A case of traumatic anterior dislocation of the hip with ipsilateral subtrochanteric fracture in a child is presented. The dislocated femoral head occluded the femoral artery. Closed reduction, which was easy, proved unstable. It was found that the pull of abductors and external rotators acting on the short proximal fragment forced the femoral head to slide through the tear in the anterior capsule. This necessitated open reduction and internal fixation of the fracture to control the position of the proximal fragment. Literature review showed that this combined injury is extremely rare; only one case with this combined injury was mentioned in the literature but without details.