C5-6、T12-L1、L4-5椎间盘与相邻椎体的压缩力学特性  

The Compression Mechanical Properties of C5-6、T12-L1、L4-5 Intervertebral Disc and Adjacent Vertebral Body

作　　者：李建军[1] 张远石[2] 王溪源[2] 赵宝林[3] 马洪顺[4] 

机构地区：[1]中国医科大学附属盛京医院,沈阳110004 [2]中国医科大学附属第四医院,沈阳110004 [3]吉林大学中日联谊医院,长春130031 [4]吉林大学南岭校区工程力学系,长春130022

出　　处：《生物医学工程研究》2010年第3期193-196,共4页Journal Of Biomedical Engineering Research

摘　　要：对比分析C5-6、T12-L1、L4-5椎间盘与相邻椎体的压缩力学性质,确定不同部位的椎间盘与相邻椎体是否具有不同的压缩力学性质。人死后1 h内解剖取出死者C1-S1脊柱标本,以线锯切取C5-6、T12-L1、L4-5椎间盘与相邻椎体标本各13个。在日本岛津电子万能实验机上进行实验。实验速度为5mm/min,以统计分析和t检验的方法处理实验数据。L4-5组椎间盘与相邻椎体最大载荷大于T12-L1和C5-6组,差异显著(P<0.01);C5-6组最大位移大于L4-5组和T12-L1组,差异显著(P<0.01);L4-5组椎间盘与相邻椎体最大应力大于C5-6和T12-L1组,差异显著(P<0.01);C5-6组椎间盘与相邻椎体最大应变大于L4-5和T12-L1组,差异显著(P<0.01)。C5-6、T12-L1、L4-5椎间盘与相邻椎体标本的压缩力学性质有一定区别。To analysis the compression mechanical properties of C5-6、T12-L1、L4-5 intervertebral disc and adjacent vertebral body,and determine the disc and adjacent vertebral body of different parts whether have the different compression mechanical properties.The C1-S1 spinal specimens of human were teken out within 1 h after death.13 specimens of C5-6、T12-L1、L4-5 intervertebral disc and adjacent vertebral body were resected by the method of line saw.The test was done on the Japan shimadzu electronic universal testing aircraft.Experimental speed was 5 mm/min,statistical analysis and t test approach were used to process the experimental data.The maximum load of intervertebral disc and adjacent vertebral body of L4-5 group were greater than that of T12-L1 and C5-6 group,the difference was significant（P0.01）;The maximum displacement of C5-6 group was greater than that of L4-5 group and T12-L1 group,the difference was significant（P0.01）;The maximum stress of the L4-5 intervertebral disc and adjacent vertebral body were greater than that of C5-6 group and the T12-L1 group,the difference was significant（P0.01）;The maximum strain of the C5-6 intervertebral disc and adjacent vertebral body were greater than that of L4-5 group and the T12-L1 group,the difference was significant（P0.01）.There are a distinction between the compression mechanical character of C5-6,T12-L1,L4-5 specimens.

关 键 词：人脊柱 C5-6 T12-L1 L4-5 压缩 力学性质 对比分析 

分 类 号：R318[医药卫生—生物医学工程]