pcl inlay reconstructions and case … inlay reconstructions. and case presentation. ... rehorn mr,...
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PCL INLAY RECONSTRUCTIONS
AND CASE PRESENTATION
Management of Different Scenarios of PCL Injuries
Sergio Rocha PiedadeAssociate Professor State University of Campinas – UNICAMP
Coordinator Exercise and Sports Medicine FCM/UNICAMP
Campinas - Brasil
anatomical particularities (PCL tibial insertion)
diagnosis (to investigate associate ligament injuries)
mechanical stress to the graft tendon (“Killer turn”)
PCL RECONSTRUCTION
Piedade, SR, Servien E, Lavoie F, Neyret P. Classification of Knee Laxities. The Knee Joint - Surgical Techiniques and strategies. In: Bonin M, Amendola A,Bellemans J, MacDonald S, Menetrey J. The Knee Joint. Surgical: Techniques and Strategies, Paris: Springer-Verlag 2012:p.85-93.
Badet R, Verdonk P, Piedade SR. Technique in PCL reconstruction: Mini posterior approach. In: Bonin M, Amendola A, Bellemans J, MacDonald S, Menetrey J.The Knee Joint. Surgical: Techniques and Strategies, Paris: Springer-Verlag 2012:p.411-15.
↓↓ interest of many knee surgeons
biomechanical behavior
“during the maturation phase, the graft tendon (“new ligament”)
is more vulnerable to mechanical stress and the occurrence
of graft elongation and fail (“creep phenomenon”)
Rehorn MR, Schoroer AK, Blemker SS. The passive properties of muscle fibers are velocity dependent. J Biomech. 2014 Feb;47(3):687-93
PCL RECONSTRUCTION
Piedade SR, Miranda JB e Buendia LA. Lesão do Ligamento Cruzado Posterior – Apresentação de 12 casos tratados cirurgicamente. 6° CONGRESSO DA SBCJ - Belo Horizonte/MG, l995
BTB + synthetic ligament (⇓ mechanical stress to the graft)
passage of the graft into the tibial tunnel (difficulties → bone block)
synthetic ligament fails (6 months-FU) ⇒ posterior instability returns
Personal experience with PCL reconstruction
1992
tibial tunnel technique
“killer turn”
“learning curve”
the need of changing the patient’s decubitus
2002
increasing the time of surgery;
Is it a limiting factor for one-stage bicruciate reconstruction?
PCL TIBIAL INLAY RECONSTRUCTION
BTB harvesting
dorsal decubitus
PCL TIBIAL INLAY RECONSTRUCTION
Piedade SR et al. Knee P.C.L. reconstruction: a tibial bed fixation ("INLAY") technique. Objective and subjective evaluation of a 30-cases series.
Acta ortop. bras. [online]. 2006, vol.14, n.2, pp.92-96. . Acta ortop. bras., 2006, vol.14, no.2, p.92-96.
approaching the posterior aspect of the knee joint
ventral decubitus
PCL TIBIAL INLAY RECONSTRUCTION
tibial slot 2mm narrower than the bone block (“press-fit effect”);
deeping the tibial slot (impactor);
pull-out (better control of graft tension)
preparing the tibial slot
PCL TIBIAL INLAY RECONSTRUCTION
Do we need to change the patient’s decubitus?
Stannard JP, McKean RM. Anatomic PCL Reconstruction:
The Double Bundle Inlay Technique. Operative
Techniques in Sports Medicine 2009;17(3):148-155.
Richter D, Wascher DC, Schenck Jr. RC. A Novel Posteromedial
Approach for Tibial Inlay PCL Reconstruction in KDIIIM
Injuries. Avoiding Prone Patient Positioning. Clin Orthop Relat
Res 2014; 472:2680–26902009;17(3):148-155.
in the literature
male, 32 years old;
motorcycle accident;
left knee trauma.
Physical
examination
anterior and posterior instability of left knee;
Case presentation 1 - one-stage Bicruciate reconstrution
male, 28 years old;
motorcycle accident;
right and left knee trauma.
Physical examination
anterior and posterior instability of left knee;
posterior instability of right knee;
Case presentation 2 - one-stage Bicruciate reconstrution