Cross-cultural adaptation, reliability, and validity of the Italian version of the Western Ontario Rotator Cuff (WORC) Index in subjects with rotator cuff diseases.

Purpose: The Western Ontario Rotator Cuff (WORC) Index is a disease-specific, recommended tool to investigate the quality of life in subjects with rotator cuff (RC) disorders and tears. The purpose of this study was to deeply assess the psychometric properties of the WORC Index in patients with RC disorders and repair.

Methods: The WORC Index was translated and cross-culturally adapted into Italian according to international guidelines and administered to 149 subjects with RC disorders or repair.