Validation of a morphometric reconstruction technique applied to a juvenile pelvis

Watson, Peter; Watson, P J; O'Higgins, P; Fagan, M J; Dobson, C A

doi:10.1243/09544119jeim810

Authors

Dr Peter Watson P.J.Watson@hull.ac.uk
Lecturer in Mechanical Engineering

P J Watson

P O'Higgins

M J Fagan

C A Dobson

Abstract

Three-dimensional reconstructions of bone geometry from microCT (computed tomography) data are frequently used in biomechanical and finite element analyses. Digitization of bone models is usually a simple process for specimens with a complete geometry, but in instances of damage or disarticulation it can be very challenging. Subsequent to digitization, further imaging techniques are often required to estimate the geometry of missing bone or connecting cartilage. This paper presents an innovative approach to the reconstruction of incomplete scan data, to reproduce proper anatomical arrangements of bones, including absent connecting cartilaginous elements. Utilizing geometric morphometric tools, the reconstruction technique is validated through comparison of a reconstructed 9 year old pelvis, to the original CT data. A principal component analysis and an overlay of the two pelves provide a measure of the accuracy of the reconstructed model. Future work aims to investigate the biomechanical effects of any minor positional error on the bone's predicted structural properties through the use of finite element analysis.

Citation

Watson, P., O'Higgins, P., Fagan, M. J., & Dobson, C. A. (2011). Validation of a morphometric reconstruction technique applied to a juvenile pelvis. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 225(1), 48-57. https://doi.org/10.1243/09544119jeim810

Journal Article Type	Article
Acceptance Date	Jun 17, 2010
Online Publication Date	Jul 29, 2010
Publication Date	Jan 1, 2011
Journal	Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine
Print ISSN	0954-4119
Electronic ISSN	2041-3033
Publisher	SAGE Publications
Peer Reviewed	Peer Reviewed
Volume	225
Issue	1
Pages	48-57
DOI	https://doi.org/10.1243/09544119jeim810
Keywords	Geometric morphometric methods; Morphometric reconstruction; Juvenile pelvis
Public URL	https://hull-repository.worktribe.com/output/400012
Publisher URL	http://journals.sagepub.com/doi/10.1243/09544119JEIM810
PMID	21381487