Department of Trauma and Orthopaedic Surgery, Chelsea and Westminster Hospital, London, UK.
J Arthroplasty. 2013 Oct;28(9):1571-4. doi: 10.1016/j.arth.2013.02.003. Epub 2013 Mar 26.
Using the National Joint Registry (UK) database, we compared the thickness of polyethylene (PE) and the level of constraint used during primary total knee arthroplasty (TKA) versus the revision of unicondylar knee arthroplasty (UKA) to TKA. A total of 251,803 TKA procedures and 374 revision UKA-TKA procedures between 2003 and 2009 were reviewed. The commonest PE size used in TKA was 10mm, compared to 12.79 mm in the revision group. The use of constrained knee implant was required in 2.15% of primary TKA and 4.19% of UKA to TKA revisions. The revision of UKA to TKA is a more complex procedure compared to primary TKA, with a higher incidence of using constrained implants and thicker PE inserts. These findings may be useful for surgeons in their decision making.
利用英国国家联合注册处（National Joint Registry，简称 NJR）数据库，我们比较了初次全膝关节置换术（total knee arthroplasty，简称 TKA）和单髁膝关节置换术（unicondylar knee arthroplasty，简称 UKA）翻修时使用的聚乙烯（polyethylene，简称 PE）厚度和约束程度。对 2003 年至 2009 年间的 251803 例初次 TKA 手术和 374 例 UKA-TKA 翻修手术进行了回顾性研究。初次 TKA 中最常使用的 PE 厚度为 10mm，而 UKA 翻修组中最常使用的厚度为 12.79mm。初次 TKA 中需要使用约束型膝关节植入物的比例为 2.15%，而 UKA 翻修 TKA 中则为 4.19%。与初次 TKA 相比，UKA 翻修 TKA 是一种更为复杂的手术，约束型植入物和更厚的 PE 衬垫的使用更为常见。这些发现可能有助于外科医生做出决策。
