The Functional Rating Index (FRI) is a relatively new instrument that dramatically reduces the administrative burden. FRI combines the content of the Oswestry Low-Back Disability Questionnaire and the Neck Disability Index in a streamlined format. The instrument?s 10 items measure both pain and function of the spinal musculoskeletal system: 8 items pertain to daily activities that might be affected by a spinal condition, and 2 pertain to pain. Because the instrument measures both pain and function, it provides a broad view of a patient?s disability.
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