Danish Language Version of the American Orthopedic Foot and Ankle Society Ankle-Hindfoot Scale (AOFAS-AHS) in Patients with Ankle-Related Fractures

Julie Erichsen*, Lonnie Froberg, Bjarke Viberg, Frank Damborg, Carsten Jensen

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Abstrakt

Background: The American Orthopedic Foot and Ankle Society Ankle-Hindfoot Scale (AOFAS-AHS) is, to date, the most widely used scale for evaluating foot and ankle disorders. We translated it into Danish and evaluated the reliability, validity and responsiveness of the Danish version of the AOFAS-AHS (AOFAS-DK) in patients aged >18 years with isolated ankle-related fractures. Method: Forward–backward translation, cross-cultural adaption, and validation study were performed. In total, 125 patients completed the AOFAS-DK and the Self-reported Foot and Ankle Score (SEFAS) at 3 time points after the date of fracture. The evaluation was performed according to the Consensus-based Standards for the selection of health Measurement Instruments guidelines. Results: The intra-class correlation coefficient level of the AOFAS-DK total score was 0.87 (95% confidence interval: 0.80–0.91). Cronbach's alpha (CA) for the AOFAS-DK function subscale was 0.62, whereas the floor and ceiling effect of the function subscale was 32% (T1) and 19% (T2), respectively. Construct validity was correlated with the SEFAS, and >75% of the predefined hypotheses could be confirmed. Responsiveness was analyzed using longitudinal data, and showed that the AOFAS-DK can detect changes in scores. Conclusion: The Danish version of the self-administered section of the AOFAS-AHS showed overall good reliability, validity, and responsiveness. The low CA values and the presence of the floor effect might be due to the low number of items and response options available in the scale. The AOFAS-DK can be used to evaluate physical function in patients with ankle-related fractures.

OriginalsprogEngelsk
TidsskriftJournal of Foot and Ankle Surgery
Vol/bind59
Udgave nummer4
Sider (fra-til)657-663
ISSN1067-2516
DOI
StatusUdgivet - 1. jul. 2020

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