Lodge Christopher J, Matar Hosam E, Berber Reshid, Radford Philip J, Bloch Benjamin V
Nottingham University Hospitals NHS Trust, Nottingham Elective Orthopaedic Services, Nottingham, UK.
Arthroplast Today. 2023 Jan 16;19:101086. doi: 10.1016/j.artd.2022.101086. eCollection 2023 Feb.
Ceramic coatings in total knee arthroplasty have been introduced with the aim of reducing wear and consequently improving implant survivorship. We studied both cobalt-chrome-molybdenum (CoCrMo) and ceramic-coated components of the same implant design from a single center to identify if the ceramic coating conferred any benefit.
We identified 1641 Columbus total knee arthroplasties (Aesculap AG, Tüttlingen, Germany) from a prospectively collected arthroplasty database. Of the 1641, 983 were traditional CoCrMo, and 659 had the Columbus AS ceramic coating. Patients were followed up until death or revision of any component of the implant.
There was no significant difference in implant survivorship using any component revision as the endpoint between the CoCrMo femur and the ceramic-coated femur at a mean of 9.2 years in follow-up for the CoCrMo group and 5 years for the ceramic-coated group (37 vs 14; = .76). There was no reduction in the proportion of components revised for aseptic loosening or infection in the ceramic-coated cohort.
At midterm follow-up, there was no benefit in terms of implant survivorship in using a ceramic coating.
全膝关节置换术中引入陶瓷涂层的目的是减少磨损，从而提高植入物的生存率。我们研究了来自单一中心的相同植入物设计的钴铬钼（CoCrMo）和陶瓷涂层组件，以确定陶瓷涂层是否有任何益处。
我们从一个前瞻性收集的关节置换数据库中识别出1641例哥伦布全膝关节置换术（德国图特林根市埃斯库拉普股份公司）。在这1641例中，983例是传统的CoCrMo，659例有哥伦布AS陶瓷涂层。对患者进行随访，直至死亡或植入物的任何组件进行翻修。
以任何组件翻修为终点，CoCrMo组平均随访9.2年，陶瓷涂层组平均随访5年，CoCrMo股骨和陶瓷涂层股骨之间的植入物生存率无显著差异（37对14；P = 0.76）。在陶瓷涂层队列中，因无菌性松动或感染而翻修的组件比例没有降低。
在中期随访中，使用陶瓷涂层在植入物生存率方面没有益处。
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