A Rare Case Report of Congenital Subtalar Dislocation

Congenital dislocation of the subtalar joint is a very rare deformity and one of the causes of the calcaneovalgus foot. Only 2 cases were reported earlier in the literature. We are reporting the third case. A seven year old female child came to our hospital with a deformity of the left foot noticed by parents at birth. There was no history of trauma. The patient was treated in early childhood with casting. On examination the foot was in severe valgus and the patient was bearing weight on the medial malleolus. Calcaneus was displaced laterally. Radiographs and a CT scan of the left foot confirmed the diagnosis of a congenital subtalar dislocation. Surgical correction was achieved through lengthening of various tendons and release of subtalar joint followed by fixation with a K wire. Keywords: Congenital subtalar dislocation, Calcaneovalgus foot, K wire fixation, Ankle foot orthosis