University Hospital of Wales, Cardiff, United Kingdom.
J Shoulder Elbow Surg. 2010 Apr;19(3):376-83. doi: 10.1016/j.jse.2009.09.016. Epub 2010 Jan 13.
The reported outcome of total elbow replacement is inferior to hip and knee arthroplasty, and there might be an element of institutional bias.
We analyzed the outcome of Souter and Coonrad-Morrey total elbow prosthesis in rheumatoid elbow performed by a single surgeon from a center independent from standpoint of being involved in the designing or manufacturing of the implant.
We had 44 Souter elbows with a mean follow-up of 108 months and 55 Coonrad-Morrey elbows with mean follow-up of 60 months. The Mayo Elbow Performance Score was comparable in both the groups with similar subjective satisfaction. Souter elbow showed a survivorship of 92.9% at 5 years and 76% at 10 years, with aseptic loosening rate of 18% and instability of 9% as main reasons for the failure. The Coonrad-Morrey elbow shows 100% survival at mean follow-up of 5 years in our series.
We find high rate of instability and loosening of Souter prosthesis with an inferior 5-year survival compared to Coonrad-Morrey prosthesis.
全肘关节置换的报道结果不如髋关节和膝关节置换，可能存在机构偏见的因素。
我们分析了由一位独立于植入物设计或制造的立场的外科医生在类风湿性肘部进行的 Souter 和 Coonrad-Morrey 全肘关节假体的结果。
我们有 44 例 Souter 肘部，平均随访 108 个月，55 例 Coonrad-Morrey 肘部，平均随访 60 个月。两组的 Mayo 肘部功能评分相当，主观满意度相似。Souter 肘部的 5 年生存率为 92.9%，10 年生存率为 76%，无菌性松动率为 18%，不稳定率为 9%，是失败的主要原因。在我们的系列中，Coonrad-Morrey 肘部在平均 5 年的随访中显示出 100%的存活率。
我们发现 Souter 假体的不稳定和松动率较高，5 年生存率低于 Coonrad-Morrey 假体。
