Conzemius MG, Robinson DA, Theis LI, Waxman A, Evans R, Derrick T, Goetz JE, Pedersen

DR, Brown TD. Characterization of ground reaction forces in the normal emu. 2nd World

Veterinary Orthopaedic Congress, Keystone, Colorado, February 25–March 4, 2006. Poster

Presentation.

250. Brown, T.D., Derrick, T.R., Pedersen, D.R., Goetz, J.E., Robinson, D.A., Conzemius, M.G.:

Stance-Phase Kinematics and Kinetics of Emu Level Walking. 52nd Annual Meeting of the

Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. Poster Presentation #420.

251. Goldsworthy, J.K., Anderson, D.D., Shivanna, K., Grosland, N.M., Pedersen, D.R., Thomas,

T.P., Tochigi, Y., Marsh, J.L., Brown, T.D.: Patient-Specific Modeling of Degeneration

Propensity Following Intra-Articular Fracture of the Ankle. 52nd Annual Meeting of the

Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. Session 30: Foot and

Ankle. Paper Presentation #205.

252. Goldsworthy, J.K., Anderson, D.D., Pedersen, D.R., Tochigi, Y., Brown, T.D.: Achieving

Physiologic Rotation in Patient-Specific Contact Stress Analysis of the Ankle. 52nd Annual

Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. Poster

Presentation #1893.

253. Kallemeyn, N.A., Grosland, N.M., Pedersen, D.R., Martin, J.A., Heiner, A.D., Brown, T.D.: A

Poroelastic Finite Element Analysis of Cartilage in Dynamic Triaxial Compression. 52nd Annual


Presentation #1524.

254. Lundberg, H.J., Pedersen, D.R., Brown, T.D.: Effects of Femoral Head Size on Fluid Ingress

During Impingement/Subluxation. 52nd Annual Meeting of the Orthopaedic Research Society,

March 19–22, 2006, Chicago, Illinois. Session 23: Hip. Paper Presentation #219.

255. Pedersen, D.R., Chung, Y.Y., Callaghan, J.J., Brown, T.D.: Wear Direction Versus Wear Rate in

3rd Body-Challenged THA Cohorts. 52nd Annual Meeting of the Orthopaedic Research Society,

March 19–22, 2006, Chicago, Illinois. Poster Presentation #641.

256. Pedersen, D.R., Russell, M.E., Shivanna, K.H., Grosland, N.M.: Cartilage Contact Pressure

Elevations in Dysplastic Hips. 52nd Annual Meeting of the Orthopaedic Research Society, March

19–22, 2006, Chicago, Illinois. Paper Presentation #82.

257. Shivanna, K.H., Grosland, N.M., Russell, M.E., Brown, T.D., Pedersen, D.R.: Cartilage Contact

Pressure Elevations in Dysplastic Hhips After Ganz Osteotomy. 52nd Annual Meeting of the

Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. Poster Presentation

#1513.102


258. Stewart ,K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Capsular Atrophy and Detachment

Influences on THA Dislocation Propensity: A finite Element Model Exploration. 52nd Annual


Presentation #452.

259. Dahl, K.A., Pedersen, D.R., Callaghan, J.J., Goetz, D.D., Vittetoe, D.A., Sullivan, P.M., Young-

Yool, C., Johnston, R.C. The Effect of Cable Debris on Acetabular Construct Durability in

Cemented THA at 19–20 Year Follow-Up. 73rd Annual Meeting of the American Academy of

Orthopaedic Surgeons, March 22–26, 2006, Chicago, Illinois. Podium Presentation.

260. Goldsworthy, J.K., Anderson, D.D., Rudert, M.J., Tochigi, Y., Pedersen, D.R., Brown, T.D.:

Validation of a Patient-Specific Finite Eelement Model of the Ankle. 14 th Annual Symposium on

Computational Methods in Orthopaedic Biomechanics, March 18, 2006, Chicago, Illinois.

261. Goreham-Voss CM, Rudert MJ, Brown TD. Poroelestic finite element analysis of a step-off

articular incongruity. 14th Annual Symposium on Computational Methods in Orthopaedic

Biomechanics, March 18, 2006, Chicago, Illinois. Podium Presentation.

262. Leinen JA, Callaghan JJ, Altenburg JA, Dahl KA, Pedersen DR, Liu SS, Goetz DD, Vittetoe DA,

Sullivan PM, Chung YY, Johnston RC. The effect of cable debris on acetabular construct

durability in cemented total hip arthroplasty at 19 to 20 year follow-up. American Academy of

Orthopaedic Surgeons (AAOS), March 22–26, 2006, Chicago Illinois.

263. Goetz JE, Baer TE, Kurriger GL, Pedersen DR, Robinson DA, Conzemius MG, Brown, TD.

Three-dimensional histologic evaluation of osteonecrotic lesion volume in the emu femoral

head. 2006 Midwest Graduate Student Biomechanics Symposium (MWGSBS), March 31–April

1, 2006, Milwaukee, Wisconsin. Podium Presentation, Session 5: Orthopaedics.

264. Goldsworthy JK, Anderson DD, Rudert MJ, Tochigi Y, Pedersen DR, Brown TD. Validation of a

patient-specific finite element model of the ankle. 2006 Midwest Graduate Student

Biomechanics Symposium (MWGSBS), March 31–April 1, 2006, Milwaukee, Wisconsin. Podium

Presentation, Session 2: Locomotion 1. Outstanding Research Award Winner.

265. Lundberg HJ, Pedersen DR, Brown TD. Effects of femoral head size on fluid ingress during THA

impingement/subluxation. 2006 Midwest Graduate Student Biomechanics Symposium

(MWGSBS), March 31–April 1, 2006, Milwaukee, Wisconsin. Poster Presentation.

266. Lundberg HJ, Pedersen DR, Brown TD. Effects of femoral head size on fluid ingress during THA

impingement/subluxation. The University of Iowa College of Engineering 4 th Annual College of

Engineering Research Open House, April 20, 2006, Iowa City, Iowa.

103


267. Teusink MJ, Callaghan JJ, Liu SS, Sullivan J, Goetz DD, Vittetoe DA, Pedersen DR, Johnston

RC. Cementless acetabular fixation in patients 50 Years of age and under: A 10–18 year follow-

up study. Mid American Orthopaedic Association (MAOA) Annual Meeting, April 19–23, 2006,

San Antonio, Texas.

