French Translation and Validation of the Victorian Institute of Sports Assessment for Gluteal Tendinopathy Questionnaire.

Background: Developed in 2015, the Victorian Institute for Sport Assessment for Gluteal Tendinopathy (VISA-G) is the first patient-reported outcome measure 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: 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 Liège, Belgium and in France.

Patients: Participants with greater trochanteric pain syndrome and control asymptomatic participants.

Interventions: Not applicable.

Main Outcome Measures: French translation of the VISA-G and psychometric performances of the questionnaire tested using internal consistency, construct validity and test-retest reliability with a 7-day interval.

Results: The eight items of the VISA-G questionnaire were translated without any difficulties. The psychometric validation study included 106 participants (median age 53 [58-64] years old, 65 women [61.3%]). 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.