On the determination of the angular orientation of a vertebra

In this paper we consider the spatial orientation of vertebrae. We take the view that, in determining their rotation angles from X-rays, the procedure applied by Drerup yields the most reliable empirical results, viz. the three angles through which a vertebra rotates about its own symmetry axes in a...

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Bibliographic Details
Published inJournal of biomechanical engineering Vol. 124; no. 1; p. 134
Main Authors Goris, B C E, Kuipers, M, De Vries, J, Wever, D J, Verkerke, G J, Veldhuizen, A G
Format Journal Article
LanguageEnglish
Published United States 01.02.2002
Subjects
Algorithms
Biomechanical Phenomena
Humans
Models, Biological
Movement - physiology
Radiography
Rotation
Spine - diagnostic imaging
Spine - physiology
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Summary:In this paper we consider the spatial orientation of vertebrae. We take the view that, in determining their rotation angles from X-rays, the procedure applied by Drerup yields the most reliable empirical results, viz. the three angles through which a vertebra rotates about its own symmetry axes in a specific sequence. With a view to the further use of this information to analyze deformations or the motion of a spine we recommend that the Drerup angles be converted into the well-known Eulerian angles. How this can be done is the subject of this report.
ISSN:0148-0731
DOI:10.1115/1.1431265