Reliability,validity and clinical applicability of the German version of the European Foot and Ankle Society Score |
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| Affiliation: | 1. Department of Trauma and Orthopaedic Surgery, Division of Orthopaedics, University Medical Center Hamburg-Eppendorf, Martinistr. 52, D-20246 Hamburg, Germany;2. Orthopädie Lindenstraße, Lindenstraße 49a, D-25524 Itzehoe, Germany;1. Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Germany;2. Center of Anatomy and Cell Biology, Division of Anatomy, Medical University of Vienna, Währinger Strasse 13, A-1090 Vienna, Austria;3. Department of Biomedical Sciences, University of Colorado School of Medicine at Colorado State University, Fort Collins, USA;1. Clinic of Anesthesiology, Intensive Care and Pain Medicine, University Hospital of Munich, Ludwig Maximilians University of Munich, Germany;2. Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Germany;1. Queen Elizabeth Hospital Kings Lynn, NHS Foundation Trust, United Kingdom;2. Human Anatomy Centre, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom |
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| Abstract: | BackgroundPurpose of this study was an external evaluation of the recently developed European Foot and Ankle Society (EFAS) Score.MethodsFrom July 2021 to January 2022, all consecutive patients with foot and ankle disorders were asked to complete three validated questionnaires prior to the medical examination. Validity was evaluated with correlations between the EFAS Score, Manchester-Oxford Foot Questionnaire (MOxFQ) and Foot and Ankle Outcome Score (FAOS). Cronbach’s alpha, floor and ceiling effects and the minimal important difference (MID) were determined.ResultsIn a total of 161 included patients, the EFAS Score demonstrated a very good correlation with the MOxFQ index score (r = 0.76, p < 0.001). There were no floor or ceiling effects. Cronbach’s alpha was 0.863, and the MID amounts 3 points and 7 points for significant changes respectively.ConclusionIn terms of reliability and validity, the EFAS Score demonstrated good to excellent psychometric values.A change of 7 points or more in the EFAS Score in longitudinal examinations is clinically highly relevant. |
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| Keywords: | PROM EFAS Score Foot Ankle Internal consistency Construct validity |
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