PMC6879996_01
a. Pre-operative clinical examination showing no deformity or wound; b. Peroneal longus tendon dislocation test.
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Local physical examination of the left ankle reveals no deformity or wound (Fig. 1a). The peroneal longus tendon dislocation test was positive (Fig. 1b).
Pre-operative X-ray of both ankle.
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a. Dissection at retinaculum ligament and resection of fibrotic tissue at peroneus longus tendon; b. Osteotomy at the tip of lateral malleolus and drilling of intramedullary; c. Fixation of the posterolateral and posteromedial edges of peroneal groove with cortical screw and repair of retinaculum ligament.
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We performed Peroneal groove deepening and Retinaculum ligament repair procedure to treat this condition (Fig. 4).