Diagnostic value of different electrophysiologic tests in cervical disk prolapse.
We evaluated 24 patients with radiologically verified cervical disk prolapse. EMG abnormalities appeared in 67% of cases studied; dermatomal somatosensory evoked potentials revealed 85% abnormal findings on the affected side, but also revealed abnormalities in adjacent segments. In 38%, F responses were abnormal. We found electrodiagnostic abnormalities at levels without a disk prolapse, probably due to degenerative spondylopathic changes and beginning consecutive vascular compromise.
Leblhuber
F
F
Department of Neurophysiology, Wagner-Jauregg-Krankenhaus, Linz, Austria.
Reisecker
F
F
Boehm-Jurkovic
H
H
Witzmann
A
A
Deisenhammer
E
E
D000328:Adult; D002574:Cervical Vertebrae; D004558:Electric Stimulation; D004568:Electrodiagnosis; D004576:Electromyography; D005073:Evoked Potentials, Somatosensory; D005260:Female; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008297:Male; D008475:Median Nerve / Q000503:physiopathology; D008875:Middle Aged; D011930:Reaction Time; D014057:Tomography, X-Ray Computed