胸腰段脊髓动脉的解剖学观察

发布时间：2018-10-18 16:35

【摘要】：目的:系统研究胸腰段脊髓动脉的局部解剖关系,明确胸腰段脊髓动脉分布及吻合情况。方法:选用50例脊髓动脉完整无损的成年尸体标本,解剖并观察胸腰段脊髓动脉及其动脉之间的走形分布及吻合情况。结果:胸腰段脊髓动脉主要为脊髓前后正中动脉和Adamkiewicz动脉。脊髓前、后正中动脉与各肋间后动脉、腰动脉发出的脊髓支之间存在吻合,胸、腰段发出的根动脉吻合率左右侧比较差异无统计学意义(P0.05),胸段与腰段比较差异有统计学意义(P0.05),且腰段吻合率高于胸段。Adamkiewicz动脉起源平面最高为第6胸椎,最低第3腰椎,大多起源于左侧第8胸椎～第1腰椎水平。结论:脊髓前、后正中动脉在胸段脊髓起关键作用;Adamkiewicz动脉对腰段脊髓起关键作用。胸腰段脊髓动脉之间存在广泛吻合,第10胸椎～第1腰椎平面是胸腰段脊髓动脉吻合的相对缺乏区。
[Abstract]:Objective: to study the regional anatomical relationship of thoracolumbar spinal artery and to determine the distribution and anastomosis of thoracolumbar spinal artery. Methods: 50 adult cadavers with intact spinal artery were dissected and observed the shape distribution and anastomosis of thoracolumbar spinal artery and its artery. Results: the main arteries of thoracolumbar spinal cord were anterior and posterior spinal artery and Adamkiewicz artery. There was anastomosis between the anterior spinal cord, the posterior median artery and the posterior intercostal artery and the spinal cord branch from the lumbar artery. There was no significant difference between left and right side of root artery anastomosis rate of lumbar segment (P0.05), but there was significant difference between thoracic segment and lumbar segment (P0.05), and the anastomosis rate of lumbar segment was higher than that of thoracic segment. The origin level of Adamkiewicz artery was highest in the 6th thoracic vertebra and the lowest in the third lumbar vertebra. Most originated from the left 8th thoracic vertebrae to the first lumbar vertebrae. Conclusion: the anterior and posterior median arteries play a key role in the thoracic spinal cord and the Adamkiewicz artery plays a key role in the lumbar spinal cord. There is extensive anastomosis between thoracolumbar spinal artery and the 10th thoracic vertebrae to the first lumbar vertebrae is the relative lack of thoracolumbar spinal artery anastomosis.
【学位授予单位】：重庆医科大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：R322.121

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