Reconstruction of traumatic complete loss of the medial collateral ligament: a case report.

An unusual problem with traumatic complete loss of the medial collateral ligament in a 23-year-old man with a gunshot injury, was solved by transfer of the medial head of the gastrocnemius. At one-year follow-up the patient had returned to work with satisfactory functional results with respect to stability, strength, and range of motion. The medial head of the gastrocnemius provided a substantial buttress and effectively performed the function of the collateral ligament.