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本文对国人31例椎动脉颅外段的走行、弯曲、口径、长度进行了观察与测量:(1)因钩椎关节肥大压迫,椎动脉第二部有6.5％在相应部位出现弯曲;(2)椎动脉第三部有六个弯曲,第一和第二弯曲变化最为显著;(3)大多数椎动脉的口径左侧大于右侧,个别椎动脉的口径在两侧之间有显著差异;(4)椎动脉颅外段长度均值:左侧,192.41mm;右侧,189.67mm。另外,本文还分析讨论了有关椎动脉分部与颈椎病机理等问题。
In this paper, we observed and measured the movement, curvature, caliber and length of the extracranial segments of 31 vertebral arteries in Chinese: (1) 6.5% of the second vertebral artery flexed in the corresponding part due to hypertrophic compression of the lumbar vertebral arteries; (2) ) The third part of vertebral artery has six curves, the first and second bending changes the most significant; (3) Most of the diameter of the vertebral artery is larger than the right side of the left, the diameter of individual vertebral artery between the two sides were significantly different; (4) Mean length of extracranial segment of vertebral artery: left, 192.41mm; right, 189.67mm. In addition, this article also analyzed and discussed on the vertebral artery and cervical spondylosis and other issues.