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An evaluation of the measurement properties of the Olerud Molander Ankle Score in adults with an ankle fracture
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McKeown, Rebecca, Parsons, Helen, Ellard, David R. and Kearney, Rebecca S. (2021) An evaluation of the measurement properties of the Olerud Molander Ankle Score in adults with an ankle fracture. Physiotherapy, 112 . pp. 1-8. doi:10.1016/j.physio.2021.03.015 ISSN 0031-9406.
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Official URL: http://dx.doi.org/10.1016/j.physio.2021.03.015
Abstract
Objectives
The aim of this study is to evaluate the measurement properties of the Olerud Molander Ankle Score in adults with an ankle fracture.
Methods
Patients completed outcome measure questionnaires at baseline, six, 10- and 16-weeks post-injury as part of an ongoing clinical trial on ankle fracture rehabilitation. The internal consistency, convergent validity, structural validity and interpretability of the Olerud Molander Ankle Score was assessed. This was achieved through using the respective analysis methods of Cronbach's alpha, correlation coefficients, principal component analysis, evaluation of floor and ceiling scores and estimation of the minimally important change using anchor-based methods.
Results
The Olerud Molander Ankle Score showed adequate convergent validity against hypotheses set in relation to scores of comparator instruments. Principal component analysis demonstrated that the measure has two subscales: ankle function and ankle symptoms. The internal consistency of the measure and the ankle function subscale was sufficient, but inconclusive for the ankle symptoms subscale. There were no floor and ceiling effects present within the scores and the estimated minimally important change was 9.7 points.
Conclusion
The Olerud Molander Ankle Score demonstrates sufficient measurement properties and is likely to be primarily measuring the construct of patient reported function following ankle fracture. Further research should evaluate the relevance of other domains to individuals recovering from and ankle fracture, such as social participation and psychological wellbeing. The development of a core outcome set would be advantageous to standardise outcome measurement collection in this area.
Item Type: | Journal Article | ||||||
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Subjects: | H Social Sciences > HN Social history and conditions. Social problems. Social reform R Medicine > R Medicine (General) R Medicine > RD Surgery |
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Divisions: | Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Clinical Trials Unit Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School |
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Library of Congress Subject Headings (LCSH): | Ankle -- Fractures , Ankle -- Fractures -- Treatment -- Evaluation, Ankle -- Fractures -- Patients -- Rehabilitation, Outcome assessment (Medical care), Quality of life | ||||||
Journal or Publication Title: | Physiotherapy | ||||||
Publisher: | Elsevier | ||||||
ISSN: | 0031-9406 | ||||||
Official Date: | 1 September 2021 | ||||||
Dates: |
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Volume: | 112 | ||||||
Page Range: | pp. 1-8 | ||||||
DOI: | 10.1016/j.physio.2021.03.015 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||
Date of first compliant deposit: | 17 May 2021 | ||||||
Date of first compliant Open Access: | 17 May 2021 | ||||||
RIOXX Funder/Project Grant: |
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