The Spanish Version of the Western Ontario Meniscal Evaluation Tool Is a Reliable, Valid, Precise, and Highly Responsive Instrument for Patients With Meniscal Pathology at a Minimum 6‐Month Follow‐Up

Purpose To translate, culturally adapt, and validate the Western Ontario Meniscal Evaluation Tool (WOMET) into Peninsular Spanish and to evaluate its psychometric properties (reliability, validity, precision, and responsiveness) in patients undergoing knee arthroscopy for meniscal pathology. Methods This retrospective study with prospectively collected data (from July to December 2025) followed international guidelines for cross‐cultural adaptation (forward‐backward translation, expert committee review, and pilot testing in 30 patients). The Spanish WOMET and Knee Injury and Osteoarthritis Outcome Score‐4 were assessed electronically at baseline (T0), retest (T1, 2 weeks later), and 3 (T2) and 6 (T3) months postoperatively (a minimum 6‐month follow‐up). Reliability was assessed with intraclass correlation coefficient; internal consistency with Cronbach's α and McDonald's ω ; convergent validity with Spearman ρ against Knee Injury and Osteoarthritis Outcome Score‐4; precision with standard error of measurement and minimal detectable change at 95% confidence level; and responsiveness with standardized response mean. Results Seventy‐one patients (67.7% men; median age 47 years, interquartile range 18‐60) with a mean follow‐up of 6.1 months (range: 5.7‐6.8) were evaluated. Test‐retest reliability was excellent (total WOMET intraclass correlation coefficient = 0.96, 95% confidence interval 0.94‐0.97). Internal consistency was high ( α = 0.90, ω = 0.92). Convergent validity with Knee Injury and Osteoarthritis Outcome Score‐4 was strong ( ρ = 0.90, P < .001). Precision was good (standard error of measurement = 2.78, minimal detectable change at 95% confidence level = 7.68). Responsiveness was substantial (standardized response mean = 2.71 at 3 months and 2.56 at 6 months; P < .001), exceeding values reported for most other language versions. Conclusions The Spanish version of the WOMET questionnaire is a reliable, valid, precise, and highly responsive instrument for assessing clinical outcomes in patients with meniscal pathology treated surgically in Spanish‐speaking patients. Its brevity (16 items), specificity, and excellent patient acceptability make it an ideal tool for routine clinical practice and research. Level of Evidence Level IV, retrospective case series.