旋转手法对椎管内结构和容积影响的研究

The clinical Anatomical Observation on Changes in Structures of Vertebral Canal During Rotation of Neck

目的：探讨旋转手法对颈椎管内解剖结构和容积变化的影响。方法：在新鲜尸体的颈椎上，采用液体石蜡灌注和直接观察。结果：颈椎前屈旋转时，Ｃ２，３和Ｃ６，７节段的椎管截面积和矢状径较过伸旋转时明显增大；前屈旋转和过伸旋转对Ｃ５及Ｃ６神经根产生明显的牵拉。结论：颈部推拿时适当地前屈旋转较为安全。

Objective:In order to study on the changes in structures and cast form of vertebral canal during rotatory manipulations.Methods:The changes in anatomical structures of intervertebral canal were observed during experimental rotation of cervical spine on the 8 fresh specimens and the sagittal diameter and cross section were measured by pouring liquid wax into the canal.Results:The cross section and sagittal diameter of C2,3 and C6,7 were larger and liganentum flavum was difficult to form fold in the flexion-rotation posture than in the extension-rotation,Spinal roots of C5 and C6 were stretched obviously during the rotations.Conclusions:It is useful to the safe of cervical spinal rotatory manipulations in adequate flexion-rotation