Magalie Angers1, Amy Svotelis1, Frederic Balg1, Jean-Pascal Allard1. 1. From the Department of Surgery, Orthopaedic division, Centre intégré universitaire de santé et de services sociaux de l'Estrie - Centre hospitalier universitaire de Sherbrooke (CIUSSS de l'Estrie CHUS), Sherbrooke, QC (Angers, Svotelis, Balg); and the Department of Surgery, Orthopaedic and traumatology division, Centre de Santé et des Services Sociaux de Chicoutimi, Chicoutimi, QC (Allard).
Abstract
BACKGROUND: The Ankle Osteoarthritis Scale (AOS) is a self-administered score specific for ankle osteoarthritis (OA) with excellent reliability and strong construct and criterion validity. Many recent randomized multicentre trials have used the AOS, and the involvement of the French-speaking population is limited by the absence of a French version. Our goal was to develop a French version and validate the psychometric properties to assure equivalence to the original English version. METHODS: Translation was performed according to American Association of Orthopaedic Surgeons (AAOS) 2000 guidelines for cross-cultural adaptation. Similar to the validation process of the English AOS, we evaluated the psychometric properties of the French version (AOS-Fr): criterion validity (AOS-Fr v. Western Ontario and McMaster Universities Arthritis Index [WOMAC] and SF-36 scores), construct validity (AOS-Fr correlation to single heel-lift test), and reliability (AOS-Fr test-retest). Sixty healthy individuals tested a prefinal version of the AOS-Fr for comprehension, leading to modifications and a final version that was approved by C. Saltzman, author of the AOS. We then recruited patients with ankle OA for evaluation of the AOS-Fr psychometric properties. RESULTS: Twenty-eight patients with ankle OA participated in the evaluation. The AOS-Fr showed strong criterion validity (AOS:WOMAC r = 0.709 and AOS:SF-36 r = -0.654) and construct validity (r = 0.664) and proved to be reliable (test-retest intraclass correlation coefficient = 0.922). CONCLUSION: The AOS-Fr is a reliable and valid score equivalent to the English version in terms of psychometric properties, thus is available for use in multicentre trials.
BACKGROUND: The Ankle Osteoarthritis Scale (AOS) is a self-administered score specific for ankle osteoarthritis (OA) with excellent reliability and strong construct and criterion validity. Many recent randomized multicentre trials have used the AOS, and the involvement of the French-speaking population is limited by the absence of a French version. Our goal was to develop a French version and validate the psychometric properties to assure equivalence to the original English version. METHODS: Translation was performed according to American Association of Orthopaedic Surgeons (AAOS) 2000 guidelines for cross-cultural adaptation. Similar to the validation process of the English AOS, we evaluated the psychometric properties of the French version (AOS-Fr): criterion validity (AOS-Fr v. Western Ontario and McMaster Universities Arthritis Index [WOMAC] and SF-36 scores), construct validity (AOS-Fr correlation to single heel-lift test), and reliability (AOS-Fr test-retest). Sixty healthy individuals tested a prefinal version of the AOS-Fr for comprehension, leading to modifications and a final version that was approved by C. Saltzman, author of the AOS. We then recruited patients with ankle OA for evaluation of the AOS-Fr psychometric properties. RESULTS: Twenty-eight patients with ankle OA participated in the evaluation. The AOS-Fr showed strong criterion validity (AOS:WOMAC r = 0.709 and AOS:SF-36 r = -0.654) and construct validity (r = 0.664) and proved to be reliable (test-retest intraclass correlation coefficient = 0.922). CONCLUSION: The AOS-Fr is a reliable and valid score equivalent to the English version in terms of psychometric properties, thus is available for use in multicentre trials.
Authors: N Jane Madeley; Kevin J Wing; Claire Topliss; Murray J Penner; Mark A Glazebrook; Alastair Se Younger Journal: Foot Ankle Int Date: 2012-01 Impact factor: 2.827
Authors: M Bullinger; J Alonso; G Apolone; A Leplège; M Sullivan; S Wood-Dauphinee; B Gandek; A Wagner; N Aaronson; P Bech; S Fukuhara; S Kaasa; J E Ware Journal: J Clin Epidemiol Date: 1998-11 Impact factor: 6.437
Authors: Mark Glazebrook; Tim Daniels; Alastair Younger; C J Foote; Murray Penner; Kevin Wing; Johnny Lau; Ross Leighton; Michael Dunbar Journal: J Bone Joint Surg Am Date: 2008-03 Impact factor: 5.284