新型外固定系统在胫骨骨折上的生物力学研究  

A biomechanical study of new developed external fixation system on tibia fracture

作　　者：王美[1,2] 赵文[2] 申庆民 刘子豪[1,2] 

机构地区：[1]遵义医学院研究生院,贵州遵义563000 [2]北京航天总医院骨科,北京100076

出　　处：《局解手术学杂志》2016年第10期742-744,共3页Journal of Regional Anatomy and Operative Surgery

基　　金：中国航天科技集团公司第一研究院技术创新基金(2015YC01)

摘　　要：目的将新研制出的一种可实现三维空间万向调节的新型外固定支架系统进行生物力学特性的测试,评定该外固定支架系统的有效性,为临床研究提供可靠的理论依据。方法选取10具新鲜成年男性尸体的胫骨标本,制成横断胫骨骨折模型。实验组用自行研制的外固定系统进行骨折固定,对照组采用临床常用的Hoffman 2型外固定支架;对固定好的胫骨骨折模型行轴向压缩、扭转实验,并将测试所得数据结果进行统计学分析。结果 2组在轴向压缩、水平扭转方面比较,差异无统计学意义(P>0.05),说明新型外固定支架系统与临床常用的Hoffman 2型外固定支架的轴向压缩、抗扭转方面无差异,符合临床应用标准。结论新型外固定支架系统的设计能够满足骨折固定对生物力学的要求,为骨折外固定提供了更多的选择。Objective To test the biomechanical properties and evaluate the feasibility of the new developed exteInal fixator system,so as to provide reliable theoretical basis for further clinical research. Methods The tibia of 10 fresh male cadaver were made into fracture model. In order to fix the fracture of tibia, experimental group were treated with the new developed external fixator system and the control group were treated with the Hoffman 2 external fixator which was used in clinic commonly. Then axial compression and horizontal torsion test were made on tibia fracture model. The test results were recorded and statistically analyzed. Results There was no statistical difference on the aspect of the ability to resist axial compression and horizontal torsion between the experimental group and the control group（P 〉 0.05 ）. The new developed external fixator system could meet the criterion in clinical application. Conclusion The new developed external fixation system can meet the requirement of biomechanics on fixing the fracture of bone, and it can greatly simplify and diversify the clinical applica- tion of external fixation device.

关 键 词：外固定 生物力学 胫骨骨折 

分 类 号：R683.42[医药卫生—骨科学]