Department of Orthopedic Surgery, Faculty of Medicine, Tottori University, Tottori, Japan.
School of Health Science, Faculty of Medicine, Tottori University, Tottori, Japan.
Mod Rheumatol. 2022 Feb 28;32(2):432-437. doi: 10.1080/14397595.2021.1913823.
To explore the trends in patient characteristics and implant survivorship (IS) for primary total knee arthroplasty (TKA) over the past three decades.
This retrospective study enrolled a total of 635 knees who underwent TKA from 1985 to 2014. They were divided into three groups: group A, 125 knees in 1985-1994; group B, 203 knees in 1995-2004; and group C, 307 knees A in 2005-2014. The patient characteristics and IS were compared.
The mean age of patients undergoing TKA was getting older: 65.3 ± 9.7, 69.1 ± 10.0, and 74.6 ± 8.4 years, in groups A, B, and C, respectively (p = .001). The proportion of patients <60 years old with RA decreased (p < .001), whereas that of patients ≥ 80 years old with OA increased dramatically, it was 7.0%, 14.5%, and 32.0% in groups A, B, and C, respectively (p < .001). The IS free from infection was over 98% in all groups. Alternatively, the IS free from aseptic loosening become better, it was 83.7%, 95.2%, and 98.2% in groups A, B, and C, respectively (p = .014).
From these trends, we can estimate that the number of patients undergoing TKA will further increase in the future in an aging society.
探讨过去三十年中初次全膝关节置换术(TKA)患者特征和植入物存活率(IS)的趋势。
本回顾性研究共纳入 1985 年至 2014 年期间接受 TKA 的 635 例膝关节。他们被分为三组:A 组,125 例膝关节,1985-1994 年;B 组,203 例膝关节,1995-2004 年;C 组,307 例膝关节,2005-2014 年。比较了患者特征和 IS。
接受 TKA 的患者平均年龄越来越大:A、B 和 C 组分别为 65.3±9.7、69.1±10.0 和 74.6±8.4 岁(p=0.001)。患有类风湿关节炎且年龄小于 60 岁的患者比例下降(p<0.001),而患有骨关节炎且年龄大于 80 岁的患者比例显著增加,分别为 7.0%、14.5%和 32.0%(p<0.001)。所有组中,无感染的 IS 均超过 98%。相反,无无菌性松动的 IS 变得更好,A、B 和 C 组分别为 83.7%、95.2%和 98.2%(p=0.014)。
从这些趋势来看,我们可以估计在老龄化社会中,未来接受 TKA 的患者数量将进一步增加。