268. Leinen JA, Callaghan JJ, Liu SS, Klaassen AL, Pedersen DR. Three to five year radiographic

follow-up of moderately cross-linked marathon polyethylene in total hip replacement. Mid-

American Orthopaedic Association (MAOA) Annual Meeting, April 19–23, 2006, San Antonio,

Texas.

269. Thedens DR, Pedersen DR, Martin JA, Brown TD. T1rho imaging of mechanically stressed

human cartilage. ISMRM 14th Scientific Meeting, May 6–12, 2006, Seattle, Washington. Oral

Presentation.

270. Callaghan JJ, Firestone DE, Liu SS, Pedersen DR, Goetz DD, Sullivan PM, Vittetoe DA,

Johnston RC. Minimum 10-year follow-up of three cemented femoral components with

essentially the same geometry but different surface finishes. 119th Annual Meeting of the

American Orthopaedic Association (AOA), June 21–24, 2006, San Antonio, Texas.

271. Lundberg HJ, Pedersen DR, Callaghan JJ, Brown TD. Effects of implant design parameters on

fluid ingress during THA impingement/subluxation. 5 th World Congress on Biomechanics, July

29–August 4, 2006, Munich, Germany. Podium Presentation #4362.

272. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Multi-scale geometric

measurements of experimentally induced osteonecrotic lesions in an emu model. 30 th Annual

Meeting of the American Society of Biomechanics, September 6–9, 2006, Blacksburg, Virginia.

Session: Bone/Cartilage, Poster Presentation.

273. Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Anatomy-based

model of normal emu during gait. 30th Annual Meeting of the American Society of Biomechanics,

September 6–9, 2006, Blacksburg, Virginia. Session: Modeling, Podium Presentation.

274. Goldsworthy JK, Anderson DD, Rudert MJ, Tochigi Y, Pedersen DR, Brown TD. Validation of a

patient-specific finite element model of the ankle. 30 th Annual Meeting of the American Society

of Biomechanics, September 6–9, 2006, Blacksburg, Virginia. Session: Finite Element Analysis,

Podium Presentation. MicroStrain Award Winner.

275. Lundberg HJ, Pedersen DR, Callaghan JJ, Brown TD. Effects of implant design parameters on

fluid ingress during THA impingement/subluxation. 30th Annual Meeting of the American

Society of Biomechanics September 6–9, 2006, Blacksburg, Virginia. Session: Pre-doc Award,

Podium Presentation.104


276. Tochigi Y, Rudert MJ, McKinley TO, Pedersen DR, Brown TD. Cartilage contact stress

aberration during unstable joint motion. 30th Annual Meeting of the American Society of

Biomechanics, September 6–9, 2006, Blacksburg, Virginia. Poster Presentation.

277. Callaghan JJ, O’Rourke MR, Liu SS, Pedersen DR, Johnston RC. Follow-up of a cemented

collared matte finish femoral component at 19 to 20 years. Closed Meeting of the Hip Society,

Iowa City, Iowa, September 7–9, 2006.

278. Callaghan JJ, Lundberg HJ, Liu SS, Pedersen DR, O’Rourke MR, Goetz DD, Vittetoe DA,


embedded third body debris. Closed Meeting of the Hip Society, Iowa City, Iowa, September 7–

9, 2006.

279. Lundberg HJ, Callaghan JJ, Liu SS, Pedersen DR, O’Rourke MR, Goetz DD, Vittetoe DA,


embedded third body debris. The Hip Society Summer Meeting, September 7–9, 2006, Iowa

City, Iowa.

280. Yehyawi TM, Callaghan JJ, O’Rourke MR, Pedersen DR, Liu SS. Implications of sagittal femoral

bowing on knee arthritis and total knee arthroplasty. University of Iowa College of Medicine

Student Research Day, University of Iowa, September 8, 2006, Iowa City, Iowa.

Outstanding Poster Award.

281. Callaghan JJ, Yehyawi TM, O’Rourke MR, Pedersen DR, Liu SS, Clark CR. Implications of

sagittal femoral bowing on knee arthritis and total knee replacement. Knee Society Interim

Meeting September 28–30, 2006, Alexandria, Virginia. Podium Presentation.

282. Callaghan JJ, Yehyawi TM, O’Rourke MR, Liu SS, Pedersen DR. Implication of sagittal femoral

bowing on knee arthritis and total knee replacement. 16 th Annual Meeting of the American

Association of Hip and Knee Surgeons, November 3–5, 2006, Dallas, Texas.

283. Callaghan JJ, Altenburg A, Leinen JA, Dahl KA, Pedersen DR, Liu SS, Goetz DD, Vittetoe DA,

Sullivan PM, Chung YY, Johnston RC. The effect of cable debris on acetabular construct

durability in cemented total hip arthroplasty at nineteen to twenty year follow-up. 16 th Annual

Meeting of the American Association of Hip and Knee Surgeons, November 3–5, 2006, Dallas,

Texas.

284. Goetz JE, Pedersen DR, Brown TD. Thermal property determination of emu cancellous bone

using finite element modeling. 15th Annual Symposium on Computational Methods in

105


Orthopaedic Biomechanics, February 10, 2007, University of California - San Diego, La Jolla,

California.

285. Mittelholtz KS, Pedersen DR, Mendoza SA, Mayer HM, Siepe C, Hall RM, Brown TD. Finite

element analysis of total disc replacement wear. 15th Annual Symposium on Computational

Methods in Orthopaedic Biomechanics, February 10, 2007, University of California - San Diego,

La Jolla, California. Podium Presentation Session III: Spine, Poster Presentation.

286. Moussavi-Harami SF, Pedersen DR, Martin JA, Brown TD. Quantitative image analysis of

cartilage histology. 15th Annual Symposium on Computational Methods in Orthopaedic

Biomechanics, February 10, 2007, University of California - San Diego, La Jolla, California. Oral

Poster Introduction Session II: Poster Intro.

287. Rumery MP, Pedersen DR, Brown TD, Mendoza SA, Mayer HM, Siepe C, Hall RM.

Performance of a novel pose-based technique for measuring total disc replacement wear. 15 th

Annual Symposium on Computational Methods in Orthopaedic Biomechanics, February 10,

2007, University of California - San Diego, La Jolla, California. Oral Poster Introduction Session

II: Poster Intro.

288. Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. A gait-based

anatomic analysis of emu hip joint loading. 53rd Annual Meeting of the Orthopaedic Research

Society, February 11–14, 2007, San Diego, California. Poster Presentation #1823.

289. Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Evaluation of

osteonecrotic lesion volume in the emu femoral head by three dimensional histology. 53 rd

Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego,

California. Poster Presentation #1319.

290. Hecht BA, Martin JA, Pedersen DR, Heiner AD, Amendola R, Buckwalter JA. Oxidant pre-

conditioning protects cartilage from mechanically-induced cell death. 53rd Annual Meeting of the

Orthopaedic Research Society, February 11–14, 2007, San Diego, California. San Diego,

California. Paper Presentation #115, Session 21: Chondrocyte Mechanotransduction.

291. Lundberg HJ, Liu SS, Pedersen DR, Callaghan JJ, Brown TD. Analysis of retrieved acetabular

liners for impingement damage and embedded third body debris. 53 rd Annual Meeting of the

Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Poster

Presentation #1645.

292. Martin JA, Pedersen DR, Heiner AD, Buckwalter JA, Brown TD. N-acetyl cysteine protects

cartilage from loading-induced proteoglycan loss. 53rd Annual Meeting of the Orthopaedic

Research Society, February 11–14, 2007, San Diego, California. Poster Presentation #566.106


293. Moussavi-Harami SF, Pedersen DR, Martin JA, Brown TD. Automated objective scoring of

osteoarthritis severity. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–

14, 2007, San Diego, California. Poster Presentation #1255.

294. Stroud NJ, Martin JA, Pedersen DR, Goetz JE, Brown TD. Structure and function of emu versus

human articular cartilage. 53rd Annual Meeting of the Orthopaedic Research Society, February

11–14, 2007, San Diego, California. Poster Presentation #602.

295. Thedens DR, Pedersen DR, Martin JA, Brown TD. Assessment of mechanically stressed human

cartilage with T1ρ imaging. 53rd Annual Meeting of the Orthopaedic Research Society, February

11–14, 2007, San Diego, California. Poster Presentation #378. Short Talk 9:Imaging of

Musculoskeletal Cells and Tissues.

296. Tochigi Y, Rudert MJ, McKinley TO, Pedersen DR, Brown TD. An experimental model of joint

instability for study of dynamic cartilage contact mechanics. 53rd Annual Meeting of the

Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Poster

Presentation #614.

297. Yehyawi TM, Callaghan JJ, O’Rourke MR, Liu SS, Pedersen DR. Implications of sagittal femoral

bowing on knee arthritis and total knee replacement. 53 rd Annual Meeting of the Orthopaedic

Research Society, February 11–14, 2007, San Diego, California. Poster Presentation.

298. McKinley TO, Tochigi Y, Rudert MJ, Pedersen DR, Brown TD. Instability-associated changes in

contact stress and contact stress rates in human ankles. 74 th Annual Meeting of the American

Academy of Orthopaedic Surgeons, February 14–18, 2007, San Diego, California. Poster

#P466.



embedded third body debris. 2007 Annual Meeting of the Mid-America Orthopaedic Association,

April 11–15, 2007, Boca Raton, Florida. Poster Presentation #29.

300. Yehyawi T, Callaghan JJ, O’Rourke MR, Liu SS, Pedersen DR. Implication of sagittal femoral

bowing on knee arthritis and total knee replacement. 2007 Annual Meeting of the Mid-America

Orthopaedic Association, April 11–15, 2007, Boca Raton, Florida. Poster Presentation #50.

301. Mittelholtz KS, Pedersen DR, Mendoza SA, Mayer HM, Siepe C, Hall RM, Brown TD. Finite

element analysis of total disc replacement wear. 7 th Annual Meeting of the Spine Arthroplasty

Society, May 1–4, 2007, Berlin, Germany. Poster Presentation.

107


302. Rumery MP, Pedersen DR, Brown TD, Mendoza SA, Mayer HM, Siepe C, Hall RM. Accuracy of

a novel pose-based technique for in-vivo measurement of total disc replacement wear. 7 th

Annual Meeting of the Spine Arthroplasty Society, May 1–4, 2007, Berlin, Germany. Poster

Presentation.

303. Thedens DR, Martin JA, Pedersen DR, Brown TD. Detection of proteoglycan depletion in

mechanically loaded cartilage with T1&[rho] imaging. ISMRM-ESMRMB Joint Annual Meeting,

May 19–25, 2007, Berlin, Germany.

304. Callaghan JJ, Leinen JA, Liu SS, Klaassen AL, Pedersen DR. Three to five year radiographic

follow-up of moderately cross-linked Marathon polyethylene in total hip replacement. 120 th

Annual Meeting of the American Orthopaedic Association, Asheville, North Carolina, June 13–

16, 2007.

305. Callaghan JJ, Donigan JA, Teusink MJ, Warth LC, Liu SS, Sullivan J, Goetz DD, Vittetoe DA,

Pedersen DR, Johnston RC. Cementless acetabular fixation in patients age 50 and under: a 10

to 18 year follow-up study. 120th Annual Meeting of the American Orthopaedic Association, June

13–16, 2007, Asheville, North Carolina .


Clohisy JC, Brown TD. Analysis of retrieved acetabular liners for impingement damage and

embedded third body debris. 120th Annual Meeting of the American Orthopaedic Association,

Asheville, North Carolina, June 13–16, 2007.

307. Callaghan JJ, Altenburg A, Yehyawi TM, Dahl KA, Pedersen DR, Liu SS, Goetz DD, Vittetoe

DA,Sullivan PM, Chung YY, Johnston RC. The effect of cable debris on acetabular construct

durability in cemented total hip arthroplasty at nineteen to twenty year follow-up. 120 th Annual

Meeting of the American Orthopaedic Association, June 13–16, 2007, Asheville, North Carolina.

308. Heiner AD, Lundberg HJ, Baer TE, Pedersen DR, Callaghan JJ, Brown TD. Episodic

subluxation increases third body ingress and embedment in the THA bearing surface. 31st

Annual Meeting of the American Society of Biomechanics, August 22–25, 2007, Stanford,

California. Podium 3: Bone I.

309. Tochigi Y, Rudert MJ, McKinley TO, Pedersen DR, Brown TD. Correlation of dynamic cartilage

contact stress aberration with severity of joint instability. 31st Annual Meeting of the American

Society of Biomechanics, August 22–25, 2007, Stanford, California. Poster Presentation P4-15.

