先天性髋关节发育不良(developmental dysplasia of the hip ，DDH)是临床比较常见的髋关节疾病，发病率为0.4%~1.0%。由于髋臼对股骨头包容性较差，故经常导致髋关节继发性骨关节炎[1]。对于髋关节功能较差的DDH，首选全髋关节置换术(total hip arthroplasty， THA)。由于髋臼及股骨头形态发生明显改变，其手术难度较一般髋骨性关节炎明显增大。2008-03至2015-03，我科DDH患者35例(42髋)行THA术，术后关节功能明显改善，疗效满意。
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