Irreducible Fracture-Dislocation of the Ankle Associated With Interposition of the Tibialis Posterior Tendon in the Syndesmosis: A Case Report.

Although ankle fracture-dislocations are common orthopedic injuries, it is very uncommon for them to be irreducible, and such cases require special attention. We report the case of a closed fracture-dislocation of the ankle in a 17-year-old male that required 3 surgeries because of persistent anterior subluxation of the talus on the postoperative radiographs. After advanced radiologic investigations, tibialis posterior tendon interposition in the syndesmosis was identified as the cause of the subluxation.