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目的 利用电生理检测技术，评价脊髓栓系综合征（ＴＣＳ） 患儿神经功能改变。方法 对ＴＣＳ患儿组及对照组行胫后神经体感诱发电位（ＰＴＮ－ ＳＥＰ） 、胫后神经及腓总神经运动神经传导速度（ ＭＣＶ） 检测。结果 ＴＣＳ患儿组ＰＴＮ－ ＳＥＰ检测出现皮层电位潜伏期延长，波幅下降甚至消失，部分马尾电位波幅消失；ＭＣＶ 轻、中度减慢，动作电位波幅下降，甚至出现传导阻滞，病变随病情而加重。结论 ＳＥＰ、ＭＣＶ 检测对判断ＴＣＳ神经损害程度及部位，估计预后，具有重要意义。
Objective To evaluate the neurological changes in children with tethered cord syndrome (TCS) using electrophysiological detection. Methods The posterior tibial nerve somatosensory evoked potential (PTN-SEP), the posterior tibial nerve and the common motor nerve conduction velocity (MCV) were detected in children with TCS and control group. Results In PTZ-SEP group, the latent period of cortical potential was prolonged, the amplitude decreased or even disappeared, the amplitude of some cauda equina disappeared; the MCV was mild and moderate, the amplitude of action potential was decreased, and even the conduction block was aggravated . Conclusion The detection of SEP and MCV is of great significance in judging the degree and location of TCS nerve injury and prognosis.