caa a22 4500 445833009 CHVBK 20180317145321.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s00586-011-1768-8 doi (NATIONALLICENCE)springer-10.1007/s00586-011-1768-8 Somatosensory evoked potential from S1 nerve root stimulation [Elektronische Daten] [Xiao-Dong Wu, Yu Zhu, Wen-Jun Chen, Xiang Jin, Nicholas Tsai, Huang-Yuan Huang, Jian-Yuan Jiang, Dong-Qing Zhu, Pei-Ying Li, Robert Weber, Wen Yuan, Hua-Jiang Chen] The objective of this study was to detect cerebral potentials elicited by proximal stimulation of the first sacral (S1) nerve root at the S1 dorsal foramen and to investigate latency and amplitude of the first cerebral potential. Tibial nerve SEP and S1 nerve root SEP were obtained from 20 healthy subjects and 5 patients with unilateral sciatic nerve or tibial nerve injury. Stimulation of the S1 nerve root was performed by a needle electrode via the S1 dorsal foramen. Cerebral potentials were recorded twice to document reproducibility. Latencies and amplitudes of the first cerebral potentials were recorded. Reproducible cerebral evoked potentials were recorded and P20s were identified in 36 of 40 limbs in the healthy subjects. The mean latency of P20 was 19.8±1.6ms. The mean amplitude of P20-N30 was 1.2±0.9μV. In the five patients, P40 of tibial nerve SEP was absent, while well-defined cerebral potentials of S1 nerve root SEP were recorded and P20 was identified from the involved side. This method may be useful in detecting S1 nerve root lesion and other disorders affecting the proximal portions of somatosensory pathway. Combined with tibial nerve SEP, it may provide useful information for diagnosis of lesions affecting the peripheral nerve versus the central portion of somatosensory pathway. Springer-Verlag, 2011 Somatosensory evoked potentials nationallicence Intra-operative monitoring nationallicence S1 nerve root nationallicence Nerve root stimulation nationallicence Wu Xiao-Dong Department of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, 200003, Shanghai, China aut Zhu Yu Department of Physical Medicine and Rehabilitation, Upstate Medical University, State University of New York at Syracuse, 123202, Syracuse, NY, USA aut Chen Wen-Jun Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China aut Jin Xiang Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China aut Tsai Nicholas Department of Orthopaedics, The Canberra Hospital, Canberra, ACT, Australia aut Huang Huang-Yuan Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China aut Jiang Jian-Yuan Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China aut Zhu Dong-Qing Department of Neurology, Huashan Hospital, Fudan University, Shanghai, China aut Li Pei-Ying Department of Anesthesiology, Huashan Hospital, Fudan University, Shanghai, China aut Weber Robert Department of Physical Medicine and Rehabilitation, Upstate Medical University, State University of New York at Syracuse, 123202, Syracuse, NY, USA aut Yuan Wen Department of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, 200003, Shanghai, China aut Chen Hua-Jiang Department of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, 200003, Shanghai, China aut European Spine Journal Springer-Verlag 20/10(2011-10-01), 1613-1619 0940-6719 20:10<1613 2011 20 586 https://doi.org/10.1007/s00586-011-1768-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00586-011-1768-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wu Xiao-Dong Department of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, 200003, Shanghai, China aut NATIONALLICENCE 700 1- Zhu Yu Department of Physical Medicine and Rehabilitation, Upstate Medical University, State University of New York at Syracuse, 123202, Syracuse, NY, USA aut NATIONALLICENCE 700 1- Chen Wen-Jun Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China aut NATIONALLICENCE 700 1- Jin Xiang Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China aut NATIONALLICENCE 700 1- Tsai Nicholas Department of Orthopaedics, The Canberra Hospital, Canberra, ACT, Australia aut NATIONALLICENCE 700 1- Huang Huang-Yuan Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China aut NATIONALLICENCE 700 1- Jiang Jian-Yuan Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China aut NATIONALLICENCE 700 1- Zhu Dong-Qing Department of Neurology, Huashan Hospital, Fudan University, Shanghai, China aut NATIONALLICENCE 700 1- Li Pei-Ying Department of Anesthesiology, Huashan Hospital, Fudan University, Shanghai, China aut NATIONALLICENCE 700 1- Weber Robert Department of Physical Medicine and Rehabilitation, Upstate Medical University, State University of New York at Syracuse, 123202, Syracuse, NY, USA aut NATIONALLICENCE 700 1- Yuan Wen Department of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, 200003, Shanghai, China aut NATIONALLICENCE 700 1- Chen Hua-Jiang Department of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, 200003, Shanghai, China aut NATIONALLICENCE 773 0- European Spine Journal Springer-Verlag 20/10(2011-10-01), 1613-1619 0940-6719 20:10<1613 2011 20 586 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer