超越患者主观感知：膝关节软骨修复术后PROMs与客观功能测试的相关性
简介
该研究纳入52例膝关节软骨修复术后患者（平均随访66.8个月），分析患者报告结局（IKDC、KOOS）与客观功能测试（等长肌力、单腿跳、计时起立行走等）的相关性。结果显示，动态单腿跳测试与PROMs相关性最强（IKDC与单腿跳对称性ρ=0.540），而低负荷测试（如计时起立行走）无显著关联。提示PROMs能反映功能缺陷，但无法替代客观测试，临床评估应两者结合…
英文摘要
BACKGROUND: Patient-reported outcome measures (PROMs) are widely used to evaluate subjective knee function after cartilage repair surgery, but their association with objective functional performance is unclear. This study explored correlations between PROMs and functional performance tests in patients after knee cartilage repair. METHODS: In this monocentric observational study, 52 patients from the German Cartilage Registry underwent standardized functional testing at a mean follow-up of 66.8 months. PROMs included the subjective IKDC score and KOOS subscales. Functional performance comprised isometric strength testing, single-leg hop tests (SLHD), Timed Up and Go (TUG), Timed 6-Meter Hop (T6H), 30-second Sit-to-Stand, and Single Leg Stance. Spearman correlations were calculated between PROMs and limb symmetry indices or performance categories. RESULTS: Dynamic unilateral hop tests showed the strongest associations with PROMs, with SLHD symmetry correlating strongly with IKDC (ρ = 0.540) and moderately with all KOOS subscales. T6H performance also correlated strongly with IKDC and KOOS Sport. Knee extension strength showed moderate correlations with IKDC and KOOS Sport, whereas flexion strength and low-demand tests (TUG, Single Leg Stance) showed no significant associations. CONCLUSION: PROMs demonstrate moderate, test-dependent correlations with objective functional performance after knee cartilage repair, particularly for dynamic unilateral tasks. PROMs reflect functional impairment but cannot replace objective testing. Therefore, a combined assessment approach is recommended.