Relationship between mechanical property of cancellous bone and hardness of trabeculae
Relationship between mechanical property of cancellous bone and hardness of trabeculae
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DOI：
10.1299/jsmec.47.1075
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发表时间：
2004-12-01
期刊：
影响因子：
--
通讯作者：
Tanaka, M
中科院分区：
文献类型：
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作者：
Todoh, M;Ihara, M;Tanaka, M
骨的宏观性质取决于微观的结构组织和微观结构元素的性质。对于松质骨，骨小梁的网络结构，即直径/厚度为亚毫米的条/板状骨单元，导致了作为多孔介质的各向异性性质，研究松质骨的力学性质与骨小梁的微观结构和微观力学性质之间的关系具有重要意义。在此背景下，人们一直致力于单根小梁的力学试验。本文采用维氏硬度计测试了单骨小梁的力学性能，用X射线衍射仪测定了羟基磷灰石晶体的含量。结果与松质骨的宏观力学和结构特性有关，宏观的骨特性取决于微观结构组织和微观结构元素的性质。对于松质骨，骨小梁的网络结构，即直径/厚度为亚毫米的条/板状骨单元，导致了作为多孔介质的各向异性性质，研究松质骨的力学性质与骨小梁的微观结构和微观力学性质之间的关系具有重要意义。在此背景下，人们一直致力于单根小梁的力学试验。本文采用维氏硬度计测试了单骨小梁的力学性能，用X射线衍射仪测定了羟基磷灰石晶体的含量。讨论了结果与松质骨的宏观力学和结构特性有关。
Macroscopic bone properties depend on the microscale structural organization and the properties of microstructural elements. In the case of cancellous bone, the network structure of trabeculae, i.e., bar/plate bone elements of submillimeter diameter/thickness, results in the anisotropic properties as a porous media, and it is important to investigate the mechanical properties of cancellous bone with relation to the microstructural and micromechanical properties of trabeculae. Efforts have been devoted for the mechanical test of single trabecula in this context. In this article, the mechanical property of single trabecula was examined by means of Vickers hardness test, and the content of hydroxyapatite crystals was evaluated by X-ray diffraction analysis. The results were discussed relating to the macroscopic mechanical and structural properties of cancellous bone.Macroscopic bone properties depend on the microscale structural organization and the properties of microstructural elements. In the case of cancellous bone, the network structure of trabeculae, i.e., bar/plate bone elements of submillimeter diameter/thickness, results in the anisotropic properties as a porous media, and it is important to investigate the mechanical properties of cancellous bone with relation to the microstructural and micromechanical properties of trabeculae. Efforts have been devoted for the mechanical test of single trabecula in this context. In this article, the mechanical property of single trabecula was examined by means of Vickers hardness test, and the content of hydroxyapatite crystals was evaluated by X-ray diffraction analysis. The results were discussed relating to the macroscopic mechanical and structural properties of cancellous bone.