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Electrodiagnostic examination of lumbosacral radiculopathies.
Electromyogr Clin Neurophysiol. 2000 Jun; 40(4):231-6.EC

Abstract

To determine the diagnostic efficacy of late responses and of magnetic stimulation in the electrodiagnostic evaluation of lumbosacral radiculopathies, 42 patients with acute monoradiculopathies of L5 or S1 were examined. We performed conventional nerve conduction studies, F-wave studies, needle electrode examination (NEE) and magnetic stimulation. The results were compared with a control group of 36 persons. In the patients with weakness, we found a diagnostic sensitivity for NEE of 90% in L5 and of 80% in S1. F-waves had the same sensitivity as NEE in the patients with weakness and were more sensitive in the group of patients without weakness (L5 80%, S1 67%). Magnetic stimulation had a sensitivity of 40% in all groups. There were also abnormalities of NEE and of F-wave studies in the patients with abnormal magnetic stimulation. It is concluded that NEE is the single most effective method in acute LSR and that F-wave studies are able to provide complementary information. Magnetically evoked motor nerve root stimulation was not found of clinically relevant diagnostic value.

Authors+Show Affiliations

Dept. of Neurology, Military Hospital Ulm/Donau, Germany.No affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

10907601

Citation

Weber, F, and U Albert. "Electrodiagnostic Examination of Lumbosacral Radiculopathies." Electromyography and Clinical Neurophysiology, vol. 40, no. 4, 2000, pp. 231-6.
Weber F, Albert U. Electrodiagnostic examination of lumbosacral radiculopathies. Electromyogr Clin Neurophysiol. 2000;40(4):231-6.
Weber, F., & Albert, U. (2000). Electrodiagnostic examination of lumbosacral radiculopathies. Electromyography and Clinical Neurophysiology, 40(4), 231-6.
Weber F, Albert U. Electrodiagnostic Examination of Lumbosacral Radiculopathies. Electromyogr Clin Neurophysiol. 2000;40(4):231-6. PubMed PMID: 10907601.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Electrodiagnostic examination of lumbosacral radiculopathies. AU - Weber,F, AU - Albert,U, PY - 2000/7/25/pubmed PY - 2001/2/28/medline PY - 2000/7/25/entrez SP - 231 EP - 6 JF - Electromyography and clinical neurophysiology JO - Electromyogr Clin Neurophysiol VL - 40 IS - 4 N2 - To determine the diagnostic efficacy of late responses and of magnetic stimulation in the electrodiagnostic evaluation of lumbosacral radiculopathies, 42 patients with acute monoradiculopathies of L5 or S1 were examined. We performed conventional nerve conduction studies, F-wave studies, needle electrode examination (NEE) and magnetic stimulation. The results were compared with a control group of 36 persons. In the patients with weakness, we found a diagnostic sensitivity for NEE of 90% in L5 and of 80% in S1. F-waves had the same sensitivity as NEE in the patients with weakness and were more sensitive in the group of patients without weakness (L5 80%, S1 67%). Magnetic stimulation had a sensitivity of 40% in all groups. There were also abnormalities of NEE and of F-wave studies in the patients with abnormal magnetic stimulation. It is concluded that NEE is the single most effective method in acute LSR and that F-wave studies are able to provide complementary information. Magnetically evoked motor nerve root stimulation was not found of clinically relevant diagnostic value. SN - 0301-150X UR - https://www.unboundmedicine.com/medline/citation/10907601/Electrodiagnostic_examination_of_lumbosacral_radiculopathies_ DB - PRIME DP - Unbound Medicine ER -