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 language | English |
---|---|
Pages (from-to) | 1393-1396 |
Number of pages | 4 |
Journal | Qinghua Daxue Xuebao/Journal of Tsinghua University |
Volume | 47 |
Issue number | 8 |
Publication status | Published - 1 Aug 2007 |
Keywords
- Bone volume
- Mechanical property
- Micro-finite element analysis
- Vertebral body
ASJC Scopus subject areas
- General Engineering
- Computer Science Applications
- Applied Mathematics