初始密度对骨自优化结果的影响  

EFFECTS OF INITIAL DENSITY ON SELF-OPTIMIZING RESULTS OF BONE

作　　者：宫赫[1] 朱兴华[1] 

机构地区：[1]吉林工业大学,长春130025

出　　处：《中国生物医学工程学报》2000年第3期276-280,299,共6页Chinese Journal of Biomedical Engineering

基　　金：国家自然科学基金!资助项目 (39970 191) ;吉林省科技发展计划项目!(19980 5 5 4 0 1)

摘　　要：骨自优化理论在研究骨的生长机理 ,以及预测非正常情况下 (如骨折后的修复 ,多孔覆盖植入物附近骨的生长过程等 )骨的适应过程具有非常重要的意义 ,是从宏观角度研究受力与生长的关系。本文将骨自优化理论和有限元法结合起来 ,用计算机模拟了悬臂梁模型的密度分布及激励情况 ,得到了类似于工程中的桁架结构。重点讨论了参考激励值K固定时 ,初始均匀密度的变化对结构最终形状和质量的影响。并用骨痂吸收的实际例子再一次验证了初始均匀密度的影响。It is a heat point to studying the relation between load and growth from macroscopic angle. The apparent density distribution and the stimulus of a cantilever beam were simulated in a computer model by combining the self-optimizing theory of bone with the finite element method. A configuration similar to a frame work in engineering was achieved. The effect of initial uniform density on the end configuration and mass were vitally discussed with a fixed reference value. The absorption of auxiliary bone was cited again to verify the effect of initial uniform density.

关 键 词：骨自优化理论 有限元法 骨重建 骨痂 初始密度 

分 类 号：R68[医药卫生—骨科学] R318.01[医药卫生—外科学]