Medial Swivel Peritalar Fracture Dislocation: A Case Report

A medial swivel peritalar fracture-dislocation is a rare and disabling foot injury. The terminology describes a peritalar dislocation as the direction of peritalar foot displacement. Medial dislocation is the most frequent type. A rare variant involves talonavicular joint dislocation, subtalar joint fracture-dislocation, and calcaneocuboid fracture-dislocation. The clinical position of the foot resembles an equinovarus deformity. A computed tomography (CT) scan is necessary to obtain a diagnosis and formulate a surgical plan. A medial swivel peritalar fracture-dislocation is a challenging injury, and because there have been few reported cases in the literature, an optimal treatment protocol has not yet been established. We present a case of an unusual fracture-dislocation pattern of the hind and midfoot causing a complex talonavicular fracture-dislocation, subtalar fracture dislocation, and calcaneocuboid fracture-dislocation. The injury was successfully treated with open reduction and internal fixation.