Open Perineal Dislocation of the Hip With Fracture of the Femoral Head and Greater Trochanter: A Case Report

Traumati c anterior dislocation of the hip is not common and open perineal variant of the inferior type of anterior dislocation is an even rare event. We report a case of open perineal variant of the inferior type of anterior hip dislocation, with concomitant fracture of the femoral head and greater trochanter, in a 17-year-old male patient. Closed reduction of dislocation and later open reduction and fixation of the greater trochanter were performed. Eighteen months after the injury, the femoral head resorption, due to infection and avascular necrosis, led to a poor functional outcome. Open perineal variant of anterior hip dislocation can lead to very poor outcome when performed with closed reduction.