Cemented total hip arthroplasty with transverse subtrochanteric shortening osteotomy for Crowe group IV dislocated hip.

A consecutive series of 19 cemented total hip arthroplasties with transverse subtrochanteric shortening osteotomy was performed for Crowe group IV hip, with a mean follow-up of 38 (6-96) months. The osteotomy sites were covered with onlay grafts of the excised fragments. The conditions of the osteotomy sites were classified into 3 types according to the presence of a remaining gap and cement interposition within it. Three cases had a noticeable gap, and 2 of them showed cement interposition. All osteotomy sites became united involving the onlay grafts, with an average time to union of 4.9 (3-8) months. Our findings suggest that cemented total hip arthroplasty with subtrochanteric transverse osteotomy provides satisfactory short-term results without major complications for Crowe group IV hip.