Long-term results of total hip arthroplasty with transverse subtrochanteric shortening osteotomy in developmental high dislocation of the hip

In this study we aim to evaluate the functional and clinical results and complications of developmental high-dislocated hips after subtrochanteric transverse shortening osteotomy. The femoral osteotomies all fixed axially and rotationally by rectangular cementless stem. The acetabular components placed to the true acetabulum. Results of 50 primary cementless total hip arthroplasties in 28 patients all having Crowe 4 high dislocations were evaluated. Arthroplasties were performed in combination with a subtrochanteric transverse shortening osteotomy and Zweymuller femoral stem without any fixation instruments for the osteotomy. The acetabular component placed at the level of anatomic hip center. The mean follow-up was 102 months (72-132 months). The mean Harris Hip Score increased from 24.03 to 82.88 points at the time of final follow-up. Ten of the 50 hips had early or late minor complications and/or reoperations including debridement and irrigation. None of the subtrochanteric osteotomies were followed for nonunion or malunion, and there were no complications concerning the femoral site throughout the postoperative follow-up period.