目的：计算全髋关节（THR）或全膝关节置换（TKR）后患者WOMAC总分的非分层和患者特异性有意义的改善（MI）和患者可接受的症状状态（PASS）。
方法：一项回顾性观察性队列研究。基于锚的接收器操作员特征曲线用于估计MI和PASS阈值。
结果：恢复路径特定于患者的个体特征。THR和TKR后患者的未分层12个月MI阈值为28.1（PASS：13.3）和17.8（PASS：15.8），分别,会不公平地检测关键恢复路径。
结论：治疗成功的阈值需要尽可能针对患者。
OBJECTIVE: To calculate unstratified and patient-specific meaningful improvement (MI) and patient acceptable symptom states (PASS) for the WOMAC total score in patients after total hip (THR) or total knee replacement (TKR).
METHODS: A retrospective observational cohort study. Anchor-based receiver operator characteristics curves were used to estimate MI and PASS thresholds.
RESULTS: Recovery paths were specific to individual characteristics of patients. An unstratified 12-months MI threshold of 28.1 (PASS: 13.3) and 17.8 (PASS: 15.8) for patients after THR and TKR, respectively, would unfairly detect critical recovery paths.
CONCLUSIONS: Thresholds for treatment success need to be as patient-specific as possible.
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