6533b7d8fe1ef96bd126b50a

RESEARCH PRODUCT

Validation transculturelle des critères d'évaluation rapportés par le patient dans l'arthrose des membres inférieurs

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description

In joint diseases, Patient-Reported Outcomes (PROs) are now critical outcome measures, required by health authorities and regulatory agencies. Cross-cultural adaptation and validation of the psychometric properties of such PROs are needed in order to use them in international therapeutic trials. Thanks to this complex process of cross-cultural validation, the PRO in the target language can take into account the specific socio-cultural features and the linguistic equivalences. The aim of this thesis was to undertake the cross-cultural validation of PROs specifically developed for knee and hip disorders. After explaining the published recommendations for cross-cultural adaptation and then conducting a thorough review of reports dealing with the methodological evaluation of self-administered questionnaires in these joint diseases, we carried out the cross-cultural validation of the KOOS questionnaire (Knee injury and Osteoarthritis Outcome Score), the HOOS questionnaire (Hip disability and Osteoarthritis Outcome Score) and their shortened versions (KOOS-PS and HOOS-PS for Physical function Short form). In the last ten years, these self-administered questionnaires were developed in English to assess the patients’ opinion (symptoms, functional disability in activities of daily life or sports activities, quality of life) about their knee and hip problems, both for traumatic and degenerative joint diseases. Following a translation and cross-cultural adaptation in French in accordance with international recommendations, the French versions of the KOOS, HOOS, KOOS-PS and HOO-PS were validated in a bi-centric prospective study of osteoarthritis patients treated in two rheumatology and orthopedics departments. The results of this work, published as three original articles, demonstrate that the psychometric properties of the French versions of these questionnaires are satisfactory in terms of feasibility, internal consistency, reliability, validity and responsiveness (following total hip or knee replacement or intra-articular injection of hyaluronic acid), whatever the degree of severity of osteoarthritis. By capturing additional relevant concepts such as functional disability in sports activities or quality of life and allowing the longitudinal follow-up of patients (from traumatic lesions to osteoarthritis), with the same measurement tool, theses PROs improve the overall assessment of hip and knee disorders. In the light of the exhaustive validation, including cross-cultural adaptation, the KOOS and HOOS questionnaires can now be considered as references PROs in hip and knee disorders and their use in international therapeutic trials should be encouraged.