310. Brown TD, Pedersen DR, Stewart KJ, Callaghan JJ. Biomechanical studies of total hip

impingement/dislocation. (Invited Plenary Lecture) 15th Triennial Congress of the Asian Pacific

Orthopaedic Association (APOA) 2007, September 11, 2007, Seoul, Korea, p. 136.108


311. Brown TD, Goetz JE, Pedersen DR, Conzemius MG. The emu as a bipedal animal model of

femoral head osteonecrosis. (Seminar) Biomedical Engineering Technology Institute, Yonsei

University, September 13, 2007, Seoul, South Korea.

312. Brown TD, Rumery MP, Mittelholtz K, Pedersen DR, Mendoza SA. New computational

techniques to assess wear of total disc replacement implants. (Seminar) Biomedical Institute,

Solco Biomedical Co., Ltd., September 14, 2007, Pyungteak, Korea.

313. Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Brown, TD. Contact forces

in the emu hip joint during normal walking. 6th Combined Meeting of the Orthopaedic Research

Societies, October 20–24, 2007, Honolulu, Hawaii. Podium Presentation Session 27: Gait and

Function.

314. Callaghan JJ, Yehyawi TM, O’Rourke MR, Pedersen DR, Liu SS. Implications of sagittal femoral

bowing on knee arthritis and total knee replacement. American Association of Hip and Knee

Surgeons 17th Annual Meeting, November 2–4, 2007, Dallas, Texas.

315. Moussavi-Harami SF, Pedersen DR, Martin JA, Hillis SL, Brown TD. Comparison of the ICRS

versus HHGS (Mankin) cartilage histology scales. OARSI World Congress on Osteoarthrits

2007, December 6–9, 2007, Ft. Lauderdale, Florida. Poster Presentation.

316. Moussavi-Harami SF, Pedersen DR, Martin JA, Hillis SL, Brown TD. Automated objective

scoring of cartilage histology. OARSI World Congress on Osteoarthrits 2007, December 6–9,

2007, Ft. Lauderdale, Florida. Poster Presentation.

317. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown, TD. A finite element study of

the structural effects of lesion morphology in a bipedal animal model of femoral head

osteonecrosis. 16th Annual Symposium on Computational Methods in Orthopaedic

Biomechanics, Saturday, March 1st, 2008, University of California-San Francisco, San

Francisco, California. Poster and Podium Presentation.

318. Brown TD, Rumery M, Pedersen DR, Mendoza SA. A pose-based image analysis technique for

measuring wear of total disc replacements. 54th Annual Meeting of the Orthopaedic Research

Society, March 2–5, 2008, San Francisco, California. Poster Presentation #1923, Session 44:

Implant Wear.

319. Heiner AD, Lundberg HJ, Baer TE, Pedersen DR, Callaghan JJ, Brown TD. Episodic

subluxation increases third body ingress and embedment in the THA bearing surface. 54 th

Annual Meeting of the Orthopaedic Research Society, March 2–5, 2008, San Francisco,

California. Poster Presentation #: 1902, Session 44: Implant Wear.

109


320. Ramakrishnan PS, Stroud NJ, Pedersen DR, Buckwalter J A, Martin JA. Time dependent

mechanical changes in cartilage after single blunt impact injury in vitro bovine osteochondral

model. 54th Annual Meeting of the Orthopaedic Research Society, March 2–5, 2008, San

Francisco, California. Poster Presentation.

321. Stroud NJ, Ramakrishnan PS, Pedersen DR, BrownTD, Martin JA. Characterization of emu and

bovine tissue response to injury. 54th Annual Meeting of the Orthopaedic Research Society,

March 2–5, 2008, San Francisco, California. Poster Presentation.



embedded third body debris. 75 th Annual Meeting of theAmerican Academy of Orthopaedic

Surgeons, March 5–9, 2008, San Francisco, California. Poster Presentation #101.

323. Mittelholtz K, Pedersen DR, Mendoza SA, Mayer HM, Siepe C, Hall RM, Brown TD. Finite

element analysis of total disc replacement wear. Spine Arthroplasty Society, Global Symposium

on Motion Preservation Technology 8th Annual Meeting, May 6–9, 2008, Miami, Florida. Poster

Presentation #P53.

324. Rumery MP, Pedersen DR, Mendoza SA, Siepe C, Mayer HM, Brown TD. A pose-based image

analysis technique for measuring wear of total disc replacements.Spine Arthroplasty Society,

Global Symposium on Motion Preservation Technology 8th Annual Meeting, May 6–9, 2008,

Miami, Florida. Poster Presentation #P36.

325. Brown TD, Hall RM, Mayer HM, Goreham-Voss CM, Gaddam S, Pedersen DR, Mendoza SA,

Fisher J, Ingham I, Vicars R, Marsh JL, Siepe C. Wear analysis of intervertebral disc

replacements. Eighth Annual Bioengineering Research Partnership Grantee Meeting, National

Institutes of Health Bioengineering Consortium, June 23–24, 2008, Bethesday, Maryland,

Poster Presentation.

326. Thedens DR, Martin JA, Mastbergen S, DeGroot J, Tadimalla S, Pedersen DR. Age, DJD, OA:

AGE, GAG, T1ρ MRI. 2nd Annual Workshop on Imaging Based Measures of Osteoarthritis, June

25–28, 2008, Boston, Massachusetts, Poster Presentation.

327. Amendola RL, Martin JA, Kurriger GL, Moussavi-Harami SF, Brown TD, Pedersen DR.

Automated Mankin scoring of osteoarthritis severity in rabbits. The North American Congress on

Biomechanics (NACOB 2008), August 5–9, 2008, Ann Arbor, Michigan. Poster Presentation,

Session 1.

110


328. McCabe DJ, Stroud NJ, Pedersen DR, Martin JA. An innovative method to analyze the

chondrocyte response to mechanical injury both temporally and spatially. The North American

Congress on Biomechanics (NACOB 2008), August 5–9, 2008, Ann Arbor, Michigan. Podium

Presentation, Session 3.

329. Pedersen DR, Thedens DR, Martin JA, Tadimalla S, Ramakrishnan PS, Amendola A. ACL

rupture in an in vivo impact model. The North American Congress on Biomechanics (NACOB

2008), August 5–9, 2008, Ann Arbor, Michigan. Podium Presentation, Session 28.

330. Goreham-Voss CM, McCabe DJ, Rudert MJ, Martin JA, Pedersen DR, Brown TD. Spatial

correlations between local impact stress and cell death distributions. OARSI World Congress on

Osteoarthritis 2008, September 18–21, 2008, Rome, Italy. Poster Presentation #121.

