Altizer T J
Orthop Nurs. 1997 May-Jun;16(3):58-60.
Over the past 26 years there have been marked changes in total knee arthroplasty components. Combinations of metal and polyethylene have been used in a variety of ways in the development of the three major components of the knee prosthesis. The metal-backed patellar implant that was considered state-of-the-art in the early 1980s soon came under criticism due to the high rate of failure and subsequent revision. A closer look at patellar resurfacing may suggest that some patellar compartments do just as well without being resurfaced.
在过去26年里，全膝关节置换组件发生了显著变化。在膝关节假体三大组件的研发过程中，金属与聚乙烯的组合以多种方式被使用。20世纪80年代初被视为先进技术的金属背衬髌骨植入物，由于失败率高以及随后需要翻修，很快受到了批评。仔细研究髌骨表面置换可能会发现，一些髌骨腔不进行表面置换也能有同样好的效果。
