Snapping knee due to the biceps femoris tendon treated with repositioning of the anomalous tibial insertion.

Snapping knee associated with biceps femoris tendon that caused lateral knee pain is reported. The long head of the biceps femoris tendon had an anomalous tibial insertion in addition to the direct arm and anterior arm on the fibular head. Resection of both the anomalous tibial insertion and the anterior arm was necessary to resolve the snapping. Level of evidence IV.