脊髓前动脉损伤后运动诱发电位变化与病理学对照研究

被引：4

作者：

沈康平

叶晓健

贾宁阳

李家顺

贾连顺

宋海涛

刘昀

机构：

[1] 第二军医大学长征医院骨科

[2] 第二军医大学长征医院放射科

[3] 第二军医大学附属长海医院病理科

来源：

中国矫形外科杂志 | 2002年 / 07期

关键词：

脊髓; 缺血; 脊髓前动脉; 运动诱发电位(MEP);

D O I：

暂无

中图分类号：

R654.3 [血管];

学科分类号：

摘要：

目的 :观察脊髓前动脉损伤后运动诱发电位 (MEP)变化规律 ,以及相应的病理演变。方法 :以家犬为实验动物 ,采用颈前路手术入路 ,损伤脊髓前动脉。肉眼、镜下观察脊髓病理演变过程 ,测定脊髓前动脉损伤前、后MEP潜伏期 ,同时按Tarlov法测定肌力。结果 :脊髓前动脉损伤后出现轴索断裂 ,髓鞘呈气球样空泡 ,脊髓水肿、出血 ,运动神经元变性坏死等病理性变化 ,脊髓前动脉损伤后立即出现不完全性肢体瘫痪 ,MEP潜伏期明显延长 ,3d后MEP的潜伏期有所恢复。结论 :MEP对脊髓缺血性损伤后病理变化较敏感 ,MEP能准确地反映脊髓缺血性损伤后运动功能的变化。

引用

页码：59 / 61

页数：3

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