Ranawat C S, Insall J, Shine J
Clin Orthop Relat Res. 1976 Oct(120):76-82.
This is a report of 94 knees in 88 patients with the duo-condylar type of knee arthroplasty. The follow-up period of time was between 2 to 4 years with an average of 3 years. The rheumatoid to osteoarthritic patient ratio was 3 to 1. The overall results were excellent in 37.5 per cent, good in 37.5 per cent, fair in 16 per cent, and poor in 9 per cent. The main causes of failure and poor results were: (1) under or over correction of deformity leading to subluxation and/or instability of the knee; (2) loosening of the tibial component, and (3) symptoms arising from the patellofemoral joint. The revision rate is 5.5 per cent. The progressive radiolucency at the cement bone bond is 26 per cent of which 16 per cent is up to 1 mm and 10 per cent is between 1.5 to 3 mm. To further improve the results of arthroplasty, one should take into consideration (1) replacement of the patellofemoral joint, (2) insertion of the prosthesis in the proper anatomical location under correct tension of the ligaments and capsule with the help of proper instrumentation and (3) improvement in fixation of the tibial component.
这是一份关于88例患者94个膝关节的双髁型膝关节置换术报告。随访时间为2至4年，平均3年。类风湿性关节炎患者与骨关节炎患者的比例为3比1。总体结果为：优37.5%，良37.5%，中16%，差9%。失败和效果不佳的主要原因有：（1）畸形矫正不足或过度导致膝关节半脱位和/或不稳定；（2）胫骨部件松动；（3）髌股关节出现症状。翻修率为5.5%。骨水泥与骨结合处的渐进性透亮线为26%，其中16%达1毫米，10%在1.5至3毫米之间。为进一步提高关节置换术的效果，应考虑：（1）髌股关节置换；（2）在适当的器械辅助下，在韧带和关节囊正确张力下将假体植入正确的解剖位置；（3）改进胫骨部件的固定。
