Abstract
Study designClinical measurement. PurposeSeveral questionnaires assess symptoms and functional limitations following shoulder disorders, but few are available in French. The purposes were to translate and culturally adapt the Western Ontario Rotator Cuff (WORC) index into Canadian French and to evaluate its validity, reliability and responsiveness. MethodsIn accordance with standard procedure, the WORC original version was translated and cross-culturally adapted into Canadian French (WORC-CF). Then, 87 patients with rotator cuff (RC) disorders completed the WORC-CF on three occasions: baseline, two days later to evaluate reliability, and four weeks later to evaluate responsiveness. ResultsCross-cultural adaptation was performed without problems with content or language. WORC-CF was found to be reliable (Intraclass Correlation Coefficient = 0.96), valid (high correlation with Disability of the Arm, Shoulder and Hand [DASH]) and responsive (Standardized Response Mean = 1.54). ConclusionWORC-CF can now be used to assess functional impairment in patients with RC disorders. Level of evidenceNot applicable.
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