[Recurrent traumatic hip dislocation in a child].

Abstract

Recurrent traumatic hip dislocation is rarely seen in childhood. We presented a case of traumatic hip dislocation which was treated by conservative methods. A two-year-old girl was treated with closed reduction and a hip spica cast for posterior traumatic dislocation in the right hip. Two years later, a recurrent dislocation occurred following a minor trauma on the same side. She was again treated with closed reduction and immobilization with a hip spica cast for three weeks followed by a three-week load bearing restriction. Early follow-up examinations showed an increased internal rotation of the hip compared to the left side, suggesting increased posterior capsular laxity. It then disappeared on her final follow-up at age six and magnetic resonance imaging showed no evidence for avascular necrosis or capsular laxity. She was asymptomatic and her physical examination was within normal limits. Of note, several members in her family had developmental dysplasia of the hip.