Combined injuries of the anterior cruciate ligament and posterolateral corner

Rupture of the anterior cruciate ligament (ACL) is a common injury seen by orthopedists. When diagnosing and treating ACL injuries, it is important to carefully evaluate for concomitant injuries to the knee. The stability and kinematics of the knee depends on the successful interaction of the knee ligaments, muscles, menisci, and articular surfaces. Injury to additional structures may cause the normal kinematics and long-term function may be further compromised (1). The success of ACL reconstruction is dependent on the surgeon’s ability to identify and address injuries not only to the ACL, but also to the secondary stabilizers of the knee (2–4). Recent attention has been directed toward associated injuries of the ACL and the posterolateral corner (PLC).