331. McCabe DJ, Stroud NJ, Ramakrishnan P, Buckwalter JA, Pedersen DR, Martin JA. Intracellular

oxidant production by chondrocytes in osteochondral explants following blunt impact injury.

OARSI World Congress on Osteoarthritis 2008, September 18–21, 2008, Rome, Italy. Poster

Presentation #187.

332. Amendola RL, Martin JA, Kurriger GL, Moussavi-Harami, SF, Brown TD, Pedersen DR.

Automated Mankin grading of OA severity in rabbits. 55 th Annual Meeting of the Orthopaedic

Research Society, February 22–25, 2009, Las Vegas, Nevada. Poster Presentation #1076,

Poster Session 24: Cartilage Matrix Degeneration.

333. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Effects of lesion location on

collapse propensity in the emu model of femoral head osteoecrosis. 55 th Annual Meeting of the

Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Poster

Presentation #722, Poster Session 12: Bone—Material Properties and Mechanics.

334. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Thermal history

determinants of cryogenically-induced osteonecrosis in emu cancellous bone. 55 th Annual


Podium Presentation, Paper #40, Session 08: Hip Disorders.

335. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Increased incidence of

femoral head collapse in the emu model of osteonecrosis following a drill guide-positioned

cryoprobe insult. 55th Annual Meeting of the Orthopaedic Research Society, February 22–25,

2009, Las Vegas, Nevada. Poster Presentation #723, Poster Session 12: Bone—Material

Properties and Mechanics.

336. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Comparison of bone

mineralization rates between avian and mammalian models of femoral head osteonecrosis. 55 th

111


Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas,

Nevada. Podium Presentation, Paper #277, Poster Presentation #277, Short Talk Session 01:

Bone Structure and Mechanics I.

337. Pedersen DR, Martin JA, Mastbergen S, DeGroot J, Tadimalla S, Thedens DR. AGE effects on

PG-sensitive T1 MRI. 55th Annual Meeting of the Orthopaedic Research Society, February

22–25, 2009, Las Vegas, Nevada. Poster Presentation #1159, Poster Session 32: Osteoarthritis

—Imaging.

338. Ramakrishnan P, Stroud N, McCabe D, Pedersen DR. Repeated measures improves detection

of early degenerative changes after cartilage injury. 55 th Annual Meeting of the Orthopaedic

Research Society, February 22–25, 2009, Las Vegas, Nevada. Poster Presentation #1082,

Poster Session 25: Cartilage Impact Models.

339. Stroud NJ, McCabe D, Goodwin W, Pedersen DR, Martin JA. An innovative method for analysis

of the distribution and timing of chondrocyte responses to mechanical injury in vitro. 55 th Annual


Poster Presentation #1083, Poster Session 25: Cartilage Impact Models.

340. Tadimalla S, Thedens DR, Martin JA, Amendola A, Pedersen DR. Cartilage health post-ACL

injury: T1and dGEMRIC measurements. 55th Annual Meeting of the Orthopaedic Research

Society, February 22–25, 2009, Las Vegas, Nevada. Podium Presentation, Paper #237,

Session 43: Cartilage Imaging.

341. Pedersen DR. T1, T2 and dGEMRIC measurements post-ACL reconstruction. Sports

Medicine Traveling Fellows, University of Iowa Department of Orthoapedics & Rehabilitation,

March 10, 2009, Iowa City, Iowa.

342. Elkins JM, Pedersen DR, Tochigi Y, Callaghan JJ, Weiss JA, Andersen AE, Brown TD.

Incorporating the hip capsule in a dynamic finite element model of total hip arthroplasty. Carver

College of Medicine, College of Pharmacy, College of Public Health and VA Health System

Research Week, April 14–15, 2009, Iowa City, Iowa. Poster Presentation.

343. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Impingement contact mechanics of hard-on-

hard total hip bearings. Carver College of Medicine, College of Pharmacy, College of Public

Health and VA Health System Research Week, April 14–15, 2009, Iowa City, Iowa. Poster

Presentation.

344. Stroud NJ, McCabe DJ, Goodwin WG, Pedersen DR, Martin JA. An innovative method for

analysis of chondrocyte responses to mechanical injury in vitro both spatially and temporally.

112


The University of Iowa College of Engineering’s Research Open House, April 16, 2009, Iowa

City, Iowa. Poster Presentation.

345. Thedens DR, Tadimalla S, Martin JA, Amendola A, Pedersen DR. T1 assessment of human

cartilage in an impact injury model. International Society for Magnetic Resonance in Medicine

17th Scientific Meeting & Exhibition, Honolulu, Hawaii, April 18–24, 2009. Multimedia E-poster

Session: Cartilage: Quantitative Techniques & Loading.

346. Pedersen DR, Tadimalla S, Thedens DR, Martin JA, Amendola A. Same day T1, T2 and

dGEMRIC measurements of cartilage post-ACL injury. 3rd International OA imaging Workshop

Osteoarthritis Imaging: Capitalising on the Knowledge Investment, May 13–16, 2009, York,

United Kingdom. Podium Presentation.

347. Brown TD, Lundberg HJ, Pedersen DR, Callaghan JJ. Clinical biomechanics of third body

acceleration of total hip wear. 61st Annual Meeting of the Association of Bone and Joint

Surgeons, May 13–17, 2009, Maui, Hawaii.

348. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Orientation-dependent impingement contact

mechanics for hard-on-hard total hip bearings. 33rd Annual Meeting of the American Society of

Biomechanics, August 26–29, 2009, State College, Pennsylvania. Poster Presentation.

349. Williams G, Allen E, Wu J, Rudert MJ, Pedersen DR. Assessment of the Pressore Step™

system as an extended wear weightbearing activity monitor for use with orthopaedic patients.

33rd Annual Meeting of the American Society of Biomechanics, August 26–29, 2009, State

College, Pennsylvania. Poster Presentation.

350. Thedens DR, Tadimalla S, Martin JA, Amendola A, Pedersen DR. T1rho assessment of human

cartilage impact injury model. OARSI World Congress on Osteoarthritis 2009, September 10–

13, 2009, Montreal, Quebec, Canada. Abstract Control # 457, Poster Presentation.

