Woo R Y, Morrey B F
J Bone Joint Surg Am. 1982 Dec;64(9):1295-306.
During the ten-year period ending in 1978, 10,500 conventional total hip arthroplasties were performed at the Mayo Clinic; dislocation developed after 331 (3.2 per cent) of these procedures. Cross correlations of the data were performed using multivariate analysis. This analysis showed that previous surgery on the hip was the most significant of the factors predisposing to dislocation, the incidence doubling from 2.4 per cent (in hips without previous surgery) to 4.8 per cent (in hips with previous surgery) (p less than 0.001). The dislocation rate was 2.3 per cent after an anterolateral approach and 5.8 per cent after a posterior approach (p less than 0.01). The size of the head of the femoral component was not a strongly influential factor. The incidence of dislocation was 17.6 per cent in the hips that had osteotomy and avulsion of the greater trochanter, compared with 2.8 per cent in those in which the trochanteric osteotomy united (p less than 0.001). Reoperation for instability of the hip was performed in a third of the patients, but in 31 per cent of the patients whose hip was reoperated on the instability persisted after the revision.
在截至1978年的十年间，梅奥诊所共进行了10500例传统全髋关节置换术；其中331例（3.2%）术后出现脱位。采用多变量分析对数据进行交叉相关性分析。该分析表明，既往髋关节手术是导致脱位的最主要易感因素，脱位发生率从2.4%（既往无手术史的髋关节）翻倍至4.8%（既往有手术史的髋关节）（p<0.001）。前外侧入路术后脱位率为2.3%，后外侧入路术后脱位率为5.8%（p<0.01）。股骨假体头部尺寸并非强烈影响因素。大转子截骨并撕脱的髋关节脱位发生率为17.6%，而大转子截骨愈合的髋关节脱位发生率为2.8%（p<0.001）。三分之一的患者因髋关节不稳定接受了再次手术，但在接受再次手术的患者中，31%在翻修术后仍存在不稳定情况。
