Paper Title:
Relationship of Morphological and Mechanical Characteristics in Vertebral Trabecular Bone
  Abstract

Several researchers investigated the mechanical characteristics of human trabecular bone using finite element analysis (FEA) based on micro computed tomography (μ-CT). There were few investigations on morphological and mechanical characteristics of vertebral trabecular bones. This study analyzed the relationship between morphological and mechanical characteristics in the regional vertebral trabecular bones using μ-CT and μ-FEA. Two specimens were obtained from the 12th thoracic vertebral bodies of cadavers (85 years female and 48 years male). In each vertebral body, fifteen regions were selected from two-dimensional (2D) images acquired from μ-CT. Voxelbased three-dimensional (3D) finite element models, with 444 cubic block, were generated from each region for simulated compression test. The relationship between morphological characteristics, such as bone volume fraction, trabecular thickness, trabecular separation, trabecular number and structure model index, and mechanical characteristics, such as structural modulus (E†), was analyzed by bivariate correlation coefficient. As a result, the region of center column and inferior layer had the highest density. However, structural moduli in center column and middle layer were the biggest. The results indicated that there was a regional difference between morphological and mechanical characteristics of vertebral trabecular bone. In addition, for more exact evaluation of osteoporosis, it was recommended to analyze not only the mechanical characteristics but also the morphology characteristics.

  Info
Periodical
Key Engineering Materials (Volumes 342-343)
Edited by
Young-Ha Kim, Chong-Su Cho, Inn-Kyu Kang, Suk Young Kim and Oh Hyeong Kwon
Pages
41-44
DOI
10.4028/www.scientific.net/KEM.342-343.41
Citation
T. W. Lee, C. Y. Ko, D. G. Woo, H. S. Kim, "Relationship of Morphological and Mechanical Characteristics in Vertebral Trabecular Bone", Key Engineering Materials, Vols. 342-343, pp. 41-44, 2007
Online since
July 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Karla Noemy Kun, Lorand Kun, Ramona Nagy, Karoly Menyhardt, Dana Silaghi-Perju, Cristian Sorin Nes, Andor Bogdan
Chapter 5: Biomechanics
Abstract:This work presents an experimental program to determine the mechanical properties of cancellous bone in the femoral head as a function of...
273
Authors: Petr Marcián, Zdeněk Florian, Ladislava Horáčková, Jozef Kaiser, Libor Borák
Chapter 6: Deformation, Fracture and Modeling of Materials in Biomedicine
Abstract:Using porous bioceramics became recently an alternative approach to increase bone density which is a key factor for successful dental implant...
362