Bernese Periacetabular Osteotomy for Treatment of Acetabular Dysplasia

Kim, Hui Taek; Choi, Sung Jong; Yoo, Chong Il

Abstract

PURPOSE
To evaluate the clinical and radiologic results of Bernese periacetabular osteotomy in treating acetabular dysplasia. MATERIALS AND METHODS: We evaluated the results of 24 Bernese periacetabular osteotomies performed in 21 patients (18 female, 3 male). The osteotomies were performed through an ilioinguinal approach in 20 cases, and dual (anterior and posterior) approaches in 4 cases. The mean age of the patients at the time of surgery was 23.4 years (range, 13.1-36 years). The average follow-up period was 26 months (range, 12-48 months). The Harris hip score was used for clinical evaluation. Radiological changes of acetabular angle, CE angle, acetabular depth, and femoral head coverage were measured. RESULTS: Clinically, the mean Harris hip score improved from 59.3 preoperatively to 88.3 postoperatively. All four radiological measurements improved significantly after surgery (Wilcoxon Rank Sum test, p<0.05). The following complications were noted: superficial skin infection (1 case), posterior column fracture (3 cases), temporary sciatic nerve symptoms (2 cases), and conversion to total hip arthroplasty (2 cases). CONCLUSION: Bernese periacetabular osteotomy is an effective surgical treatment for acetabular dysplasia in adults.