Translation, Cross-Cultural Adaptation, and Psychometric Analysis of the Indonesian Version of the Mayo Elbow Performance Score (MEPS-INA)

Objective This study aimed to translate and adapt the Mayo Elbow Performance Score (MEPS) into Indonesian (MEPS-INA) to evaluate its reliability and validity for Indonesian-speaking patients with elbow problems. Methods The translation process followed the forward and backward translation method as recommended by a previous study. The correlation between MEPS-INA and other measures (Medical Outcomes Study Short-Form of 12 items Health Survey (SF-12), Disabilities of the Arm, Shoulder and Hand (DASH), and Oxford Elbow Score (OES)) was analyzed to construct validity. Reliability testing value was using internal consistency coefficient, test-retest reliability, standard error of measurement (SEM), and minimal detectable change (MDC) values. Results The results confirmed significant correlations between the MEPS-INA with OES (0.74), DASH score (-0.61), SF-12 physical component score (PCS) (0.44), and SF-12 mental component summary (MCS) (0.23). Reliability testing showed good internal consistency (Cronbach's α of 0.93) with an intraclass correlation (ICC) of 0.93. MEPS-INA had low SEM, MDCindividual, and MDCgroup (1.74, 4.82, and 0.55, respectively). Conclusion MEPS-INA is a valid and reliable tool for assessing elbow function in Indonesian-speaking patients.