Abstract
Posterior cruciate ligament (PCL) tears with concomitant medial collateral ligament (MCL) or posteromedial injuries are a rare but recognized injury pattern. Unlike the posterolateral corner (PLC), the medial side generally has a higher potential to heal conservatively. Nevertheless, we have a low threshold to surgically address the medial side if significant instability exists in a PCL deficient knee. Bergfeld et al. showed that complete injuries to the superficial MCL in combination with the PCL led to increased laxity in internal tibial rotation and significant increases in posterior tibial translation (1). They recommended restoration of the MCL in combined PCL-MCL injuries to restore normal knee biomechanics.
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