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目的 :探讨在脊柱侧凸前入路手术中结扎第 7～ 11肋间后动脉对脊髓血供的影响。方法 :将11例 14～ 5 0岁、无严重心血管疾病和中枢神经系统无损伤的新鲜尸体随机分在A组 (不手术 )、B组和C组 (分别结扎左侧和双侧第 7～ 11肋间后动脉起始部 ) ,全身墨汁福尔马林灌注 ,取T5～L1段脊髓作 2 5 0μm连续冰冻切片 ,镜下观察和拍照 ,并进行测量和统计分析。 结果 :C组标本的节段间血管数及血管密度有显著性差异 ;A组与B组及A组与C组某些节段的血管数或 /和血管密度存在差异。结论 :胸腰段脊髓的血供不存在节段间差异 ,双侧结扎第 7～ 11肋间后动脉起始段对脊髓血供影响较大 ,单侧结扎第 7～ 11肋间后动脉起始段对胸腰段脊髓血供有影响
Objective: To investigate the effect of posterior intercostal artery ligation on the blood supply of spinal cord in the anterior approach to scoliosis. Methods: A total of 11 fresh corpses between 14 and 50 years old with no serious cardiovascular disease and central nervous system injury were randomly divided into group A (no operation), group B and group C ~ 11 intercostal arteries at the beginning of the initial part), whole body ink formalin perfusion, T5 ~ L1 spinal cord taken 250m continuous frozen section, microscopically observed and photographed, and measurement and statistical analysis. Results: There was a significant difference in the number of blood vessels and the density of blood vessels between group C and group C. The numbers of blood vessels and / or blood vessel densities differed in some segments of group A, group B and groups A and C. Conclusion: The blood supply of the thoracolumbar spinal cord does not exist segmental differences between the two sides ligation of the first 11 to 11 after the intercostal artery of the spinal cord blood supply greater impact, unilateral ligation of 7 to 11 after intercostal artery The beginning of the thoracolumbar spinal cord blood supply have an impact