髋关节置换术后翻修原因分析

１９７４年～１９９１年对２６４例老年股骨颈骨折、股骨头缺血坏死、髋关节骨性关节炎患者行髋人工关节置换，其中人工股骨头置换１５０例，全髋关节置换１１４例。术后因假体松动、下沉、脱位，髋臼磨损等原因，引起患者疼痛，功能障碍而行翻修术１５例，翻修率为５．７％，翻修时间为术后５年～１６年，平均７．４年。翻修手术为人工股骨头再置换术３例，全髋关节置换术１２例。翻修术后随访２年～６年，平均４．７年。按Ｊａｃｏｂｓ法评价，优１１例，占７３％；良３例，占２０％；可１例，占７％。翻修原因主要与假体松动、下沉，髋臼磨损，髋臼软骨切取不彻底，臼窝太浅，植入假体时存有血迹等有关。

ANALYSIS OF CAUSES OF REVISION AFTER HIP REPLACEMENT

From 1974 to 1991, two hundred and sixty-four cases of hip replacement were performed. These cases composed of 150 cases of artificial femoral head prosthesis replacement and 114 cases of total hip replacement. Fifteen cases were revised after the first replacement in 7.4 years average (5-16 years). The revision rate was 5.7%. The causes of revision were loose or subside of prosthesis, wear and tear of acetabulum, dislocation of artificial hip joint, etc, which caused pain and dysfunction. The revision cases were followed up for 4.7 years average with good result. To prevent revision, The medully canal shonld not be too wide and in osteoporosis cases, bone cement was suggested to apply. The chondrium of acetabulum should be removed completely.