Short-Term Follow-up Results of Periacetabular Osteotomy for Hip Dysplasia

ABSTRACT

PURPOSE: To evaluate the clinical and radiologic results of periacetabular osteotomy for the treatment of hip dysplasia. MATERIALS AND METHODS: We performed a clinical and radiological assessment of 20 periacetabular osteotomies (19 patients), which had been followed up for > 1 year. The mean age of the patients at the time of surgery was 34.2 years (range, 18~50 years). The average follow-up period was 26.7 months (range, 12~85 months). The Harris hip score and range of motion were used for clinical evaluation. The radiologic measurements were evaluated using the acetabular angle, center-edge angle, acetabular depth, femoral head coverage, and medialization. RESULTS: The mean Harris hip score improved from 59.6 points to 96.4 points. The mean acetabular angle improved from 47.9 degrees to 26.4degrees. The mean center-edge angle increased from 14.2degreesto 41degrees. The acetabular depth increased from 176 to 242.7 The mean femoral head coverage increased from 63.3% to 95.4%. The following complications were noted: hematoma in 2 cases, temporary lateral femoral cutaneous nerve palsy in 3 cases, and superficial wound infection in 1 case. CONCLUSION: Periacetabular osteotomy is an effective surgical treatment for hip dysplasia.