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Intraoperative Use of Somatosensory-Evoked Potential in Monitoring Nerve Roots

Tsai, Shang-Wen*; Tsai, Ching-Lin; Wu, Po-Ting; Wu, Cheng-Yi§; Liu, Chien-Lin*; Jou, I-Ming

Journal of Clinical Neurophysiology: April 2012 - Volume 29 - Issue 2 - p 110–117
doi: 10.1097/WNP.0b013e31824cecd3
Invited Review

Summary Different intraoperative neuromonitoring modalities (mixed-nerve somatosensory-evoked potential [M-SSEP], dermatomal somatosensory-evoked potential [D-SSEP], compound motor-evoked potential [CMEP], electromyography [EMG], and the Hoffmann reflex [H-reflex]) have been developed for early detection of nerve root injury, for timely revision, and for damage reduction. In this study, we discuss the advantages and disadvantages of M-SSEP and D-SSEP by reviewing experimental evidence from animal models and clinical practice.

*Department of Orthopedics, Taipei Veterans General Hospital, Taipei, Taiwan

Department of Marine Resources, National Sun Yat-Sen University, Kaohsiung, Taiwan

Department of Orthopedics, National Cheng Kung University Hospital, and the Institute of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan

§Department of Orthopedics, Chia-Yi Christian Hospital, Chia-Yi, Taiwan

Department of Orthopedics, College of Medicine, National Cheng Kung University, Tainan, Taiwan.

Address correspondence and reprint requests to I-Ming Jou, MD, PhD, Department of Orthopedics, College of Medicine, National Cheng Kung University, Tainan, Taiwan. e-mail: jming@mail.ncku.edu.tw

Copyright © 2012 American Clinical Neurophysiology Society