Acute rupture of the peroneal longus tendon in a runner: a case report and review of the literature.

Abstract

Traumatic rupture of the peroneal longus tendon is rare and the diagnosis may be difficult. Swelling and tenderness about the lateral aspect of the ankle, increased hindfoot varus, and pain with active eversion are helpful clinical signs. Magnetic resonance imaging may be helpful in making the diagnosis. We present the case of a patient who sustained an acute rupture of the peroneal longus tendon. The tendon was repaired primarily and the patient was able to return to running. A high index of suspicion is required to prevent a delay in the diagnosis and further disability.