351. Pedersen, DR, Elkins JM, Callaghan JJ, Brown TD. Impingement contact mechanics of total hip

bearings. Closed Scientific Meeting of the Hip Society September 24–26, 2009, Palo Alto,

California, Podium Presentation, Session V: Impingement and Dislocation.

352. Williams GN, Thedens DR, Tadimalla S, Amendola A, Pedersen DR. T1rho imaging of cartilage

in the first year after ACL injury. Segal North American Osteoarthritis Workshop III, October 1–

3, 2009, Chigago, Illinois. Poster Presentation.

353. Elkins JM, Pedersen DR, Tochigi Y, Rudert MJ, Ellis BJ, Callaghan JJ, Weiss JA, Brown TD.

Implementing a fiber-directed anisotropic capsule in a total hip arthroplasty dislocation finite

113


element model. 56th Annual Meeting of the Orthopaedic Research Society, March 6–9, 2010,

New Orleans, Louisiana. Poster #2111: Session 57 Arthropolasty - Finite Element Analysis.

354. Elkins JM, Pedersen DR, Tochigi Y, Rudert MJ, Ellis BJ, Callaghan JJ, Weiss JA, Brown TD.

Effect of cup orientation on resistance to hip dislocation during flexion/exorotation-dominated

kinetic challenge. 56th Annual Meeting of the Orthopaedic Research Society, March 6–9, 2010,

New Orleans, Louisiana. Poster #2029: Session 54 Total Hip Arthroplasty – Biomechanics.

355. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Impingement contact mechanics for hard-

on-hard total hip bearings. 56th Annual Meeting of the Orthopaedic Research Society, March 6–

9, 2010, New Orleans, Louisiana. Poster #2110: Session 57 Arthropolasty - Finite Element

Analysis.

356. Kang L, Baer TE, Rudert MJ, Pedersen DR, Brown TD. An iterative calibration algorithm for

transient contact stress sensor grids. 56th Annual Meeting of the Orthopaedic Research Society,

March 6–9, 2010, New Orleans, Louisiana. Paper #405: Short Talk Session 18 Total Knee

Arthroplasty.

357. Seol DR, Choe HH, Jang KW, Lehman AD, Homandberg G, Heiner AD, Ramakrishnan PS, Lim

TH, Martin JA, Pedersen DR. Effect of impact-induced chemical factors on bovine articular

cartilage: A cell proliferation and migration study. 56th Annual Meeting of the Orthopaedic

Research Society, March 6–9, 2010, New Orleans, Louisiana. Poster #981: Session 27

Cartilage Repair.

358. Thedens DR, Klocke NF, Martin JA, Baer TE, Pedersen DR. Effect of B0 magnetic field changes

on quantitative T1 relaxation measurements. 56th Annual Meeting of the Orthopaedic Research

Society, March 6–9, 2010, New Orleans, Louisiana. Poster #1353: Session 36 Imaging and

Diagnostics.

359. Klocke NF, Thedens DR, Martin JA, Brown TD, Pedersen DR. Semi-automatic canny edge

detected line profiles through the lateral femoral condyle in normal subjects using articular

cartilage-specific MRI. The University of Iowa College of Engineering’s Research Open House,

April 8, 2010, Iowa City, Iowa. Poster Presentation.

360. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Impingement contact mechanics for hard-

on-hard total hip bearings. The Carver College of Medicine, College of Pharmacy, College of

Public Health, Institute for Clinical and Translational Science and VA Health System Research

Week, April 13–15, 2010, Iowa City, Iowa. Poster Presentation.

114


361. Thedens DR, Klocke NF, Amendola A, Pedersen DR. Semi-automated profile generation for

functional cartilage imaging. ISMRM/ESMRMB Joint Annual Meeting, May 1–7, 2010,

Stockholm, Sweden. Multimedia E-Poster. Session: Meniscus & Cartilage.


on quantitative T1 relaxation measurements. 4th International Workshop on Imaging Based

Measures of Osteoarthritis. June 2–4, 2010 Vancouver, Canada. Podium Presentation: Session I.

363. Klocke NF, Thedens DR, Martin JA, Amendola A, Brown TD, Pedersen DR. A line profile

approach to quantify PTOA using T1rho MRI. 6th World Congress on Biomechanics, August 1–

6, 2010, Suntec City, Singapore. Podium Presentation.

364. Elkins JM, Rudert MJ, Tochigi Y, Pedersen DR, Ellis B, Callaghan JJ, Weiss JA, Brown TD.

The capsule’s contribution to total hip construct stability—A finite element analysis. 34 th Annual

Meeting of the American Society of Biomechanics, August 18–21, 2010, Providence, Rhode

Island. Podium Presentation: Computational Modeling Session.

365. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Three dimensional fracture mechanics of

ceramic total hip bearings. 34th Annual Meeting of the American Society of Biomechanics,

August 18–21, 2010, Providence, Rhode Island. Podium Presentation: Orthopaedics Session.

366. Klocke NF, Thedens DR, Martin JA, Amendola A, Brown TD, Pedersen DR. A line profile

approach to quantify PTOA using T1r MRI. 34th Annual Meeting of the American Society of

Biomechanics, August 18–21, 2010, Providence, Rhode Island. Poster Presentation.


on quantitative T1r relaxation measurements. 2010 Osteoarthritis Research Society

International (OARSI) World Congress, September 23–26, 2010, Brussels, Belgium. Poster

Presentation.

368. Pedersen DR, Thedens DR, Klocke NF, Amendola A. Semi-automated profile generation for

functional cartilage imaging. 7th Combined Meeting of the Orthopaedic Research Societies

(CORS), October 16–20, 2010, Kyoto, Japan. Poster Presentation.

369. Elkins JM, Stroud NJ, Pedersen DR, Tochigi Y, Rudert MJ, Callaghan JJ, Weiss JA, Brown TD.

The effect of regional hip capsule defects on total hip dislocation stability — A finite element

analysis. 57th Annual Meeting of the Orthopaedic Research Society, January 13–16, 2011, Long

Beach, California. Poster #1019: Session Title: Arthroplasty: Finite Element Analysis.

370. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Total hip instability in the morbidly obese

patient — A finite element exploration. 57th Annual Meeting of the Orthopaedic Research

115


Society, January 13–16, 2011, Long Beach, California. Podium Presentation: Session 03

Implant FE Modeling.

