Objective: To evaluate the functional and radiographic results of Staheli’s acetabuloplasty as therapeuticoption in the surgical treatment of Legg-Calvé-Perthes’s disease of late debut. Material and method:we did a retrospective study of seven patients with Legg-Calvé-Perthes’s disease treated by means of Staheli’sacetabuloplasty with an average follow-up of three years and three months. We analyzed clinical parameters(preoperative and “end of the follow-up” mobility) as well as radiographic parameters (Herring’s classification,Heyman-Herndon’s index and Wiberg’s center-edge angle) before the surgical treatment, after the surgical treatmentand at the end of the follow-up. Results: Any patients presented complications due to the surgery. The physicalexploration showed an average improvement of 10º in the internal rotation of the hip. After the statisticalanalysis of the radiographic indexes (Heyman-Herndon’s index as well as Wiberg’s angle), there were statisticallysignificant differences between the preoperative X-ray and the postoperative one, but there were no statisticallysignificant differences between the postoperative one and the X-ray done at the end of the follow-up. Therefore,the radiographic indexes showed an improvement in these parameters that in addition kept stable in time. Conclusions:The technic of acetabuloplasty according to Staheli is a surgical option that leads to a good radiographicand functional result with few complications due to the procedure.

Objective: To evaluate the functional and radiographic results of Staheli’s acetabuloplasty as therapeuticoption in the surgical treatment of Legg-Calvé-Perthes’s disease of late debut. Material and method:we did a retrospective study of seven patients with Legg-Calvé-Perthes’s disease treated by means of Staheli’sacetabuloplasty with an average follow-up of three years and three months. We analyzed clinical parameters(preoperative and “end of the follow-up” mobility) as well as radiographic parameters (Herring’s classification,Heyman-Herndon’s index and Wiberg’s center-edge angle) before the surgical treatment, after the surgical treatmentand at the end of the follow-up. Results: Any patients presented complications due to the surgery. The physicalexploration showed an average improvement of 10º in the internal rotation of the hip. After the statisticalanalysis of the radiographic indexes (Heyman-Herndon’s index as well as Wiberg’s angle), there were statisticallysignificant differences between the preoperative X-ray and the postoperative one, but there were no statisticallysignificant differences between the postoperative one and the X-ray done at the end of the follow-up. Therefore,the radiographic indexes showed an improvement in these parameters that in addition kept stable in time. Conclusions:The technic of acetabuloplasty according to Staheli is a surgical option that leads to a good radiographicand functional result with few complications due to the procedure.