A systematic review of self-administered questionnaires for the functional assessment of patients with knee disabilities adapted into Spanish.
OBJECTIVE
The aim of this study was to conduct a systematic review of self-administered knee-disability functional assessment questionnaires adapted to Spanish, analysing the quality of the transcultural adaptation procedure and the psychometric properties of the new version.


METHODS
A search was conducted in the main biomedical databases to find knee-function assessment scales adapted into Spanish, in order to assess their questionnaire adaptation process as well as their psychometric properties.


RESULTS
Ten scales were identified; 3 for lower limb: 2 for any type of pathologies (Lower Limb Functional Index [LLFI]; Lower Extremity Functional Scale [LEFS]) and 1 specific for arthrosis (Arthrosis des Membres Inférieurs et Qualité de vie [AMICAL]); Other 3 for knee and hip pathologies (Western Ontario and McMaster Universities Osteoarthritis [WOMAC] index; Osteoarthritis Knee and Hip Quality of Life [OAKHQOL] questionnaire; Hip and Knee Questionnaire [HKQ]), and other 4 for knee: 2 general scales (Knee Injury and Osteoarthritis Outcome Score [KOOS]; Knee Society Clinical Rating System [KSS]) and 2 specifics (Victorian Institute of Sport Assessment [VISA-P] questionnaire for patients with patellar tendinopathy and Kujala Score for patellofemoral pain). The transcultural adaptation procedure was satisfactory, albeit somewhat less rigorous for HKQ and LLFI. In no study were all psychometric properties assessed. Reliability was analyzed in all cases, except in KSS. Validity was measured in all questionnaires.


CONCLUSIONS
The transcultural adaptation procedure was satisfactory and the psychometric properties analysed were similar to both the original version and other versions adapted to other languages.
Departamento de Medicina Física y Rehabilitación, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, España. Electronic address: saragova@gmail.com.
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Gómez-Valero
Departamento de Medicina Física y Rehabilitación, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, España; Departamento de Terapia Física, Terapia Ocupacional, Medicina Física y Rehabilitación, Universidad Rey Juan Carlos, Alcorcón, Madrid, España.
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García-Pérez
Departamento de Medicina Física y Rehabilitación, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, España; Departamento de Terapia Física, Terapia Ocupacional, Medicina Física y Rehabilitación, Universidad Rey Juan Carlos, Alcorcón, Madrid, España.
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Flórez-García
Departamento de Terapia Física, Terapia Ocupacional, Medicina Física y Rehabilitación, Universidad Rey Juan Carlos, Alcorcón, Madrid, España.
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Miangolarra-Page
D006305:Health Status Indicators; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis / Q000503:physiopathology*; D007718:Knee Injuries / Q000175:diagnosis / Q000503:physiopathology*; D007719:Knee Joint / Q000503:physiopathology*; D011594:Psychometrics; D013030:Spain; D014177:Translations
Adaptación transcultural; Cross-cultural adaptation; Cuestionario; Evaluación de resultados; Knee; Outcome assessment; Questionnaire; Rodilla; Spanish version; Versión española