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Comparative Study
. 2025 Jan;31(1):58-64.
doi: 10.1016/j.fas.2024.07.001. Epub 2024 Jul 14.

Comparison of four patient reported outcome measures in patients with ankle fracture: A study on patient preferences and psychometric properties

Per Hviid Gundtoft  1 , Julie Ladeby Erichsen  2 , Mads Terndrup  3 , Lauritz Walsøe  4 , Lasse Pedersen  2 , Bjarke Viberg  5 , Alice Ørts  6 , Charlotte Abrahamsen  7
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Free article
Comparative Study

Comparison of four patient reported outcome measures in patients with ankle fracture: A study on patient preferences and psychometric properties

Per Hviid Gundtoft et al. Foot Ankle Surg. 2025 Jan.
Free article

Abstract

Background: The aim was to assess psychometric properties of Manchester Oxford Foot Questionnaire (MOXFQ), the Self-reported Foot and Ankle Score (SEFAS), the Olerud Molander Ankle Score (OMAS), and the Forgotten Joint Score (FJS) in adults with ankle fractures.

Methods: Patients received all four questionnaires 6, 12, 14, 24, 52, and 104 weeks following an ankle fracture. According to COSMIN guidelines, statistical tests were performed to assess floor- and ceiling effects, structural validity, construct validity and reliability. Cognitive interview was performed with 9 patients.

Results: MOXFQ showed best model fit in Confirmatory Factor Analysis. When testing construct validity, all hypotheses were accepted except for OMAS and FJS. All questionnaires had an almost perfect test-retest reliability (Interclass Correlation Coefficient 0.81 to 0.91) and Cronbach's alpha ranged from 0.76 to 0.95. MOXFQ was the best rated questionnaire.

Conclusion: All questionnaires performed well and we recommend MOXFQ for future use in ankle fracture studies.

Level of evidence: Level IV.

Keywords: Ankle fracture; Forgotten joint score; Manchester oxford foot questionnaire; Olerud molander ankle score; Patient reported outcome measures; Psychometric measurement; Self-reported foot and ankle score.

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