Ontogeny of Size and Shape Sexual Dimorphism in the Ilium: A Multislice Computed Tomography Study by Geometric Morphometry

• NCJ Number: 246040
• Journal: Journal of Forensic Sciences Volume: 58 Issue: 2 Dated: March 2013 Pages: 303-310
• Author(s): Marie Faruch Bilfeld, M.D.; Fabrice Dedouit, M.D., Ph.D.; Nicolas Sans, M.D., Ph.D.; Hervé Rousseau, M.D., Ph.D.; Daniel Rougé, M.D., Ph.D.; Norbert Telmon, M.D., Ph.D.
• Date Published: March 2013
• Length: 8 pages
• Publication Format: Article
• Publication Type: Report (Technical Assistance)
• Language: English
• Country: United States of America

Annotation

This study examined dimorphic differences in the ilium using geometric morphometric analysis of 10 osteometric landmarks recorded by multislice computed tomography, based on three-dimensional reconstructions of 188 children.

Abstract

Researchers studied sexually dimorphic differences in the ilium using geometric morphometric analysis of 10 osteometric landmarks recorded by multislice computed tomography, based on three-dimensional reconstructions of 188 children 95 boys, 93 girls of mixed origins living in the area of Toulouse, southern France, and ranging in age from 1 to 18 years. Researchers used geometric morphometrics methodology first to test sexual dimorphism in size centroid size and shape Procrustes residuals and second to examine patterns of shape change with age development and size change with age growth. On the basis of statistical significance testing, the ilium shape became sexually dimorphic at 11 years of age, although visible shape differences were observed as early as 1 year of age. There was no statistically significant difference in size between sexes. Trajectories of shape development and size growth differed throughout ontogeny and between sexes. Abstract published by arrangement with John Wiley & Sons.