Posterior Tibialis Tendon Dislocation: Case Report and Review of Literature

Posterior tibialis tendon (PTT) dislocation is an extremely rare yet significant finding in cases with recalcitrant pain over the medial malleolus, usually as a consequence of trauma. The diagnosis is frequently delayed, as the patient's initial clinical presentation generally resembles benign musculoskeletal pathology of the ankle joint. Herein, we report the case of a female patient diagnosed with PTT dislocation after four weeks of conservative management for an ankle sprain. Surgical intervention, including retromalleolar groove-deepening and repair of flexor retinaculum with intraosseous suture anchors, proved to be successful after a mean follow-up of 12 months. A thorough literature review was conducted regarding the aforementioned injury, concluding that PTT dislocation-in spite of its rarity-should be included in the differential diagnosis of patients with importunate pain on medial malleolus after an ankle injury.