Unusual malleolar fracture of the ankle with talocalcaneal coalition treated by arthroscopy-assisted reduction and percutaneous fixation

Excerpt

Talocalcaneal coalition is an uncommon condition that is characterized by nonspecific symptoms such as vague pain of the hindfoot that often follows minor injuries such as repeated ankle sprain [16]. Most patients with talocalcaneal coalition have no symptoms, and thus generally require no treatment [4, 9, 12‐16]. However, several authors have reported that restriction of the subtalar joint increases mechanical stress on the talocrural joint, which may lead to disruptions of the talocrural joint, or may cause peroneal spastic flat foot [4, 9, 12, 19]. We report herein a case of an unusual malleolar fracture of the ankle with talocalcaneal coalition, in which abnormal force may have been applied to the ankle mortise due to restriction of the subtalar joint motion, and may have produced the observed severe articular surface incongruity. …