Reconstruction of the posterolateral corner of the knee with achilles tendon allograft.

Posterolateral corner injuries of the knee are relatively rare; however, they can result in significant long-term disability without appropriate treatment. They often occur in the setting of multiligament knee injuries, and as a result, diagnosis and management can be challenging. Severe injuries often require reconstruction, and both anatomic and nonanatomic techniques exist. We describe our preferred operative technique to reconstruct the fibular collateral ligament and posterolateral corner using a single Achilles tendon allograft.