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Hip flexors
1%
12/1804
Hip abductors
23/1804
Gastroc-soleus
19/1804
Quadriceps
62%
1127/1804
Hamstrings
33%
602/1804
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The primary function of the PCL complex is to restrict posterior tibial translation. After acute PCL rupture or PCL reconstruction, resisted hamstring strengthening is avoided as it pulls the tibia posteriorly. Therefore, therapy should focus on quadriceps strengthening which pulls the tibia anteriorly. The Irrgang paper describes rehabilitation principles for multi-ligament knee injuries. The Wind Article is a review which includes rehabilitation priciples for both non-op and operative PCL treatment. The Harner paper is a similar but earlier review. Figure A shows the double bundle (AL and PM) origin of the PCL onto the medial femoral condyle of the left knee as viewed from the anterolateral portal. Illustration A depicts how the quadriceps can compensate for a PCL deficient knee.
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