Objective: To validate a translated version of the revised and expanded Arthritis Impact Measurement Scales (AIMS2) to be used by Italian patients with osteoarthritis (OA) of the knee.
Methods: The AIMS2 was translated into Italian and administered to a cohort of 178 outpatients with symptomatic OA of the knee who attended 12 participating rheumatological institutes in northern, central and southern Italy. A random sample of 71 patients were readministered the AIMS2, 7 days after the first visit, to evaluate the instrument's test-retest reliability.