Nontraumatic Bilateral Recurrent Peroneal Tendon Dislocation with Pes Planovalgus: A Case Report

Peroneal tendon dislocation is a relatively infrequent problem. Most cases are traumatic, and nontraumatic cases are rare. In this case, a 21-year-old man had nontraumatic bilateral recurrent peroneal tendon dislocation on standing and pes planovalgus. We performed medial displacement osteotomy of the calcaneus for the pes planovalgus and reattachment of the retinaculum and groove deepening for the peroneal tendon dislocations.

The dislocations were attributed to the force of the tendon riding up the lateral malleolus on standing because of pes planovalgus. A good outcome was achieved by surgical intervention for both the pes planovalgus and peroneal tendon dislocations.