颈椎侧弯对颈椎间孔形态的影响

Morphologic changes of the cervical intervertebral foramen due to lateral bending

目的:分析侧弯对颈椎间孔形态的影响,并探讨其对临床工作的指导意义。方法:对10名健康志愿者分别于颈椎中立位及侧弯位利用多层螺旋CT进行自C3椎体上缘至C7椎体下缘的横断面扫描,并在C3/4、C4/5、C5/6、C6/7椎间孔斜45°的重建图像上测量椎间孔的上下径、上前后径、下前后径及截面面积,比较侧弯时颈椎间孔形态的变化。结果:侧弯时侧弯侧颈椎间孔截面面积因孔的上下径、上前后径及下前后径的减小而减小13.07%,对侧因孔的上下径、上前后径及下前后径的增大而增大19.84%,C3/4椎间孔面积变化率与C3/C4间侧弯角度存在相关性。结论:侧弯可影响颈椎间孔的形态,且相互间存在有一定的相关性。此结果对颈椎病,尤其是神经根型颈椎病的预防、诊断和治疗有临床指导意义。

Objective:To examine the morphological changes of the cervical intervertebral foramen during lateral bending of cervical spine and explore its clinical significance.Method:There were10healthy volunteers(5male,5female)imaged transectionally by multislice spiral computed tomography.The foraminal height,width(both superior and inferior),and cross-sectional area were measured on the45degree oblique reconstructions of C3/4?C4/5?C5/6and C6/7intervertebral foramens.The statistic analyses was performed to examine the morphological changes in the cervical intervertebral foramen.Result:On the bending side,the foraminal cross-sectional area was decreased.On the other side of bending,the foraminal cross-sectional area was increased.The statistical significance was found in the relationship of the C3/4intervertebral foramen cross-sectional area variational rate with the bending degree between C3and C4.Conclusion:Morphologic changes are found in the cervical intervertebral foramen due to lateral bending.The results of the test have the clinical significance on the prevention,diagnosis and therapy of the cervical degenerate diseases,especially of the radiculopathy.