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Darwish, Alqahtani, and Alfaedi: Validation and cultural adaptation of the American Orthopaedic Foot and Ankle Society’s Ankle-Hindfoot Scale

Introduction: The use of outcome assessment scales in scientific studies is necessary so that different treatment forms can be compared among individuals with the same diagnosis.

Objectives: This study targeted the translation and validation of the American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot scale into Arabic.

Materials and methods: The scale was applied to 93 patients with ankle-hindfoot joint conditions. The patients were also assessed using the SF-36 (Short Form questionnaire-36 items) quality-of-life generic questionnaire and the visual analogue scale (VAS).

Results: Pearson’s correlation coefficient (PCC) was 0.77 (P < 0.001). The functional capacity, pain and energy components of SF-36 had the highest correlations (0.71, 0.62 and 0.63, respectively; P < 0.001) with the AOFAS Ankle-Hindfoot scale. The PCC between VAS and AOFAS Ankle-Hindfoot scale was inversely proportional (–0.681; P < 0.001).

Conclusions: We conclude that the version of AOFAS Ankle-Hindfoot scale for the Arabic language was successfully translated and culturally adapted for application to Arabic patients, with satisfactory reliability and construct validity.

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