Spatial Distribution of Biomechanical Characteristics for Trabecular Bone in the Femoral Head with Osteonecrosis
10.16156/j.1004-7220.2022.01.04
- VernacularTitle:股骨头坏死松质骨生物力学特征的空间分布规律
- Author:
Chenglong FENG
1
;
Xianda YANG
1
;
Wentao FENG
1
;
Lizhen WANG
1
;
Yubo FAN
2
Author Information
1. Beijing Advanced Innovation Centre for Biomedical Engineering, Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University,
2. Beijing Advanced Innovation Centre for Biomedical Engineering, Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering； School of Engineering Medicine, Beihang University,
- Publication Type:Journal Article
- Keywords:
osteonecrosis of the femoral head (ONFH);
trabecular bone;
microstructural parameters;
mechanical properties;
spatial distribution
- From:
Journal of Medical Biomechanics
2022;37(1):E027-E032
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the spatial distribution of microstructural parameters and mechanical properties for trabecular bone in the femoral head with osteonecrosis. Methods Microstructural parameters and mechanical properties of trabecular bone in different regions were analyzed by combined use of imaging measurements and numerical simulation method, and the spatial distribution of biomechanical properties for trabecular bone along coronal, sagittal and vertical directions was investigated. Results Microstructural characteristics and mechanical properties of trabecular bone were Y-shaped distributed along coronal and sagittal directions, and mechanical properties of trabecular bone in Y-shaped region were higher than those in the other regions. Such distribution characteristics was consistent with the location of principle compressive group in the femoral head. Conclusions Necrotic lesions in Y-shaped region had a greater influence on stress distribution of the femoral head and might cause the deterioration of osteonecrosis. The spacial correlation between necrotic lesions and Y-shaped region should be fully considered during clinical diagnosis.
