Abstract
Peroneal tendon dislocation in association with medial malleolus fracture is a very rare traumatic injury to the ankle. A 19-year old male patient was referred after injury sustained in a motorcycle accident with car, with concomitant traumatic peroneal tendon dislocation and medial malleolus fracture. The possible mechanism of this unusual injury could have been sudden external rotation force to the pronated foot in full dorsiflexed position of the ankle. Diagnosis of peroneal tendon subluxation or dislocation should be carefully evaluated in patients with single medial malleolus fracture.
Highlights
Peroneal tendon subluxation or dislocation is a rare traumatic injury to the ankle
We describe a case of minimally-displaced medial malleolus fracture in association with avulsion fracture of superior peroneal retinaculum to show the importance of small flake fractures around the ankle joint
Peroneal tendon subluxations have been classified by Eckert and Davis[4]
Summary
Peroneal tendon subluxation or dislocation is a rare traumatic injury to the ankle. Medial malleolus fracture usually occurs in association with fractures of lateral malleolus, posterior malleolus, proximal fibula, or with ligamentous injuries around the ankle joint. Concomitant traumatic peroneal tendon dislocation and medial malleolus fracture have been rarely reported in the literature[2,3].
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