title: Magnetic stimulation in the determination of lumbosacral motor radiculopathy.
abstract: Magnetic stimulation was utilised to diagnose lumbosacral motor radiculopathy non-invasively. Magnetic coil stimulation estimated peripheral motor nerve conduction time (MNCT) which, used in combination with F response, allowed calculation of "motor root conduction time (MRCT)," response being recorded from abductor hallucis. Twenty-five normal controls and 26 patients with lumbar spondylosis were studied. The mean interside difference (left minus right) of MRCT in the control was +0.06 msec (range: -0.88 to +0.74 msec). On clinical and radiological grounds, patients with spondylosis were grouped into those with: (I) no lumbosacral root compression, (II) root compression without motor sign, and (III) root compression with motor deficit. All patients in group III and 36% of cases of group II had MRCT significantly prolonged on the affected side.
authors.affiliation: Wessex Neurological Centre, Southampton University Hospitals, UK.
authors.forename: T K
authors.initials: TK
authors.lastname: Banerjee
authors.forename: M S
authors.initials: MS
authors.lastname: Mostofi
authors.forename: O
authors.initials: O
authors.lastname: Us
authors.forename: V
authors.initials: V
authors.lastname: Weerasinghe
authors.forename: E M
authors.initials: EM
authors.lastname: Sedgwick
mesh_terms: D000328:Adult; D004558:Electric Stimulation; D004576:Electromyography; D005260:Female; D006801:Humans; D008161:Lumbosacral Region; D008280:Magnetics; D008297:Male; D008875:Middle Aged; D009132:Muscles / Q000503:physiopathology; D009408:Nerve Compression Syndromes / Q000503:physiopathology*; D011930:Reaction Time / Q000502:physiology; D013126:Spinal Nerve Roots / Q000503:physiopathology*