采用单膝关节系统设计的超吻合、保留交叉韧带和后稳定胫骨插入物的生存比较：来自澳大利亚骨科协会全国关节置换登记处的结果。
Survivorship Comparisons of Ultracongruent, Cruciate-Retaining and Posterior-Stabilized Tibial Inserts Using a Single Knee System Design: Results From the Australian Orthopedic Association National Joint Replacement Registry.
机构信息
Greenslopes Clinical Unit, Faculty of Medicine, University of Queensland, Greenslopes Private Hospital, Greenslopes, Queensland, Australia.
South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia.
出版信息
J Arthroplasty. 2022 Mar;37(3):468-475. doi: 10.1016/j.arth.2021.11.001. Epub 2021 Nov 6.
BACKGROUND
Ultracongruent (UC) tibial inserts can increase knee replacement stability, but how survivorship compares to cruciate retaining (CR) or posterior stabilized (PS) inserts is unclear.
METHODS
Data from a large joint registry were used to calculate the cumulative percent revision of a single popular knee design used with different inserts. There were 67,523 procedures, of which 12,434 were UC, 21,635 CR, and 33,454 PS. Revision rates and reasons for revision were analyzed.
RESULTS
The cumulative percent revision at 18 years was 8.3% for UC, 9.2% for CR, and 8.9% for PS. There was no difference when UC was compared to CR, but PS had a higher risk of revision. Revision reasons were similar.
CONCLUSION
Compared to the CR, an UC insert did not increase revision rates and was actually lower than a PS insert. An UC insert does not compromise long-term total knee arthroplasty survivorship in the Genesis II prosthesis.
背景
超一致性（UC）胫骨衬垫可以增加膝关节置换的稳定性，但与保留交叉韧带（CR）或后稳定（PS）衬垫相比，其存活率如何尚不清楚。
方法
使用大型关节登记处的数据来计算不同衬垫下使用同种流行膝关节设计的累计返修百分比。共有 67523 例手术，其中 UC 为 12434 例，CR 为 21635 例，PS 为 33454 例。分析了返修率和返修原因。
结果
UC 的 18 年累计返修率为 8.3%，CR 为 9.2%，PS 为 8.9%。UC 与 CR 之间没有差异，但 PS 的返修风险更高。返修原因相似。
结论
与 CR 相比，UC 植入物不会增加返修率，实际上低于 PS 植入物。在 Genesis II 假体中，UC 植入物不会影响长期全膝关节置换的存活率。
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