Transphyseal fracture-dislocation of the femoral neck: a case report and review of the literature.

We describe a case of transphyseal hip fracture-dislocation in a 7.5-year-old patient who was treated initially by open reduction and internal fixation. Soon after the injury, the femoral head developed avascular necrosis. The treatment was focused on maintaining adequate hip range of motion and providing femoral head containment with a combined subtrochanteric femoral osteotomy and shelf acetabuloplasty. The patient's young age and good hip remodeling potential contributed to the favorable clinical outcome 3 years after the injury. The long-term prognosis remains guarded, however.