Axial rotation of the lumbar vertebrae occurs around a longitudinal axis that passes through the posterior third of the vertebral bodies and intervertebral discs.
腰椎以一个穿越椎体和椎间盘后三分之一的纵轴为轴进行旋转。
Result the parameters of posterior arch, lateral mass, vertebral artery groove, axis length of screw pass via posterior arch and lateral mass, projection and direction of screw were measured.
结果测量出寰椎后弓、侧块、椎动脉沟、后弓侧块螺钉通道的轴线长度，及后弓进钉点和进钉方向等参数。
Objective: To study the clinical significance of axis transverse foramen in the etiology of the vertebral artery insufficiency after cervical rotational movement.
目的：探讨枢椎横突孔结构在转头引起寰枢段椎动脉狭窄或闭塞的临床解剖学意义。
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