Study design . intraoperatie neurophysiologic monitoring with transcranial electric motor - eoked potentials was performed on patients who underwent cerical laminoplasty at a uniersity hospital in a prospectie study 研究设计:在一所大学医院对施行颈椎板成形术的患者术中应用经颅电刺激运动诱发电位进行神经生理监测的一项前瞻性研究。