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Lumbar Spinal Stenosis: Diagnostic Value of Cauda Equina Motor Conduction Time at Rest and after Walk | Chapter 11 | New Frontiers in Medicine and Medical Research Vol. 13

Lumbosacral spinal stenosis is a narrowing of the spinal canal that causes nerve compression in the lower back and lower limbs. Intermittent neurogenic claudication is common in symptomatic individuals, and evaluating it objectively using diagnostic methods at rest is difficult.

Conduction measurements in the cauda equine at rest and after walking could be useful in the diagnosis of lumbosacral spinal stenosis.

Our goal was to examine the results of magnetic in electrical stimulation to peripheral motor conduction time. After L1 MS, S1 MS, and L1 ES, M and F waves, as well as compound muscle action potentials, were observed. The compound muscle action potential delay was 26.9 2.6 milliseconds on L1 MS and 25.6 2.2 milliseconds on L1 ES, respectively, while the peripheral motor conduction time was 27.0 2.5 milliseconds (analysis of variance P = 0.0008). On L1 MS, the compound muscle action potential amplitude was 12 11% of the M-wave, 32 18% on S1 MS, and 31 17 percent on L1 ES. Conclusions: Abductor hallucis muscle responses are reliably elicited by dorsal MS. On L1 MS, the latency of compound muscle action potentials is comparable to the latency of peripheral motor conduction. One disadvantage of MS could be insufficient stimulation at the proximal end of the cauda equina.


Author (S) Details

Ana Golez
Department for Medical Rehabilitation, Celje General and Teaching Hospital, Celje, Slovenia.


View Book :- https://stm.bookpi.org/NFMMR-V13/article/view/3547


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