Morrey B F, Ilstrup D
Department of Orthopaedics, Mayo Clinic, Rochester.
J Bone Joint Surg Am. 1989 Jan;71(1):50-5.
Fifty-nine revisions that were done for aseptic acetabular loosening after 6,128 total hip arthroplasties for degenerative arthritis or traumatic arthritis were studied. These revisions were in forty-four (approximately 1 per cent) of 4,576 hips that had a twenty-two-millimeter femoral-head component, in two of 520 that had a twenty-eight-millimeter femoral-head component, and in thirteen (approximately 2.5 per cent) of 487 that had a thirty-two-millimeter femoral-head component. Therefore, the thirty-two-millimeter femoral component was associated with the highest rate of acetabular revision (p less than 0.001). The dimensions of the acetabular wall were thinner in the hips that had the thirty-two-millimeter component than in those that had the twenty-two-millimeter component (p less than 0.05). Multivariate analysis demonstrated a significantly increased risk of acetabular loosening in men and in patients who were less than sixty years old.
对6128例因退行性关节炎或创伤性关节炎行全髋关节置换术患者中发生无菌性髋臼松动而进行的59次翻修手术进行了研究。这些翻修手术发生在4576例使用22毫米股骨头假体的髋关节中的44例（约1%）、520例使用28毫米股骨头假体的髋关节中的2例以及487例使用32毫米股骨头假体的髋关节中的13例（约2.5%）。因此，32毫米股骨假体与髋臼翻修率最高相关（p<0.001）。使用32毫米假体的髋关节髋臼壁尺寸比使用22毫米假体的髋关节更薄（p<0.05）。多变量分析表明男性及年龄小于60岁的患者髋臼松动风险显著增加。
