Scott Richard D
Department of Orthopaedic Surgery, Brigham and Women's and New England Baptist Hospitals, Boston, Massachusetts, USA.
Instr Course Lect. 2010;59:57-60.
Unicompartmental knee arthroplasty using either a mobile- or fixed-bearing technique is an attractive alternative to osteotomy or total knee arthroplasty in selected patients with osteoarthritis. Both techniques appear to yield equivalent early results. Mobile-bearing articulations have the advantage of allowing a metal-backed component to be used with a composite thickness as thin as 6 mm. They also offer the potential for decreased long-term wear complications because of the high conformity of the articulation. The longevity of fixed-bearing components will likely be improved in the future with better prosthetic designs and improved polyethylene to minimize the incidence of late wear complications.
对于选定的骨关节炎患者，采用活动或固定平台技术的单髁膝关节置换术是截骨术或全膝关节置换术的一种有吸引力的替代方案。两种技术早期效果似乎相当。活动平台关节的优点是允许使用厚度仅6毫米的复合金属背衬部件。由于关节的高度匹配性，它们还具有降低长期磨损并发症的潜力。随着假体设计的改进和聚乙烯材料的改善以尽量减少后期磨损并发症的发生率，固定平台部件的使用寿命在未来可能会得到提高。