371. Klocke NF, Thedens DR, Amendola A, Martin JA, Pedersen DR. Sensitivity of T1ρ MRI to

cartilage injury after acute ACL rupture. 57th Annual Meeting of the Orthopaedic Research

Society, January 13–16, 2011, Long Beach, California. Poster #1582: Session Title: Diagnostics

Tissue and Organ Imaging.

372. Teusink MJ, Callaghan KA, Klocke NF, Pedersen DR, Johnston RC, Callaghan JJ. Femoral

remodeling around well-fixed cemented Charnley total hip Arthroplasty: A minimum twenty year

follow-up study. 57th Annual Meeting of the Orthopaedic Research Society, January 13–16,

2011, Long Beach, California. Poster #0984: Session Title: Arthroplasty: Hip, Clinical.

373. Elkins JM, Stroud NJ, Pedersen DR, Tochigi Y, Rudert MJ, Callaghan JJ, Weiss JA, Brown TD.

The effect of regional hip capsule defects on total hip dislocation stability — A finite element

analysis. 57th Annual Meeting of the Orthopaedic Research Society, January 13–16, 2011, Long

Beach, California. ORS Awards Presentation, January 15, 2011. William H. Harris Award

Winner.

374. Klocke NF, Thedens DR, Martin JA, Amendola A, Pedersen DR, Brown TD. Comparison of

compositional cartilage changes after ACL rupture as detected by T1ρ MRI. 9th Annual College

of Engineering Research Open House, April 7, 2011, Iowa City, IA. Poster Presentation.

375. Elkins JM, Pedersen DR, Tochigi Y, Callaghan JJ, Brown TD. The effect of variable

capsulorrhaphy on total hip stability. The Carver College of Medicine, College of Pharmacy,

College of Public Health, Institute for Clinical and Translational Science and VA Health System



376. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Fracture mechanics of ceramic total hip

liners during impingement. The Carver College of Medicine, College of Pharmacy, College of

Public Health, Institute for Clinical and Translational Science and VA Health System



377. Elkins JM, Pedersen DR, Yack JH, Callaghan JJ, Brown TD.Increased risk of dislocation in

morbidly obese total hip patients—A finite element analysis. The Carver College of Medicine,



2011, Iowa City, Iowa. Poster Presentation.116


378. Elkins JM, Kruger KM, Pedersen DR, Callaghan JJ, Brown TD. The influence of total hip cup

geometry on edge-loading severity in metal-on-metal bearings. The Carver College of Medicine,



2011, Iowa City, Iowa. Poster Presentation. Poster selected for Most Outstanding Entry for the

Carver College of Medicine.

379. Thedens DR, Klocke NF, Martin JA, Baer TE, Pedersen DR. Consistency of

T1measurements: A phantom study. ISMRM Annual Meeting, May 9–12, 2011, Montréal,

Québec, Canada. Poster Presentation #1099.

380. Klocke NF, Thedens DR, Amendola A, Pedersen DR, Brown TD. Towards T1rho in the clinic: A

3.0T and 1.5T comparison. OARSI 5th International Workshop on Osteoarthritis Imaging, June

8–11, 2011, Salzburg, Austria. Poster Presentation.

381. Elkins JM, Pedersen DR, Sing B, Yack JH, Callaghan JJ, Brown TD. Dislocation in the morbidly

obese total hip patient. 35th Annual Meeting of the American Society of Biomechanics, August

10–13, 2011, Long Beach, California. Podium Presentation: Orthopaedics.

382. Klocke NF, Thedens DR, Amendola A, Pedersen DR. Effects of spin-lock time selection in

T1rho relaxometry. OARSI World Congress on Osteoarthritis 2011, September 15–18, 2011,

San Diego, California. Poster Presentation.

383. Jacob M. Elkins, Thomas D. Brown, PhD, Douglas R. Pedersen, and John J. Callaghan, MD.

Advanced Fracture Analysis of 36-mm Alumina Total Hip Bearings. Summer Meeting of The Hip

Society, September 22-24, 2011. Joint Implant Surgeons, Inc. New Albany, Ohio

384. Ryan K. Takenaga, MA, MD; Nicholas A. Bedard, BS; Steve S. Liu, MD; Alison L. Klaassen, MA;

Douglas R. Pedersen, PhD; John J. Callaghan, MD. Cementless THA in Patients Age 50 and

Under at Minimum 10-Year Follow-Up: What Can Be Learned Concerning Durability of the

Construct? Poster, AAHKS 11/7/2011

385. Ryan K. Takenaga, MA, MD; Nicholas A. Bedard, BS; Steve S. Liu, MD; Alison L. Klaassen, MA;

Douglas R. Pedersen, PhD; John J. Callaghan, MD. Do We Need Pedometer Data to

Differentiate Long-Term Function Following Total Hip Replacement? Podium, AAHKS

11/7/2011.

386. Elkins JM, Pedersen DR, Singh B, Yack HJ, Callaghan JJ, Brown TD. Dislocation in the

Morbidly Obese Total Hip Patient. 35th Annual Meeting of the American Society of

Biomechanics, August 18–21, 2011, Long Beach, California. Podium presentation, Orthopedics

Session117


387. Elkins JM, Brown TD, Pedersen DR, Callaghan JJ. Advanced Fracture Analysis of 36-mm

Alumina Total Hip Bearings. Closed 2011 Scientific Meeting of the Hip Society. September 22-

24, 2011. New Albany, Ohio

388. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Bone-on-Bone vs. Implant Impingement in

Large Diameter Total Hips. 58th Annual Meeting of the Orthopaedic Research Society,

February 4-7, 2012. San Francisco, California.

389. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Toward Optimizing Orientation in Metal-on-

Metal Total Hips: Balancing Competing Considerations. 58th Annual Meeting of the Orthopaedic

Research Society, February 4-7, 2012. San Francisco, California.

390. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Edge-Scraping Wear in Metal-on-Metal Total

Hips. 58th Annual Meeting of the Orthopaedic Research Society, February 4-7, 2012. San


391. Elkins JM, Liu X, Pedersen DR, Callaghan JJ, Brown TD. Computational Fracture Analysis of

Ceramic-on-Ceramic Total Hip Liners. 58th Annual Meeting of the Orthopaedic Research

Society, February 4-7, 2012. San Francisco, California.

392. Thomas Brown, PhD; Jacob Elkins, MS; Douglas Pedersen, PhD, John Callaghan, MD.

Impingement and Dislocation in Total Hip Arthroplasty: Mechanisms and Consequences.

