Objective[|]In this study, we aimed to evaluate the clinical and radiological results of posterior rotational intertrochanteric osteotomy used in the treatment of residual femoral head deformity.[¤]Materials and Methods[|]In this study, the clinical and radiological results of posterior rotational intertrochanteric osteotomy performed on 12 patients in our clinic were examined. The mean follow-up period was 35.4 (12-72) months. The patients were evaluated radiologically by considering the center-edge (CE) angle, femoral neck shaft angle, epiphyseal quotient and Severin classification. The patients were evaluated clinically by considering the McKay classification, leg length difference and Trendelenburg test.[¤]Results[|]The McKay clinical scores were significantly improved in the postoperative period compared to the preoperative period (p<0.05). The mean extremity shortness was 0.8 cm preoperatively and decreased to 0.2 cm postoperatively (p=0.007). While eight patients had hip pain during daily activity in the preoperative period, only one patient had hip pain during daily activity in the postoperative period. The Severin radiological scores were significantly improved in the postoperative period compared to the preoperative period (p<0.05).[¤]Conclusion[|]The short- and long-term results of posterior rotational intertrochanteric osteotomy used in the treatment of residual femoral head deformity were found to be successful both clinically and radiologically.[¤]