| Three dimensional finite element analysis of anatomic distal radius Nitinol memory connector treating distal radius fracture |
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| 作者姓名： | 苏佳灿 张春才 禹宝庆 许硕贵 王家林 纪方 张雪松 吴建国 王保华 薛召军 丁祖泉 |
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| 作者单位： | [1]DepartmentofOrthopedics,ChanghaiHospital,SecondMilitaryMedicalUniversity,Shanghai200433,China [2]InstituteofLifeScienceandBiologicalEngineering,TongjiUniversity,Shanghai200092,China |
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| 摘 要： | To study the memory biomechanical character of anatomic distal radius Nitinol memory connec-tor ( DRMC ) in treating distal radius fracture. Methods: Establishing three dimensional model and finite element anal-ysis, we calculated the stress in and around the fracture faces when distal radius fracture was fixated with DRMC. Re-suits: Axial holding stress produced by holding part of DRMC on distal radius was 14.66 MPa. The maximum stress of holding part was 40 - 70 MPa, the minimum stress was 3 - 7 MPa, and the stress of compression part was 20 - 40 MPa.Conclusion: The distribution of stress produced by DRMC around the fracture line is reasonable, and axial holding stress can help stabilize fracture during earlier period. The existence of longitudal compression and memory effect can transfer fixated disused section into developed section and enhance fracture healing.
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| 关 键 词： | 三维有限元分析 桡骨远端镍钛合金记忆连接器 桡骨远端骨折 生物力学 |
Three dimensional finite element analysis of anatomic distal radius Nitinol memory connector treating distal radius fracture |
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| SU Jia-can,ZHANG Chun-cai,YU Bao-qing,XU Shuo-gui,WANG Jia-lin,JI Fang,ZHANG Xue-song WU Jian-guo,WANG Bao-hua XUE Zhao-jun DING Zu-quan.Three dimensional finite element analysis of anatomic distal radius Nitinol memory connector treating distal radius fracture[J].Journal of Medical Colleges of PLA(China),2003,18(4):226-229. |
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| Authors: | SU Jia-can ZHANG Chun-cai YU Bao-qing XU Shuo-gui WANG Jia-lin JI Fang ZHANG Xue-song WU Jian-guo WANG Bao-hua XUE Zhao-jun DING Zu-quan |
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| Institution: | SU Jia-can,ZHANG Chun-cai,YU Bao-qing,XU Shuo-gui,WANG Jia-lin,JI Fang,ZHANG Xue-song WU Jian-guo,WANG Bao-hua XUE Zhao-jun DING Zu-quan
Department of Orthopedics,Changhai Hospital,Second Military Medical University,Shanghai 200433,China Institute of Life Science and Biological Engineering,Tongji University,Shanghai 200092,China |
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| Abstract: | Objective: To study the memory biomechanical character of anatomic distal radius Nitinol memory connector ( DRMC) in treating distal radius fracture. Methods: Establishing three dimensional model and finite element analysis, we calculated the stress in and around the fracture faces when distal radius fracture was fixated with DRMC. Results: Axial holding stress produced by holding part of DRMC on distal radius was 14. 66 MPa. The maximum stress of holding part was 40-70 MPa, the minimum stress was 3-7 MPa, and the stress of compression part was 20 - 40 MPa. Conclusion: The distribution of stress produced by DRMC around the fracture line is reasonable, and axial holding stress can help stabilize fracture during earlier period. The existence of longitudal compression and memory effect can transfer fixated disused section into developed section and enhance fracture healing. |
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| Keywords: | distal radius Nitinol memory connector distal radius fracture 3 dimensional finite element analysis memory biomechanics |
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