A Rare Case Report About Reduction of Irreducible Traumatic Posterior Hip Dislocation With Open Safe Surgery

Traumatic hip dislocation is an orthopedic emergency that requires rapid evaluation and reduction. It may cause severe morbidities like avascular necrosis and posttraumatic osteoarthritis in the long term. This case report discusses a traumatic hip dislocation treated with open reduction using trochanteric osteotomy. A 50-year-old female driver experienced a posterior superior right hip dislocation following a traffic accident. Under sedation in an emergency room, closed reduction was attempted, but the reduction of the hip was not achieved. Under general anesthesia, closed reduction was reattempted, but then performing an open surgery was decided because of the unsuccessful reduction. It was understood that the femoral head tore the posterior labrum and passed out by penetrating the posterior capsule causing the buttonhole phenomenon; therefore, closed reduction was not accomplished. Irreducible traumatic hip dislocations are rare cases in the literature. The buttonhole phenomenon should be considered unless closed reduction can be achieved, and open surgical methods should be preferred.