shoulder injuries: treatments that work, do not work, and ... · humeral neck fracture outcomes...
TRANSCRIPT
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Shoulder Injuries: Treatments that Work, Do Not Work, and When
ENOUGH is Enough?
Mark Ganjianpour, M.D. Beverly Hills, CA
April 20, 2012
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Bony Anatomy Multiaxial ball and socket Little Inherent Instability Glenohumeral Joint Dual Innervation by Axillary and Suprascapular Nerves AC Joint Dual Innervation by Suprascapular and Pectoral Nerves
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Soft Tissue Anatomy Soft Tissue – Rotator Cuff Tendon – Biceps tendon – Subscapularis – Rotator interval – Bursa – CA ligament – AC ligaments – Labrum/Ligaments
Physical Exam – Essential – Low sensitivity/specificity
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Fractures General Principals of Fracture Care Safe and Early Mobilization Humeral Neck Fracture Outcomes Trend Better with ORIF vs Hemiarthroplasty – Bell etal JBJS Am. 2011
30% ORIF 20% hemiarthroplasty
Scapula and Glenoid Fractures ORIF rarely Indicated
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Unusual Fractures
Unstable Os Acromiale – Pagnani J shoulder and Elbow Surg 2006
Floating Shoulder – Disruption of
Suspensory Complex – ORIF Clavicle
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Overuse Injuries
Impingement Syndrome Tendonitis Myofascial Pain Syndrome AC Joint Inflammation
Conservative Treatment for 3-4 months – Activity Modification (Work
restrictions) – NSAID – Injections – Ergonomic Evaluation – Physical Therapy
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Impingement Syndrome Primary – Rotator Cuff and
Subacromial space – Age >40 – Bone Spur – Respond to SAD
Secondary – Instability or other causes – Age <40 – Worsening of Symptoms with
SAD
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Referred Shoulder Pain Cervical Spine Disc – C3 & C4 nerve
roots
Pancoast Tumor – Non-small Cell
tumor – Apex of the lung – Chest X-ray
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Rotator Cuff Anatomy
Rotator Cable (Burkhart 1994) – Articular Extension
of coracohumeral ligament
– Crescent shape around Codman’s “Critical Zone”
HypoVascular – Articular < Bursal
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Natural History k. Yamaguchi J shoulder Elbow Surgery 2001
5 year follow up Partial or full thickness rotator cuff tears 51% symptomatic 50% of patients showed progression of Rotator cuff tear No patients showed decrease in size or healing of rotator cuff tear without surgery
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Treatment for Partial RC Tear <50% – Debridement – +/- Subacromial
Decompression >50% – Complete & Repair – PASTA Repair
Foot Print approx 16mm Bursal Sided Tear
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Indications ACOEM (page 210-211) – Significant tear – Weakness of arm
elevation – Younger worker – Fail none operative
treatment for 3 months – Acute full thickness RC
tears should be treated non-operatively with up to 86% success
Evidence Based Medicine – Age – Symptoms – Size – Activity Level – Available Tissue – Ability to comply with post
operative care/rehab – Acute full thickness RC tear
is an indication for surgery
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Full Thickness RC Tear Goutallier, D etal.; Shoulder and Elbow Surgery 2003
Fatty Degeneration – Grades 0-5 – Grade 2 and above have
significant reoperation rates Muscle Atrophy Tendon Retraction/mobility Preop Range of Motion Force Couple/Subscap integrity
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Tear Pattern
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Repair Technique Severud etal, Arthroscopy 2003
Arthroscopic Vs Mini Open – ROM – Pain/Scar – Re-tear Rate (20-80%
with both techniques) – Perceived Patient
Satisfaction
Single Vs Double Row
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SLAP Tears
Four Types Type I degenerative Great variations in Biceps anchor anatomy Mechanism of Injury – Arm abducted/outstretched – Sudden downward motion
on the arm (Eccentric) – Peel back mechanism
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SLAP Tears Kim etal, JBJS 2003
SLAP Lesions without other associated findings is uncommon Often other lesions are responsible for the symptoms Recent trends towards less operative treatment and more rehab Significant Stiffness and pain with repair of asymptomatic Biceps lesions
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Choice of Anchor Park etal, Arthroscopy 2011
PLL Anchors are associated with higher failure of SLAP repairs Reoperation rate up to 24% Be aware of using absorbable anchors around the glenoid Recommend non-absorbable anchors (PEEK, metal, all suture)
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GH Dislocation Traumatic First Time Vs Recurrent Natural History – 66% recurrence – Younger > Older
Factors to consider – Bankart vs humeral capsular avulsion – Hill Sacs lesion – Glenoid Bone loss – Activity Level/Occupation
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Treatment of Dislocations Closed treatment with immediate external rotation sling (not practical in WC System) Recurrent dislocation requires operative treatment – Repair Bankart lesion – Posterior GH Ligament
balancing stitches – Engaging Hill Sacs lesion – CT better than MRI to
evaluate Glenoid
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Glenoid Bone loss Burkhart etal, Arthroscopy 2000
High failure rate with Glenoid Bone loss>25% Bone augmentation (Latarjet)
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Engaging Hill Sacs Lesion
Remplissage
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Results in WC vs None-WC Patients
Holtby etal, Impact of WC claims on RC related pathologies. J shoulder Elbow Surg. 2010. – Injured workers showed statistically significant
improvement 1 year following SAD or RC repair although with higher level of disability.
Kemp etal, RC tear in WC patients, Occup Med (lond), 2011 – Canadian Study concluded that WC patients benefit
from treatment, but results are inferior
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Results in WC vs None-WC Patients
Henn etal, Patients with workers’ compensation claims have worse outcome after rotator cuff repair. JBJS Am, 2008 – HSS study concluded that “existence of a workers’
compensation claim portends a less robust outcome following rotator cuff repair”.
Verma etal, Outcome arthroscopic repair of type II SLAP lesions in WC patients. HSS J. 2007. – WC patients do show improvement, but results are
inferior
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Results in WC vs None-WC Patients
Park etal, Am J Sports Med. 2011 (Revision SLAP Repair) Balyk etal, Clin Orthop Relat Res. 2008 (Level I Evidence) Pedowitz, etal, Optimizing the management of rotator cuff Problems, J Am Acad Orthop Surg. 2011 – Consenses statement “surgeons can advise
patients that workers’ compensation status Correlates with less Favorable outcomes after rotator cuff surgery”.
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ENOUGH is Enough! Patients perception of well being in WC system Treat objective findings based on evidence based Medicine Encourage self responsibility for own well being Patients with longer litigated workers comp generally have worse outcome
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THANK YOU
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