Traumatic asymmetrical bilateral hip dislocation: A case report

Traumatic asymmetric bilateral hip dislocations, with one hip dislocated posteriorly and the contralateral hip dislocated anteriorly, are a rare injury pattern. It represents approximately 0.01% to 0.02% of all hip dislocations. The most common mechanism of injury is motor vehicle accident. Herein, we report a case of traumatic asymmetric bilateral hip dislocation caused by high energy accident. The patient suffers from a hit to his lumbosacral area by a falling tree weight approximately 200 kg from behind. Pelvic X-ray revealed anterior-inferior dislocation of right hip, posterior fracture dislocation of left hip, and right tibia-fibula fracture. He received emergent close reduction followed by open reduction and internal fixation of left hip posterior acetabulum wall fracture and right tibia-fibula fracture. Union of fracture noted 4 months after surgery and the patient ambulates well with no walking aid. No definite osteonecrosis or arthrosis was found during the 2-year follow-up.