新型与传统锁定加压接骨板固定股骨干骨折的生物力学比较  

Biomechanical Comparison of Novel and Traditional LCP Fixation for Femoral Shaft Fractures

作　　者：李甜甜 李世芸[1] 熊鹰[2] 马勇 陈洪亮 LI Tiantian;LI Shiyun;XIONG Ying;MA Yong;CHEN Hongliang(Faculty of Mechanical and Electrical Engineering,Kunming University of Science&Technology,Kunming 650500,China;Department of Orthopedics,the Affiliated YanAn Hospital of Kunming Medical University,Kunming 650051,China;Yunnan Medical Device Inspection and Research Institute,Kunming 650101,China)

机构地区：[1]昆明理工大学机电工程学院 [2]昆明医科大学附属延安医院骨科 [3]云南省医疗器械检验研究院

出　　处：《医用生物力学》2021年第5期757-761,共5页Journal of Medical Biomechanics

摘　　要：目的对比股骨干骨折治疗采用的新型与传统锁定加压接骨板(locking compression plate,LCP)的生物力学性能,为选择更有效的接骨板提供理论依据。方法对接骨板进行弯曲强度与疲劳测试,再结合ANSYS Workbench对接骨板变形、应力及寿命进行有限元分析。结果新型LCP平均弯曲屈服载荷与弯曲强度均为传统LCP的1.4倍,新型、传统LCP平均循环次数分别为106次与47 091次,使用寿命相差33.8%。结论使用新型LCP固定股骨干骨折失效可能性小于传统LCP,新型LCP拥有更有效的生物力学稳定性。Objective To compare biomechanical properties of the traditional and novel locking compression plate( LCP) for treating femoral shaft fracture,so as to provide theoretical basis for selecting more effective bone plate. Methods The bending strength and fatigue tests on the plate were performed,and the finite element analysis on deformation,stress and life of the plate were conducted by using ANSYS Workbench. Results The average bending yield load and bending strength of the novel LCP were 1. 4 times of that of the traditional LCP,and the average cycle times of the novel and traditional LCP were 106 and 47 091,respectively. The difference of service life for two LCPs was 33. 8%. Conclusions The failure probability of the novel LCP is smaller than that of the traditional LCP,and the novel LCP has more effective biomechanical stability.

关 键 词：股骨干骨折 锁定加压接骨板 有限元分析 生物力学 

分 类 号：R687.3[医药卫生—骨科学] R318.08[医药卫生—外科学]