Zhang Ming-Cai, Lu Si-Zhe, Zhan Hong-Sheng, Gu Li-Xu, Shi Yin-Yu, Wang Xiang, Huang Shi-Rong
Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China
Zhongguo Gu Shang. 2010 May;23(5):366-9.
Cervical vertebra semidislocation was one of major pathological aspects of cervical spondylosis, and it was also the target of manipulation to treat cervical spondylosis. The aim of this study was to combine the technology of three dimensional finite element analysis to investigate the method to construct the cervical vertebra semidislocation model.
A cervical spondylosis patient (male, 28 years old,176 cm tall, weight 69 kg) was randomly chosen, who was diagnosed cervical vertebra semidislocation by dynamic and static palpation and X-ray,and CT scanned from C1 to C7 by 0.75 mm slice thickness. Based on the CT data, the software was used to construct the three dimensional finite element model of cervical vertebra semidislocation (C4-C6).
The model showed the three dimensional changes of vertebra semidislocation clearly. C5 had a three-dimensional abnormal position, which was downward translation for 0.9 mm and clockwise rotation for 4.5 degrees around X-axis. So C5 was diagnosed as hypokinesis-type semidislocation.
The method to construct the three dimensional finite element model of cervical vertebra semidislocation is reliable, which provide a base study to analyse the mechanism of manipulation to treat vertebra semidislocation.
颈椎半脱位是颈椎病的主要病理表现之一，也是颈椎病手法治疗的靶点。本研究旨在结合三维有限元分析技术，探讨构建颈椎半脱位模型的方法。
随机选取1例颈椎病患者（男，28岁，身高176 cm，体重69 kg），经动静触诊及X线检查诊断为颈椎半脱位，行颈椎CT扫描（C1~C7），层厚0.75 mm。基于CT数据，运用软件构建颈椎半脱位（C4-C6）三维有限元模型。
模型清晰显示了椎体半脱位的三维变化。C5存在三维位置异常，向下移位0.9 mm，绕X轴顺时针旋转4.5°，诊断为动力型半脱位。
构建颈椎半脱位三维有限元模型的方法可靠，为分析手法治疗椎体半脱位的机制提供了基础研究。
