Division of Orthopaedic Surgery, Department of Surgery, University Health Network, University of Toronto, Toronto, Ontario, Canada.
J Arthroplasty. 2011 Dec;26(8):1205-13. doi: 10.1016/j.arth.2010.12.017. Epub 2011 Feb 4.
Mobile bearing (MB) knee replacements were designed with the goal of increased conformity and decreased bearing wear. We conducted a meta-analysis and systematic review of randomized controlled trials comparing outcomes of MB and fixed bearing (FB) total knee arthroplasty (TKA). We identified 14 studies reporting our primary outcome of Knee Society Scores (KSS). We also pooled data for post-operative range of motion (ROM) and Hospital for Special Surgery scores (HSS). The standard difference in mean outcome scores for KSS and HSS demonstrated no difference between groups (P = .902, and P = .426 respectively). Similarly, the pooled data for ROM showed no difference between groups (P = .265). The results of this study found no significant differences between clinical outcomes of MB and FB TKA.
移动平台（MB）膝关节置换的设计目标是提高一致性和降低轴承磨损。我们对 MB 和固定平台（FB）全膝关节置换术（TKA）的随机对照试验进行了荟萃分析和系统评价。我们确定了 14 项报告我们主要结果的膝关节协会评分（KSS）的研究。我们还对术后活动范围（ROM）和特殊外科医院评分（HSS）的数据进行了汇总。KSS 和 HSS 的平均结果评分的标准差异在组间没有差异（P =.902，和 P =.426）。同样，ROM 的汇总数据也显示组间没有差异（P =.265）。这项研究的结果发现 MB 和 FB TKA 的临床结果没有显著差异。
