Inter- and intraclass correlations for three standard foot radiographic measurements for plantar surface angles. Which measure is most reliable?

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dc.contributor.author Hohmann, Erik
dc.contributor.author Myburgh, Jolandie
dc.contributor.author Keough, Natalie
dc.contributor.author Tetsworth, Kevin
dc.contributor.author Glatt, Vaida
dc.date.accessioned 2019-11-15T10:46:29Z
dc.date.issued 2019-10
dc.description.abstract BACKGROUND : The purpose of this study was to evaluate the reliability and reproducibility of three commonly used radiographic measures for plantar surface angles. METHODS : The calcaneal angle (CA), calcaneal pitch angle (CPA), and length-height index (LHI) was measured by three independent examiners on two occasions on lateral foot radiographs. Intra- and inter-rater correlations were calculated using a general linear estimate model and post-hoc tests for repeated measures. Bland–Altman’s plots with limits of agreement were used for observer differences in scores. RESULTS : The intra-class correlations for the CA ranged from 0.91 to 0.94, for the CPA from 0.93 to 0.98, and for the LHI from 0.96 to 0.97. The inter-class correlations were 0.80 for CA, 0.83 for CPA and 0.93 for LHI. CONCLUSIONS : The results of this study strongly suggest that the length-height index was the most consistent and reliable measure for arch height. LEVEL OF EVIDENCE : Diagnostic Level II, validity. en_ZA
dc.description.department Anatomy en_ZA
dc.description.embargo 2020-10-01
dc.description.librarian hj2019 en_ZA
dc.description.uri http://www.elsevier.com/locate/fas en_ZA
dc.identifier.citation Hohmann, E., Myburgh, J., Keough, N. et al. 2019, 'Inter- and intraclass correlations for three standard foot radiographic measurements for plantar surface angles. Which measure is most reliable?', Foot and Ankle Surgery, vol. 25, no. 5, pp. 646-653. en_ZA
dc.identifier.issn 1268-7731 (print)
dc.identifier.issn 1460-958 (online)
dc.identifier.other 10.1016/j.fas.2018.07.007
dc.identifier.uri http://hdl.handle.net/2263/72321
dc.language.iso en en_ZA
dc.publisher Elsevier en_ZA
dc.rights © 2018 Published by Elsevier Ltd on behalf of European Foot and Ankle Society. Notice : this is the author’s version of a work that was accepted for publication in Foot and Ankle Surgery. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Foot and Ankle Surgery, vol. 25, no. 5, pp. 646-653, 2019. doi : 10.1016/j.fas.2018.07.007. en_ZA
dc.subject Arch height en_ZA
dc.subject Radiological arch measures en_ZA
dc.subject Motion en_ZA
dc.subject Flatfoot en_ZA
dc.subject Alignment en_ZA
dc.subject Validity en_ZA
dc.subject Agreement en_ZA
dc.subject Reliability en_ZA
dc.subject Foot posture index en_ZA
dc.subject Length-height index (LHI) en_ZA
dc.subject Calcaneal angle (CA) en_ZA
dc.subject Calcaneal pitch angle (CPA) en_ZA
dc.title Inter- and intraclass correlations for three standard foot radiographic measurements for plantar surface angles. Which measure is most reliable? en_ZA
dc.type Postprint Article en_ZA


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