Psychometric properties of the Dutch Short Musculoskeletal Function Assessment (SMFA) questionnaire in patients with a fracture of the upper or lower extremity

Purpose: This prospective study examined the psychometric properties of the adapted Dutch translation of the Short Musculoskeletal Function Assessment (SMFA) questionnaire in patients with isolated unilateral lower fracture (LEF) or upper extremity fracture (UEF). Methods: Patients (N = 458) completed the SMFA, WHOQOL-BREF, and the RAND-36 at time of diagnosis (i.e. pre-injury status), 1, and 2 weeks post-fracture. Principal axis factoring was performed, and Cronbach's alpha coefficients (α) and intra-class correlation coefficients (ICC) were calculated. Furthermore, Pearson's product-moment correlations (r), paired t tests, and standardized response means (SRM) were calculated. Results: A three-factor structure was found: Lower extremity dysfunction, Upper extremity dysfunction, and Daily life consequences. This struct