Markel D C, Huo M H, Katkin P D, Salvati E A
Hospital for Special Surgery Hip Service, New York, New York, USA.
J Arthroplasty. 1995 Nov;10 Suppl:S1-7. doi: 10.1016/s0883-5403(05)80224-4.
The results of 115 primary total hip arthroplasties (97 patients) performed using the Charnley system and contemporary cementing techniques were reviewed. Fifty-five all-polyethylene cups and 60 metal-backed cups were used. The mean follow-up period was 84 months. No statistically significant difference was noted between groups for radiographic loosening and no cup has been revised to date. Survival analysis did not reveal a statistically significant difference between groups. Although all-polyethylene cups had significantly greater polyethylene thickness, no difference was noted for rate of wear. Increased loosening of the metal-backed cups was not observed. Polyethylene thickness is increased by the use of 22-mm heads and this may have accounted for the lack of difference in loosening rates of the all-polyethylene and metal-backed cups.
回顾了采用Charnley系统及当代骨水泥技术进行的115例初次全髋关节置换术（97例患者）的结果。使用了55个全聚乙烯髋臼杯和60个金属背衬髋臼杯。平均随访期为84个月。两组在影像学松动方面未发现统计学上的显著差异，且迄今为止尚无髋臼杯翻修的情况。生存分析未显示两组之间存在统计学上的显著差异。尽管全聚乙烯髋臼杯的聚乙烯厚度明显更大，但磨损率并无差异。未观察到金属背衬髋臼杯松动增加的情况。使用22毫米股骨头可增加聚乙烯厚度，这可能是全聚乙烯髋臼杯和金属背衬髋臼杯松动率无差异的原因。
