颈椎三节段融合术后相邻节段运动变化规律研究  

Movement Feature of Adjacent Segments After Cervical Three-Segment Fusion

作　　者：薛清华[1,2] 刘伟强[1,2] 

机构地区：[1]清华大学精密仪器与机械学系,北京100084 [2]深圳清华大学研究院,广东深圳518057

出　　处：《北京生物医学工程》2011年第2期120-126,共7页Beijing Biomedical Engineering

基　　金：深圳市科技计划项目(QK200603)资助

摘　　要：为研究人体颈椎三节段融合后的运动规律,本文利用三维运动信息采集系统,获取了6具猪颈椎C2-T1标本在未损伤及两种三节段融合状态下的各个节段的运动信息,计算并得到各节段运动转角;再通过分析三节段融合的相关运动规律和特点,得出三节段融合质量略差于双节段融合效果,融合后的运动幅度可降低至融合前的30%左右;通过定量比较得出两种三节段融合相对于三种双节段融合,前、后相邻节段与其它节段融合状态的运动补偿幅度均有不同程度的增加。本研究为人体多节段融合临床手术提供了定量参考和理论依据。This article aims at investigating the rules of the motion of human cervical after 3 - segment fusion,with the help of a study 3D motion information collecting system. The motion information of 6 porcine cervical specimens in intact and fusion condition was collected, and the motion range and angle of each segment were calculated. Through analyzing the movement feature,we concluded that the quality of three-level fusion was slightly worse than that of two-level fusion, and the movement range was about to 30% of the intact state. In comparison of the two kinds of three-level fusion and three kinds of two-level fusion, we found that the motion compensation range was bigger in the former ones at each level. The quantitative reference and theory evidence raised from this study will give a great support to the operation of multi-level fusion of the human cervical.

关 键 词：颈椎融合 相邻节段退化 动力学分析 运动信息采集 

分 类 号：R318.04[医药卫生—生物医学工程]