BMC geriatrics · 2026
Determining the minimal clinically important difference for EQ-5D-5L scores in patients undergoing primary total knee arthroplasty.
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Wan Dongping, Wang Rui, Tang Rui, Wu Haodong, Ma Jianbing, Xu Chao
Аннотация
BACKGROUND: Total Knee Arthroplasty (TKA) is a common procedure for knee osteoarthritis, but the Minimal Clinically Important Difference (MCID) for the EQ-5D-5L scale in TKA patients is not established. This study aims to determine the MCID for EQ-5D-5L in TKA patients.
METHODS: A prospective study with 573 TKA patients was conducted. EQ-5D-5L were completed preoperatively and 1-year postoperatively. The MCID was calculated using anchor-based, distribution-based, and ROC curve methods.
RESULTS: The MCID for the EQ-5D-5L index was 0.103 (anchor-based), 0.099 (distribution-based), and 0.09 (ROC). For EQ-VAS, the MCID values were 8.55 (anchor-based), 7.315 (distribution-based), and 6.912 (ROC). Significant improvements in both scores were observed postoperatively (p < 0.001).
CONCLUSION: The MCID values for EQ-5D-5L, determined by calculation method, offer complementary insights into recovery. These findings provide benchmarks to optimize postoperative care and enhance patient outcomes.
METHODS: A prospective study with 573 TKA patients was conducted. EQ-5D-5L were completed preoperatively and 1-year postoperatively. The MCID was calculated using anchor-based, distribution-based, and ROC curve methods.
RESULTS: The MCID for the EQ-5D-5L index was 0.103 (anchor-based), 0.099 (distribution-based), and 0.09 (ROC). For EQ-VAS, the MCID values were 8.55 (anchor-based), 7.315 (distribution-based), and 6.912 (ROC). Significant improvements in both scores were observed postoperatively (p < 0.001).
CONCLUSION: The MCID values for EQ-5D-5L, determined by calculation method, offer complementary insights into recovery. These findings provide benchmarks to optimize postoperative care and enhance patient outcomes.