French translation and validation of the "Victorian Institute of Sports Assessment for Gluteal Tendinopathy" questionnaire.

INTRODUCTION: Developed in 2015, the VISA-G is the first Patient Reported Outcome Measure (PROM) tool specifically designed to measure the severity of disability associated with greater trochanteric pain syndrome. There is currently no French version of the VISA-G questionnaire. OBJECTIVE: The purpose of this work was to translate the VISA-G questionnaire into French (VISA-GF) and to test its psychometric performances. DESIGN: Cross-sectional study, validation study. SETTING: Clinics in Liege, Belgium and in France. PATIENTS: Participants suffering from greater trochanteric pain syndrome and control asymptomatic participants. INTERVENTION: Not applicable MAIN OUTCOME: French translation of the VISA-G and psychometric performances of the questionnaire tested using internal consistency, construct validity and test-retest reliability with a seven-day interval. RESULTS: The eight items of the VISA-G questionnaire were translated without any difficulties. 106 participants (median age 53 (58-64) years old, 65 women (61.3%)) were included in the psychometric validation study. The questionnaire discriminates well between pathologic (n=52) and asymptomatic participants (n=54). Moreover, we found a good internal consistency and excellent test-retest reliability for the VISA-GF questionnaire. We also confirmed the construct validity and did not find any floor or ceiling effects. CONCLUSIONS: The VISA-GF has been shown to be a valid and reliable way to measure the severity of disability associated with greater trochanteric pain syndrome in French speaking participants. This article is protected by copyright. All rights reserved.