KappaDelta/OREF Clinical Research Award Paper. Combined 2012 Annual Meetings of the

Orthopaedic Research Society and the American Academy of Orthopaedic Surgeons, San

Francisco, CA. February 4-11, 2012.

393. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Balancing Competing Considerations for

Optimal Orientation in 36-mm Metal-on-Metal Total Hips. The 2012 American Academy of

Orthopaedic Surgeons (AAOS) Annual Meeting. February 7-11, 2012, San Francisco,

California. Podium Presentation.

394. Teusink, Matthew J; Callaghan, Katharine A.; Klocke, Noelle F; Pedersen, Douglas R; Johnston,

Richard C; Callaghan, John J. Femoral Remodeling Around Well-Fixed Cemented Charnley

Total Hip Arthroplasty: A Minimum Twenty Year Follow-Up Study. AAOS Annual Meeting, San

Diego, California. February 15-18, 2011. Poster

395. Takenaga RK, Bedard NA, Liu SS, Klaassen AL, Pedersen DR, Callaghan JJ. Cementless Total

Hip Arthroplasty in Patients Age 50 and Under at Minimum 10 year Follow-Up: What Can Be

Learned Concerning Durability of the Construct? Annual Meeting of the Mid-America

Orthopaedic Society, Bonita Springs, FA. April 18-22, 2012. 2012 E.W. Johnson, Jr. MD Physician in Training Award.

118


396. Takenaga RK, Bedard NA, Liu SS, Klaassen AL, Pedersen DR, Callaghan JJ. Do We Need

Pedometer Data to Differentiate Long-Term Function Following Total Hip Replacement? Annual

Meeting of the Mid-America Orthopaedic Society, Bonita Springs, FA. April 18-22, 2012.

397. Teusink MJ, Callaghan K, Klocke N, Pedersen DR, Johnston RC, Callaghan JJ. Femoral

Remodeling Around Well-Fixed Cemented Charnley Total Hip Arthroplasty: A Minimum 20-year

Follow-Up Study. Annual Meeting of the Mid-America Orthopaedic Society, Bonita Springs, FA.

April 18-22, 2012.

398. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Dislocation Risk in Morbidly Obese Total Hip

Patients. 30th Annual Meeting of Mid-America Orthopaedic Association. April 18-22, 2012.

Bonita Springs, Florida.

399. Pedersen DR. Acute Articular Cartilage Changes Following ACL injury: The T1 qMRI

Perspective. The ABC Fellows program, UI Sports Medicine, June 9, 2012.

400. Pedersen DR, Martin JA, Klocke NF, Thedens DR, Williams GL, Amendola A. Biopsies and

Imaging at ACL Reconstruction. Combined Osteoarthritis Initiative Imaging/ OARSI Biomarkers

workshop, July 12-14, 2012, Hilton Head, SC.

401. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Expedited computational analysis of fracture

of ceramic THA liners: Obesity and stripe wear considerations. The 2012 American Society of

Biomechanics Annual Meeting. August 17th, 2012, Gainesville, Florida. Podium presentation:

Computational Modeling.

402. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Biomechanical principles of failure in total

hip arthroplasty. The ASB Young Scientist Award Presentation. The 2012 American Society of

Biomechanics Annual Meeting. August 17th, 2012, Gainesville, Florida.

403. Callaghan JJ, Takenaga RK, Bedard NA, Pedersen DR. Long Term Follow-Up Of Cementless

THA For The Treatment Of Osteonecrosis: Have We Improved Compared To Cemented THA?

Closed Meeting of The Hip Society, September 13-15, 2012, Mayo Clinics, Rochester, MN.

404. Johnston RC, Teusink MJ, Pedersen DR, Callaghan JJ. Femoral Remodeling Around Well-

Fixed Cemented Charnley Total Hip Arthroplasty: A Minimum Twenty Year Follow-Up Study.

Closed Meeting of The Hip Society, September 13-15, 2012, Mayo Clinics, Rochester, MN.

405. Pedersen DR. Components of Finite Element Modeling of Joint Construct Stability. Keynote

Speaker: 14th Conference of Human Biomechanics at Castle Hotel Třešť November 5-7, 2012.

Czech Society of Biomechanics and Institute of Physiology, Academy of Sciences of the Czech

Republic.

119


406. Takenaga R, Callaghan J, Bedard N, Liu S, Klaassen A, Pedersen DR. Do we need

pedometer data to differentiate long-term function following total hip replacement? 59 th Annual

Meeting of the Orthopaedic Research Society, Jan 26-29, 2013. San Antonio, TX.

407. Pedersen DR, Martin JA, Thedens DR, Klocke NF, Roberts NH, Goetz J, Amendola A.

Imaging biopsy composition at ACL reconstruction. 59th Annual Meeting of the Orthopaedic

Research Society, Jan 26-29, 2013. San Antonio, TX.

408. Thedens DR, Johnson CP, Martin JA, Baer TE, Magnotta VA, Pedersen DR. Image quality

considerations for accurate quantitative T1ρ Magnetic Resonance Imaging. OARSI World

Congress on Osteoarthritis, Apr 18-21, 2013. Philadelphia, PA.

409. Bedard N, Callaghan J, Stefl M, Willman T, Liu S, Gao Y, Pedersen D, Goetz D. Fixation and

wear with contemporary components and cross-linked polyethylene at 10-years. 60 th Annual

Meeting of the Orthopaedic Research Society, Mar 15-18, 2014. New Orleans, LA.

410. Callaghan J, Greiner J, Bedard N, Liu S, Gao Y, Pedersen D, Goetz D. Fixation and wear with

contemporary acetabular components and cross-linked polyethylene at 10-years in patients age

50 and under. 60th Annual Meeting of the Orthopaedic Research Society, Mar 15-18, 2014. New

Orleans, LA.

411. Pedersen DR, Nguyen M, Thedens DR, Amendola A. Ankle distraction as a treatment for end

stage osteoarthritis: Follow-up at 10 years. OARSI World Congress on Osteoarthritis, Apr 24-27,

2014, Paris, France.

IV. SERVICE

Professional Affiliations: American Society of Mechanical Engineers (1994)American Society of Biomechanics (1985)Iowa Academy of Science (1980)Orthopaedic Research Society (1986)The Hip Society (1999)Information Technology Committee, Orthopaedic Research Society (2002–2004)Osteoarthritis Research Society International (2008)

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douglas ray pedersen birthdate: 28 september, … · web viewdouglas ray pedersen april 13, 2015 i....

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