The minimal clinically important difference in the Oxford knee score and Short Form 12 score after total knee arthroplasty
The minimal clinically important difference in the Oxford knee score and Short Form 12 score after total knee arthroplasty
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DOI：
10.1007/s00167-013-2776-5
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发表时间：
2014-08-01
影响因子：
3.8
通讯作者：
Simpson, A. H. R. W.
中科院分区：
文献类型：
--
作者：
Clement, N. D.;MacDonald, D.;Simpson, A. H. R. W.
本研究的目的是确定全膝关节置换术（TKA）后牛津膝关节评分（OKS）和简明量表（SF-）12评分的最小临床重要差异（MCID）。收集了505例因骨关节炎接受初次TKA的患者在一年期间的前瞻性术前和术后1年的OKS和SF-12评分。患者对（1）患者缓解和（2）功能结局的满意度被用作锚问题。他们对每个问题的回答都使用5分制的李克特量表记录：优秀、非常好、好、一般和差。根据患者对疼痛缓解和功能的满意程度，采用简单线性回归计算SF-12评分中OKS和身体部分改善的MCID，OKS改善15.5（95%CI 14.7-16.4）分，研究队列的SF-12身体成分评分改善了10.1（95%CI 9.1-11.2）分。患者对疼痛缓解和功能的满意度水平分别与OKS（r = 0.56; p < 0.001和r = 0.56; p < 0.001）和SF-12评分的身体部分（r = 0.51; p < 0.001和r = 0.60; p < 0.001）的改善相关。OKS的MCID为5.0（95% CI 4.4-5.5）和4.3（95% CI 3.8-4.8）分，SF-12的身体部分为4.5（95% CI 3.9-5.2）和4.8（95% CI 4.2-5.4）疼痛缓解和功能评分，对于TKA后的OKS和SF-12身体成分评分识别的MCID是最佳可用估计，并且可以用于增强研究并确保患者也认识到统计学差异。三级。
The aim of this study was to identify the minimal clinically important difference (MCID) in the Oxford knee score (OKS) and Short Form (SF-) 12 score after total knee arthroplasty (TKA).Prospective pre-operative and 1 year post-operative OKS and SF-12 scores for 505 patients undergoing a primary TKA for osteoarthritis were collected during a one-year period. Patient satisfaction with their (1) patient relief and (2) functional outcome was used as the anchor questions. Their response to each question was recorded using a 5-point Likert scale: excellent, very well, well, fair, and poor. Simple linear regression was used to calculate the MCID for improvement in the OKS and physical component of the SF-12 score according to the level of patient satisfaction with their pain relief and function.The OKS improved by 15.5 (95 % CI 14.7-16.4) points and the SF-12 physical component score improved by 10.1 (95 % CI 9.1-11.2) points for the study cohort. The level of patient satisfaction with their pain relief and function correlated with the improvement in the OKS (r = 0.56; p < 0.001, and r = 0.56; p < 0.001) and the physical component of the SF-12 score (r = 0.51; p < 0.001, and r = 0.60; p < 0.001), respectively. The MCID for the OKS was 5.0 (95 % CI 4.4-5.5) and 4.3 (95 % CI 3.8-4.8) points and for the physical component of the SF-12, it was 4.5 (95 % CI 3.9-5.2) and 4.8 (95 % CI 4.2-5.4) points for pain relief and function, respectively.The MCID identified for the OKS and SF-12 physical component score after TKA is the best available estimate and can be used to power studies and ensure that a statistical difference is also recognised by a patient.Retrospective diagnostic study, Level III.