We experienced a 26-year-old male who suffered from post-traumatic recurrent dislocation of the peroneal tendons over the past 3 years. The patient was injured during sports. Transposition of the peroneal tendons under the calcaneofibular ligament was chosen from the many different surgical techniques to treat the peroneal tendon dislocation. The ruptured superior peroneal retinaculum was reconstructed by rerouting of the calcaneofibular ligament to the lateral side of the peroneal tendons. The calcaneal insertion of the calcaneofibular ligament was mobilized with a small bone block and reinserted in its bed after the transposition. After the operation, the ankle joint was immobilized for 6 weeks in a short-leg plaster cast. Partial weight-bearing was allowed after 2 weeks. After 4 months post-operatively, the patient was able to resume sports. He sometimes suffered from swelling and slight pain around the lateral malleolus but was satisfied with the good results.
