Ring P A
Clin Orthop Relat Res. 1978 Nov-Dec(137):87-95.
One thousand eight hundred eight uncemented total hip replacements have been performed during the last 14 years. The prototype and early models, 11-14 years later have retained a satisfactory result in 56% of cases, and the valgus prostheses, 6-11 years after implantation retain a satisfactory result in 85% of cases. The models in current use, with a standard neck shaft angle, and a range of implants to fit the medullary canal securely, have given a satisfactory result in 94% of patients in a one to 6 year survey. Of the whole series 101 hips (5.5%) have required further surgical treatment, mainly for interface pain but only 9 patients (0.5%) have finally ended with a resection-pseudarthrosis, all for infection. The overall results of the operation appear comparable with those of cemented metal on metal implants, but the frequency of minor discomfort on weightbearing is probably greater than that which follows a cemented on plastic articulation. Against this must be balanced the low risk of infection, and the ease with which revisional surgery can be performed.
在过去14年里共进行了1808例非骨水泥型全髋关节置换术。原型和早期型号在11至14年后，56%的病例仍保持满意效果；外翻假体在植入6至11年后，85%的病例保持满意效果。目前使用的型号具有标准的颈干角，以及一系列能牢固适配髓腔的植入物，在1至6年的调查中，94%的患者取得了满意效果。在整个系列中，101髋（5.5%）需要进一步手术治疗，主要是因为界面疼痛，但最终只有9例患者（0.5%）以切除假关节告终，均为感染所致。该手术的总体结果似乎与骨水泥型金属对金属植入物相当，但负重时轻微不适的发生率可能高于骨水泥型塑料关节置换术后。与之相对的是感染风险低，以及翻修手术操作简便。
