| Clinical significance of three dimensional finite element analysis on humerus fracture |
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| 作者姓名： | 苏佳灿 张春才 许硕贵 任可 王家林 薛召军 吴建国 丁祖泉 高堂成 万岷 付青格 |
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| 作者单位： | Su Jia-can,Zhang Chun-cai,XU Shuo-gui,REN Ke,WANG Jia-lin,Gao Tang-cheng,WAN Min,FU Qing-ge(Department of Orthopedics,Changhai Hospital,Second Military Medical University,Shanghai 200433,China);Xue Zhao-jun,WU Jian-guo,Ding Zu-quan(Institute of Life Science & Biological Engineering,Tongji University,Shanghai 200092,China) |
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| 摘 要： | Objective: To treat humerus fracture with three dimensional pattern and finite element analysis, providing mechanical basis for treating humerus fracture. Methods: Humerus pattern was established based on the CT images, and calculation was done by ANSYS5. 6 software. Three dimensional ten-node tetrahedron unit was selected and were divided into 2 729 nodes, 49 041 units. Distribution and amount of axial compression of humerus were analyzed when clip angle was 30°, 45°, 90° between fracture face and axial line with fixed X, Y, Z directions. Results: The distribution of stress was greatly different between fracture face and non fracture face. Stress in fracture part was fairly concentrated with incomplete symmetric distribution around the center of fracture face; Greater stress distributed in the regions 10 mm from fracture face, which was 2-3 times that of other stress regions. Conclusion: Required load must be estimated under various conditions as to select the suitable internal fixation implants dur
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Clinical significance of three dimensional finite element analysis on humerus fracture |
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| Su Jia-can,Zhang Chun-cai,XU Shuo-gui,REN Ke,WANG Jia-lin,Xue Zhao-jun,WU Jian-guo,Ding Zu-quan,Gao Tang-cheng,WAN Min,FU Qing-ge.Clinical significance of three dimensional finite element analysis on humerus fracture[J].Journal of Medical Colleges of PLA(China),2002,17(3). |
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| Authors: | Su Jia-can Zhang Chun-cai XU Shuo-gui REN Ke WANG Jia-lin Xue Zhao-jun WU Jian-guo Ding Zu-quan Gao Tang-cheng WAN Min FU Qing-ge |
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| Abstract: | Objective: To treat humerus fracture with three dimensional pattern and finite element analysis,providing mechanical basis for treating humerus fracture. Methods: Humerus pattern was established based on the CT images, and calculation was done by ANSYS5.6 software. Three dimensional ten-node tetrahedron unit was selected and were divided into 2 729 nodes, 49 041 units. Distribution and amount of axial compression of humerus were analyzed when clip angle was 30°, 45°, 90° between fracture face and axial line with fixed X, Y, Z directions. Results: The distribution of stress was greatly different between fracture face and non fracture face. Stress in fracture part was fairly concentrated with incomplete symmetric distribution around the center of fracture face; Greater stressdistributed in the regions 10 mm from fracture face, which was 2-3 times that of other stress regions. Conclusion: Required load must be estimated under various conditions as to select the suitable internal fixation implants during the treatment of humerus fracture, which can provide helpful stress environment for fracture healing. |
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| Keywords: | humerus fracture t three dimensional finite element analysis |
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