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Higher treatment effect after total knee arthroplasty is associated with higher patient satisfaction.
Knee Surgery, Sports Traumatology, Arthroscopy ( IF 3.8 ) Pub Date : 2020-09-12 , DOI: 10.1007/s00167-020-06272-2
Jörg Lützner 1 , Franziska Beyer 1 , Klaus-Peter Günther 1 , Jörg Huber 2
Affiliation  

Purpose

The aim of this study was to investigate what influence the treatment effect after total knee arthroplasty (TKA) had on patient satisfaction.

Methods

Prospective registry data of a University-based arthroplasty centre were used. 582 patients with unilateral bicondylar TKA were analyzed. Treatment effect (TE) was deduced from Oxford Knee Score (OKS) before and one year after surgery. Positive values correspond to improved symptoms (maximum 1.0 reflect no symptoms at all) and negative values correspond to deterioration of symptoms. Satisfaction on a visual-analogue scale from 0 to 10 and the willingness to undergo TKA surgery again was assessed one year after surgery.

Results

The mean OKS improved from 22.1 before to 36.7 one year after TKA. Treatment effects ranged from 1.0 to –0.62 with a mean TE of 0.56. Taking an individual treatment effect of 0.2 as a cut-off between responder and non-responder, a total of 85.8% would be classified as responder after TKA. The mean satisfaction score with the TKA was 8.1. There was a significant correlation between the individual treatment effect and satisfaction after TKA (p < 0.001). The majority of patients (84.5%) would undergo surgery again. Patients not willing to undergo surgery again or those uncertain about this had lower satisfaction scores, a lower treatment effect and were more often female compared to patients who would undergo surgery again.

Conclusion

Higher individual treatment effects resulted in higher patient satisfaction and willingness to undergo surgery again. However, some patients with a relatively low treatment effect were highly satisfied, which indicates the need for both information.

Level of evidence

II.



中文翻译:

全膝关节置换术后较高的治疗效果与较高的患者满意度相关。

目的

本研究的目的是调查全膝关节置换术 (TKA) 后治疗效果对患者满意度的影响。

方法

使用了大学关节置换中心的前瞻性注册数据。分析了 582 例单侧双髁 TKA 患者。治疗效果(TE)由手术前和手术后一年的牛津膝关节评分(OKS)推导出来。正值对应于症状改善(最大值 1.0 表示完全没有症状),负值对应于症状恶化。术后一年评估视觉模拟量表从 0 到 10 的满意度以及再次接受 TKA 手术的意愿。

结果

平均 OKS 从之前的 22.1 提高到 TKA 一年后的 36.7。治疗效果范围从 1.0 到 –0.62,平均 TE 为 0.56。以个体治疗效果 0.2 作为响应者和非响应者之间的分界点,TKA 后总共有 85.8% 被归类为响应者。TKA 的平均满意度得分为 8.1。TKA后个体治疗效果与满意度呈显着相关(p  <0.001)。大多数患者(84.5%)会再次接受手术。与再次接受手术的患者相比,不愿意再次接受手术或不确定的患者满意度得分较低,治疗效果较低,并且女性更多。

结论

更高的个体治疗效果导致更高的患者满意度和再次接受手术的意愿。然而,一些治疗效果相对较低的患者满意度很高,这表明需要这两种信息。

证据级别

二、

更新日期:2020-09-12
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