Riley L H
Clin Orthop Relat Res. 1976 Oct(120):7-10.
The current status of knee replacement surgery suggests that high density polyethylene and chrome cobalt alloy or stainless steel are acceptable materials for use in the intra-articular environment of the knee; that prosthetic components of knee units can be firmly fixed in bone with methylmethacrylate; and that a wide range of prosthetic units are available which will provide acceptable clinical results if used within the limits for which they have been designed. The indications for total knee arthroplasty have been designed. The indications for total knee arthroplasty have become reasonably simple and straightforward. Contraindications for the use of the various units available are relatively obscure and very seldom stressed. Each unit available will fail, however, if used under conditions of bone loss, deformity, and ligamentous instability for which it was not designed. The importance of the surgeon understanding and respecting the limitations of the total knee unit he chooses, and skillfully adapting it to the pathologic anatomy and pathophysiology of the patient's knee cannot be overemphasized.
膝关节置换手术的现状表明，高密度聚乙烯与铬钴合金或不锈钢是适用于膝关节关节内环境的材料；膝关节假体组件可用甲基丙烯酸甲酯牢固地固定在骨中；并且有多种假体可供使用，若在其设计的适用范围内使用，将能提供可接受的临床效果。全膝关节置换术的适应症已经明确。全膝关节置换术的适应症已变得相当简单明了。使用现有各种假体的禁忌症相对模糊，很少被强调。然而，如果在假体未设计适用的骨丢失、畸形和韧带不稳定的情况下使用，每种现有假体都会失效。外科医生理解并尊重他所选择的全膝关节假体的局限性，并巧妙地使其适应患者膝关节的病理解剖和病理生理状况，这一点再怎么强调也不为过。
