Are the popliteofibular ligament, the arcuate ligament, and the fibular insertion of the popliteus muscle the same structure? An anatomic and terminological study.

Lesions in the lateral region of the knee can result in severe disability due to instability and articular degeneration. The structures in the posterolateral side of the knee function as a unit contributes to rotation and translation limits. Anatomical descriptions of the lateral corner of the knee are incomplete and contradictory.