Document Detail

Predictability of adequacy of spinal root decompression using evoked potentials.
MedLine Citation:
PMID:  1664544     Owner:  NLM     Status:  MEDLINE    
Dermatomal evoked potentials are being used to obtain accurate information concerning the viability of specific nerve root pathways and the quality and extent of nerve root decompression. Twelve patients with quantifiable weakness were selected and tested before, during, and after surgery. Nine patients showed dramatic intraoperative electrical improvement, including decreased latencies and/or increased amplitudes; all had postoperative relief of pain and motor return. Three patients showed variable intraoperative electrical responses with complete pain relief but no motor improvement. No patients had false-negative findings. Intraoperative monitoring of dermatomal evoked potentials appears to be of value in predicting the quality of spinal decompression. Similar monitoring of somatosensory evoked potentials alone cannot provide the specificity for individual root levels that is available by monitoring individual dermatomes.
B A Cohen; M R Major; B A Huizenga
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Spine     Volume:  16     ISSN:  0362-2436     ISO Abbreviation:  Spine     Publication Date:  1991 Aug 
Date Detail:
Created Date:  1992-03-17     Completed Date:  1992-03-17     Revised Date:  2009-07-09    
Medline Journal Info:
Nlm Unique ID:  7610646     Medline TA:  Spine (Phila Pa 1976)     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  S379-84     Citation Subset:  IM; S    
Department of Orthopaedic Surgery, St. Michael's Hospital, Milwaukee, Wisconsin.
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MeSH Terms
Evoked Potentials, Somatosensory*
Middle Aged
Pain / physiopathology,  surgery
Peripheral Nervous System Diseases / physiopathology,  surgery
Spinal Nerve Roots / surgery*

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