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Title
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Femoral anteversion measurement : evaluation of inter- and intraobserver reliability
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Author
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Abstract
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| The aim of this study was to evaluate the inter- and intraobserver reliability of a CT-based femoral anteversion measurement. 17 CT scans showing an abnormal anteversion on one side were presented to 6. Three measurements of all scans were obtained : two bilateral measurements and a third measurement with a flipped CT scan. Interobserver correlation results using the spearman test for left, right and anteversion difference had a mean of respectively : 0.918, 0.760 and 0.757. Intraobserver correlation had a maximum of respectively : 0,99, 0,89 and 0,94. Correlation coefficients were consistently higher for the second measurement. The lower correlation boarder of 0,8 was often exceeded. Intraobserver correlation was higher than interobserver correlation. As we evaluated a high variance in interobserver reliability, we recommend an accurate and objective measurement of the anteversion angle. A personal measurement and comparison to the radiological protocol is necessary. |
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Language
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English
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Source (journal)
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Acta orthopaedica Belgica. - Bruxelles, 1946 - 2002
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Publication
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Bruxelles
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2020
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ISSN
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0001-6462
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Volume/pages
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86
:1
(2020)
, p. 17-21
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ISI
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000538153600003
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Pubmed ID
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32490768
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