摘要
Wolff定律指出 :骨能够响应力学激励来改变其表观密度和骨小梁分布的方向 ,表明骨再造是各项异性行为。本研究基于各项异性损伤修复理论并结合自我组织控制模型 ,提出更符合骨再造实际生理行为的基于损伤修复理论的各向异性自我组织控制骨再造模型 ,并以股骨近端为例进行了模拟 ,得到的结果在密度分布与主应力迹线分布上和实际都非常一致。
Wolff's law states that Bone tissue changes apparent density and trabecular orientation in response to mechanics stimulus, that means bone remodelling is anisotropic behavior. The purpose of this paper is to present an anisotropic bone remodeling self - organizational control model. This work was based on the damage - repair theory and combined the bone self - organizational control process. The model is much more accordant with bone remodeling practical physiology behaviors. This model was applied to the study of the remodelling evolution of the proximal extremity of the femur, the results of apparent density and principal stresses trajectories were very similar to the experimental data. Different formulas were adopted to calculate the apparent density. The results are subtly different. The differences were discussed and analyzed in detail.
出处
《中国生物医学工程学报》
EI
CAS
CSCD
北大核心
2004年第6期554-561,共8页
Chinese Journal of Biomedical Engineering
基金
国家自然科学基金资助项目 (10 3 72 0 3 4)
博士点基金资助项目 (2 0 0 2 0 183 0 2 6)
吉林省科技发展计划项目 (19980 5 5 4-0 1)
关键词
损伤修复理论
自我组织控制模型
各向异性
骨再造
Biomechanics
Biomedical engineering
Data reduction
Physiological models
Tissue
