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A Multiscale Computational Model for the Growth of the Cranial Vault in Craniosynostosis

[+] Author Affiliations
Chanyoung Lee, Joan T. Richtsmeier, Reuben H. Kraft

The Pennsylvania State University, State College, PA

Paper No. IMECE2014-38728, pp. V009T12A061; 6 pages
doi:10.1115/IMECE2014-38728
From:
  • ASME 2014 International Mechanical Engineering Congress and Exposition
  • Volume 9: Mechanics of Solids, Structures and Fluids
  • Montreal, Quebec, Canada, November 14–20, 2014
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4958-3
  • Copyright © 2014 by ASME

abstract

Craniosynostosis is a condition defined by premature closure of cranial vault sutures, which is associated with abnormalities of the brain and skull. Many causal relationships between discovered mutations and premature suture closure have been proposed but an understanding of the precise mechanisms remains elusive. This article describes a computational framework of biological processes underlying cranial growth that will enable a hypothesis driven investigation of craniosynostosis phenotypes using reaction-diffusion-advection methods and the finite element method. Primary centers of ossification in cranial vault are identified using an activator-substrate model that represents the behavior of key molecules for bone formation. Biomechanical effects due to the interaction between growing bone and soft tissue is investigated to elucidate the mechanism of growth of cranial vault.

Copyright © 2014 by ASME

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