This study is to determine the survival and outcomes of the Birmingham Interlocking Triple Pelvic Osteotomy. A dysplastic hip predisposes to early arthritis. The Triple Pelvic Osteotomy (TPO) is a joint-preserving option for the treatment of young adults with hip dysplasia. The long term success of the procedure is not known. The senior author has been performing Birmingham Interlocking Triple Pelvic Osteotomies for 18 years. The outcomes of the first 100 patients (117 TPOs) were reviewed using postal questionnaires, telephone interviews and radiograph review. The primary outcome measure of the study was the Kaplan—Meier survival curve for the TPO. Hip replacement or resurfacing were taken as failure points. The Oxford Hip Score (OHS) and University of California, Los Angeles (UCLA) score were used as secondary outcome measures for the surviving osteotomies. The pre-and post-operative acetabular index and centre-edge angles were measured from surviving radiographs.Purpose of study
Patients and methods