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.
On the Determination of the Angular Orientation of a Vertebra
Contributed by the Bioengineering Division for publication in the JOURNAL OF BIOMECHANICAL ENGINEERING. Manuscript received by the Bioengineering Division Mar. 13, 2001; revised manuscript received Aug. 31, 2001. Associate Editor: C. H. Turner.
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Goris , B. C. E., Kuipers , M., De Vries , J., Wever , D. J., Verkerke , G. J., and Veldhuizen, A. G. (August 31, 2001). "On the Determination of the Angular Orientation of a Vertebra ." ASME. J Biomech Eng. February 2002; 124(1): 134–136. https://doi.org/10.1115/1.1431265
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