颈椎旋转手法的数字解剖和三维有限元研究

发布时间：2018-06-11 19:43

本文选题：颈椎定轴旋转手法 + 三维有限元　；参考：《第一军医大学》2006年硕士论文

【摘要】：目的 (1)对颈椎定点旋转手法作用时拇指最大推扳力进行定量研究，为推拿手法的数字化提供依据；为进一步进行颈椎定点旋转手法的计算机数字化研究提供生物力学的加载条件。(2)在计算机上建立一个颈椎各结构的三维数字化模型，为推拿手法的直观的可视化研究，提供一个平台。(3)模拟旋转手法作用，对其解剖位置、位移的变化进行实时监测，，用以研究手法作用的机理，探讨提高手法疗效的方法，减少手法的意外和损伤。(4)探讨进行颈椎定点旋转手法时正常颈椎椎体、终板和后部结构的内在应力及位移分布的特点，以分析手法的机理、安全性与合理性。方法 (1)对46名受试者进行颈椎坐位旋转手法操作，应用压力传感器检测系统，检测并记录出现咔哒声响时术者拇指顶推受试者第四颈椎棘突的最大推扳力。(2)使用螺旋CT，以1mm的间隔，对1具男性青年新鲜尸体的颈椎标本沿轴向进行断层扫描。颈椎的CT图像输入计算机，利用Matlab6.0提取图片中轮廓线数据矩阵，转换为dat文档后输入ANSYS8.0建模。(3)分析：在Ansys 8.0系统中加载边界条件，计算和分析手法作用时正常颈椎椎体、终板和后部结构、椎间盘的位移和内在应力的变化过程。计算颈椎各结构的应力和位移的大小，显示颈椎结构的内部应力和位移的分布情况。(4)在模型上删除寰枢椎以外的骨性实体模型，以利于直接观察和判断寰枢椎之间发生旋转时解剖位置的相对变化。取枢椎棘突顶点(A点)、齿突垂直轴心(B点)以及两者之间连线的中点
[Abstract]:Objective 1) to quantitatively study the maximum push and pull force of the thumb when the cervical spine rotates at a fixed point, so as to provide the basis for the digitization of massage manipulation. In order to provide biomechanical loading conditions for further research on the computer digitization of cervical spine rotation manipulation, a three-dimensional digitized model of cervical vertebrae structures is established on the computer, which can be used to visualize the manipulation of massage. To provide a platform for simulating rotation manipulation, real-time monitoring of its anatomical position and displacement, in order to study the mechanism of manipulation and to explore the methods to improve the therapeutic effect of manipulation. To explore the characteristics of stress and displacement distribution of normal cervical vertebrae, endplate and posterior structure in order to analyze the mechanism of manipulation. Safety and reasonableness. Methods 46 subjects were operated with rotation manipulation in the cervical vertebra sitting position, and the pressure sensor system was used. To detect and record the maximum pushing force of the fourth cervical spine process of the subjects with thumb pushing when the click sound occurred, the cervical vertebrae specimens of a young male cadaver were scanned by axial tomography using spiral CTs at the interval of 1mm. The CT image of cervical vertebrae was input into computer, the contour data matrix was extracted by Matlab 6.0, and then converted into dat document, and then input into ANSYS8.0 modeling. 3) Analysis: loading boundary condition in Ansys 8.0 system, calculating and analyzing normal cervical vertebrae when manipulative action was done. The process of changes in endplate and posterior structure, displacements and internal stresses of the intervertebral disc. The size of stress and displacement of each structure of the cervical vertebrae was calculated, indicating the distribution of internal stresses and displacements of the cervical vertebrae.) the model of bony entity other than atlantoaxial vertebrae was removed from the model. It is helpful to observe and judge the relative position of atlantoaxial rotation directly. Point A at the vertex of the spinous process of the axis, point B of the vertical axis of the odontoid process) and the midpoint of the line between the two.
【学位授予单位】：第一军医大学
【学位级别】：硕士
【学位授予年份】：2006
【分类号】：R322;R274;R319

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