张海鸿,孙正义,闵坤山.单节段与双节段腰椎管狭窄对马尾神经影响的实验研究[J].中国脊柱脊髓杂志,1999,(3):.
单节段与双节段腰椎管狭窄对马尾神经影响的实验研究
The effects of one-level andtwo-level lumbar spinal stenosis on cauda equina
  
DOI:
中文关键词:  腰椎管狭窄,马尾神经,电生理
英文关键词:Lumbar spinal stenosisCauda equinaElectrophysiology,
基金项目:
张海鸿  孙正义  闵坤山
兰州医学院第二附属医院骨科,第三军医大学野战外科研究所
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中文摘要:
  目的:观察不同的狭窄范围对马尾神经功能的影响。方法:采用家犬制作单、双节段腰椎管狭窄的动物模型。单环扎组在L7椎体水平用尼龙带环扎硬膜囊使其狭窄25%,双环扎组分别在L6、L7水平环扎使其狭窄25%。术后观察运动功能、脊髓诱发电位、球海绵体肌反射及病理变化。结果:单环扎组运动功能未见异常,诱发电位和球海绵体肌反射潜伏期轻微延长,狭窄部有轻度病理改变。双环扎组术后运动功能减弱,诱发电位和球海绵体肌反射潜伏期较单环扎组延长,狭窄部和两个狭窄部之间均出现病理改变。结论:在相同的狭窄程度下双节段比单节段狭窄对马尾神经的影响更为明显。
英文摘要:
  Objective: To study the effects of stenotic range on the function of the cauda equina. Method: Onelevel and twolevel lumbar spinal stenosis model were created in dogs.Onelevel 25% lumbar spinal stenosis was produced by placement of constricti
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