Relationship between apparent elastic modulus and bone volume of 62 year old and 69 year old vertebral trabecular

He Gong, Ming Zhang, Dong Zhu, Rui Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

This paper investigates the relationship between the mechanical properties and the volume of cancellous bone. Ninety L4 vertebral trabecular specimens obtained from 62 year old and 69 year old males were scanned using a micro-computed tomography (Micro-CT) system and then converted to micro-finite element models. The apparent elastic moduli in the three orthogonal directions of the 62 year old group were all significantly greater than those of the 69 year old group. The relationships between the elastic modulus and the bone volume differed with age and orientation. The apparent elastic moduli in the on-axis direction of the 62 year old group were mainly determined by the bone volume; however, deterioration of the micro-architecture of the senile vertebral trabecular bone plays a more important role in explaining the decease of both on-axos and off-axis mechanical properties with ageing.
Original languageEnglish
Pages (from-to)1393-1396
Number of pages4
JournalQinghua Daxue Xuebao/Journal of Tsinghua University
Volume47
Issue number8
Publication statusPublished - 1 Aug 2007

Keywords

  • Bone volume
  • Mechanical property
  • Micro-finite element analysis
  • Vertebral body

ASJC Scopus subject areas

  • Engineering(all)
  • Computer Science Applications
  • Applied Mathematics

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