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Updated: Jan 21, 2026
Reverse Total Shoulder Arthroplasty
Published on: July 5, 2011
Translation and validation of a Hebrew version of the Western Ontario Shoulder Instability index
Uri Gottlieb1,2, Shmuel Springer3
1Israel Defense Forces, Medical Corps, Ramat-Gan, Israel. urigott@gmail.com.
Background:
The Western Ontario Shoulder Instability index (WOSI) is a questionnaire designed to measure health-related quality of life in patients with shoulder instability. The aim of the current study was to translate the WOSI into Hebrew and assess its psychometric properties.
Methods:
The WOSI was translated into Hebrew according to World Health Organization guidelines. Twenty-five patients completed the WOSI and the Disabilities of Arm, Shoulder, and Hand (DASH) questionnaire 2 weeks and 2 months after surgical shoulder stabilization. Internal consistency (Cronbach's α), criterion validity (Pearson's correlation coefficient with DASH), responsiveness, and floor and ceiling effects were assessed.
Results:
Cronbach's α was 0.88-0.95 for total WOSI (range 0.68-0.95 for different sections). Strong correlation with DASH score (r = 0.76-0.84) indicated good criterion validity. Changes between baseline and follow-up for WOSI and DASH scores were moderately correlated (r = 0.68), suggesting moderate responsiveness. Some items demonstrated floor and ceiling effects, especially at baseline, but no floor or ceiling effects were observed for total WOSI or for the WOSI sections.
Conclusions:
The results of the current study demonstrate that the Hebrew version of the WOSI is a valid instrument that can be used to assess disability in patients with shoulder instability. Additional studies are warranted to assess its psychometric properties among various subpopulations.
Trial Registration:
The study was pre-registered at the ClinicalTrials.gov website, registration number NCT02978365 .
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