旋转手法中侧屈方向对颈椎间盘位移、内在应力的影响及意义

被引:12
作者
黄学成 [1 ,2 ]
叶林强 [2 ]
江晓兵 [2 ]
王千里 [2 ]
余伟波 [1 ,2 ]
梁德 [2 ]
机构
[1] 广州中医药大学第一临床医学院
[2] 广州中医药大学第一附属医院
关键词
神经根型颈椎病; 旋转手法; 体位; 位移; 应力; 三维有限元分析;
D O I
暂无
中图分类号
R274 [中医骨伤科];
学科分类号
100508 [中医骨伤科学];
摘要
目的利用三维有限元模拟颈椎分别在左、右侧屈位下行旋转手法,探讨该手法在不同方向侧屈体位下对颈椎间盘位移、内在应力的影响及意义。方法对一名25岁健康成年女性志愿者的颈椎进行CT扫描成像,应用Mimics10.01、Geomagic2012、Solidworks2014等软件建立C5/6三维有限元模型,将模型导入Ansys Workbench14.5软件进行有效性验证及手法模拟。分别在颈椎左、右侧屈位下向右旋转,模拟实施旋转手法,将各项力学参数代入三维有限元模型进行计算分析,即时显示旋转手法作用时颈椎间盘的位移和内在应力变化。结果在左、右侧屈位下向右旋转,C5/6三维有限元模型椎间盘左侧后部均出现向前回缩位移,左侧屈位(0.93 mm)小于右侧屈位(1.12 mm);椎间盘内在应力在左侧屈位时集中于旋转侧后部,右侧屈位时集中于旋转对侧后部,其中左侧屈位的最大应力(7.00 MPa)小于右侧屈位(8.19 MPa)。结论颈椎左侧屈位条件下向右旋转时对颈椎间盘位移、内在应力的影响均小于右侧屈位,更有利于保护同侧椎间盘;使用旋转手法治疗神经根型颈椎病时让患者向健侧旋颈时应向患侧侧屈,可在缓解症状的同时降低患侧椎间盘二次损伤的风险。
引用
收藏
页码:5 / 8
页数:4
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