Linde F, Jensen J
Orthopedic Hospital, University of Arhus, Denmark.
Acta Orthop Scand. 1988 Jun;59(3):254-7. doi: 10.3109/17453678809149356.
Mechanical risk factors in loosening of the socket were radiographically analyzed in 123 Charnley arthroplasties performed during the period 1969-1982 for coxarthrosis secondary to congenital dislocation. The socket was placed as near the true acetabulum as possible without extensive soft-tissue release and without reinforcement of the acetabular roof by bone grafting. The rate of socket loosening was 19 percent using progression of a radiolucent line at the bone-cement interface to a width of greater than 1 mm as the criterion for loosening. Different predictors of loosening were analyzed by stepwise logistic regression analysis. Lack of lateral bony support for the socket was the prime predictor. The next most important predictors were the preoperative degree of hip dislocation and the position of the socket in relation to the true acetabulum.
对1969年至1982年期间因先天性脱位继发髋关节病而施行的123例Charnley关节成形术中髋臼假体松动的机械危险因素进行了影像学分析。髋臼假体尽可能靠近真髋臼放置，未进行广泛的软组织松解，也未通过植骨加强髋臼顶。以骨水泥界面处透亮线进展至宽度大于1mm作为假体松动的标准，髋臼假体松动率为19%。通过逐步逻辑回归分析对不同的松动预测因素进行了分析。髋臼缺乏外侧骨支撑是主要的预测因素。其次最重要的预测因素是术前髋关节脱位程度以及髋臼假体相对于真髋臼的位置。
