背景:关于后稳定型全膝关节置换术(TKAs)后的临床结果和患者满意度的长期(至少19年)结果数据在文献中缺失。该研究的目的是评估后稳定TKAs平均21.2年的临床和影像学结果以及患者满意度。
方法:本研究纳入了756名接受TKAs的患者(1,350膝)。有96名男性和660名女性(平均年龄,58年(范围,40to84).平均随访21.2年(范围,19至23)。在每次后续访问中,对患者进行了影像学和临床评估.此外,确定患者满意度。
结果:膝关节协会总计,疼痛,函数,畸形评分分别为42、18、33和5分,分别,在最后的后续行动中。最终随访时,WOMAC平均得分为25分。以修正或无菌性松动为终点,植入物的23年有内膜生存率为96%(95%CI[置信区间],91至100%)。最终随访时患者总体满意度评分为83.3分(范围,81to86).患者对疼痛的满意度评分,家务,娱乐,手术分别为84、81、82和86分,分别。
结论:目前的发现,平均21年的随访临床研究表明,在后稳定型全膝关节植入物的翻修率和生存率方面,结果优异.然而,与文献一致,我们发现,约80%的患者对其主要TKAs表示总体满意.大约8%的患者对手术有些或非常不满意。
BACKGROUND: Long-term (minimum 19-year) outcome data on clinical results and patient satisfaction after posterior-stabilized total knee arthroplasties (TKAs) are missing in the literature. The purpose of the study was to evaluate the clinical and radiographic results as well as patient satisfaction at a mean of 21.2 years after posterior-stabilized TKAs.
METHODS: This study included 756 patients (1,350 knees) who had undergone TKAs. There were 96 men and 660 women (mean age, 58 years; range, 40 to 84). The mean follow-up was 21.2 years (range, 19 to 23). At each follow-up visit, the patients were assessed radiographically and clinically. Furthermore, patient satisfaction was determined.
RESULTS: The Knee Society total, pain, function, and deformity scores were 42, 18, 33, and 5 points, respectively, at the final follow-up. The mean Western Ontario and McMaster Universities Arthritis Index score was 25 points at the final follow-up. With revision or aseptic loosening as the end point, the 23-year intimated survival for the implant was 96% (95% confidence interval, 91 to 100%). The overall patient satisfaction score at the final follow-up was 83.3 points (range, 81 to 86). Patient satisfaction scores with regard to pain, housework, recreation, and surgery were 84, 81, 82, and 86 points, respectively.
CONCLUSIONS: The findings of the present, mean 21-year follow-up clinical study suggest excellent results with regard to the revision rates and survivorship of the posterior-stabilized total knee implants. However, consistent with the literature, we found that about 80% of patients expressed overall satisfaction with their primary TKAs. About 8% of patients were either somewhat or very dissatisfied with the procedure.