Somatosensory evoked potentials in the evaluation of lumbosacral radiculopathy

David Walk, Morris A. Fisher, Stephen H. Doundoulakis, Masoud Hemmati

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

We performed lower extremity somatosensory evoked potential (SEP) studies in 59 patients with signs or symptoms suggestive of lumbosacral radiculopathy and compared them with results of myelography with postmyelogram CT (myelogram/CT), MRI, and other electrodiagnostic studies. Of 38 patients with abnormal myelogram/CTs, 32 had abnormal SEPs, while 11 demonstrated EMG abnormalities. All 21 patients with normal myelogram/CTs had normal SEPs. SEP improved electrodiagnostic sensitivity in patients with weakness or reflex changes as well as in those with sensory deficits only. SEP was less sensitive in patients in whom spinal stenosis was the only radiographic finding. MRI generally corresponded well with the results of myelogram/CT and SEP but overestimated the significance of disk bulges in some patients. SEP is useful in the electrodiagnostic evaluation of lumbosacral radiculopathy, particularly when EMG is nondiagnostic.

Original languageEnglish (US)
Pages (from-to)1197-1202
Number of pages6
JournalNeurology
Volume42
Issue number6
StatePublished - Jan 1 1992

Fingerprint

Radiculopathy
Somatosensory Evoked Potentials
Myelography
Spinal Stenosis
Signs and Symptoms
Reflex
Lower Extremity

Cite this

Walk, D., Fisher, M. A., Doundoulakis, S. H., & Hemmati, M. (1992). Somatosensory evoked potentials in the evaluation of lumbosacral radiculopathy. Neurology, 42(6), 1197-1202.

Somatosensory evoked potentials in the evaluation of lumbosacral radiculopathy. / Walk, David; Fisher, Morris A.; Doundoulakis, Stephen H.; Hemmati, Masoud.

In: Neurology, Vol. 42, No. 6, 01.01.1992, p. 1197-1202.

Research output: Contribution to journalArticle

Walk, D, Fisher, MA, Doundoulakis, SH & Hemmati, M 1992, 'Somatosensory evoked potentials in the evaluation of lumbosacral radiculopathy', Neurology, vol. 42, no. 6, pp. 1197-1202.
Walk D, Fisher MA, Doundoulakis SH, Hemmati M. Somatosensory evoked potentials in the evaluation of lumbosacral radiculopathy. Neurology. 1992 Jan 1;42(6):1197-1202.
Walk, David ; Fisher, Morris A. ; Doundoulakis, Stephen H. ; Hemmati, Masoud. / Somatosensory evoked potentials in the evaluation of lumbosacral radiculopathy. In: Neurology. 1992 ; Vol. 42, No. 6. pp. 1197-1202.
@article{5a170ae0a70647a7ba3806822a99582c,
title = "Somatosensory evoked potentials in the evaluation of lumbosacral radiculopathy",
abstract = "We performed lower extremity somatosensory evoked potential (SEP) studies in 59 patients with signs or symptoms suggestive of lumbosacral radiculopathy and compared them with results of myelography with postmyelogram CT (myelogram/CT), MRI, and other electrodiagnostic studies. Of 38 patients with abnormal myelogram/CTs, 32 had abnormal SEPs, while 11 demonstrated EMG abnormalities. All 21 patients with normal myelogram/CTs had normal SEPs. SEP improved electrodiagnostic sensitivity in patients with weakness or reflex changes as well as in those with sensory deficits only. SEP was less sensitive in patients in whom spinal stenosis was the only radiographic finding. MRI generally corresponded well with the results of myelogram/CT and SEP but overestimated the significance of disk bulges in some patients. SEP is useful in the electrodiagnostic evaluation of lumbosacral radiculopathy, particularly when EMG is nondiagnostic.",
author = "David Walk and Fisher, {Morris A.} and Doundoulakis, {Stephen H.} and Masoud Hemmati",
year = "1992",
month = "1",
day = "1",
language = "English (US)",
volume = "42",
pages = "1197--1202",
journal = "Neurology",
issn = "0028-3878",
publisher = "Lippincott Williams and Wilkins",
number = "6",

}

TY - JOUR

T1 - Somatosensory evoked potentials in the evaluation of lumbosacral radiculopathy

AU - Walk, David

AU - Fisher, Morris A.

AU - Doundoulakis, Stephen H.

AU - Hemmati, Masoud

PY - 1992/1/1

Y1 - 1992/1/1

N2 - We performed lower extremity somatosensory evoked potential (SEP) studies in 59 patients with signs or symptoms suggestive of lumbosacral radiculopathy and compared them with results of myelography with postmyelogram CT (myelogram/CT), MRI, and other electrodiagnostic studies. Of 38 patients with abnormal myelogram/CTs, 32 had abnormal SEPs, while 11 demonstrated EMG abnormalities. All 21 patients with normal myelogram/CTs had normal SEPs. SEP improved electrodiagnostic sensitivity in patients with weakness or reflex changes as well as in those with sensory deficits only. SEP was less sensitive in patients in whom spinal stenosis was the only radiographic finding. MRI generally corresponded well with the results of myelogram/CT and SEP but overestimated the significance of disk bulges in some patients. SEP is useful in the electrodiagnostic evaluation of lumbosacral radiculopathy, particularly when EMG is nondiagnostic.

AB - We performed lower extremity somatosensory evoked potential (SEP) studies in 59 patients with signs or symptoms suggestive of lumbosacral radiculopathy and compared them with results of myelography with postmyelogram CT (myelogram/CT), MRI, and other electrodiagnostic studies. Of 38 patients with abnormal myelogram/CTs, 32 had abnormal SEPs, while 11 demonstrated EMG abnormalities. All 21 patients with normal myelogram/CTs had normal SEPs. SEP improved electrodiagnostic sensitivity in patients with weakness or reflex changes as well as in those with sensory deficits only. SEP was less sensitive in patients in whom spinal stenosis was the only radiographic finding. MRI generally corresponded well with the results of myelogram/CT and SEP but overestimated the significance of disk bulges in some patients. SEP is useful in the electrodiagnostic evaluation of lumbosacral radiculopathy, particularly when EMG is nondiagnostic.

UR - http://www.scopus.com/inward/record.url?scp=0026729576&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026729576&partnerID=8YFLogxK

M3 - Article

C2 - 1318522

AN - SCOPUS:0026729576

VL - 42

SP - 1197

EP - 1202

JO - Neurology

JF - Neurology

SN - 0028-3878

IS - 6

ER -