Association Between Latency of Dermatomal Sensory-Evoked Potentials and Quantitative Radiologic Findings of Narrowing in Lumbar Spinal Stenosis

Objective To identify the difference of quantitative radiologic stenosis between a normal latency group and an abnormal latency group, and to investigate the association of dermatomal somatosensory-evoked potential (DSEP) with magnetic resonance imaging (MRI) findings of narrowing in patients with l...

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Bibliographic Details
Published in:Annals of rehabilitation medicine 2020, 44(5), , pp.353-361
Main Authors: Yang, Dong Chan, Lee, Ho Jun, Park, Jin-Woo, Nam, Kiyeun, Kim, Shengshu, Cho, Keun-Tae, Kwon, Bum Sun
Format: Article
Language:English
Subjects:
electrodiagnosis
evoked potentials
magnetic resonance imaging
Original
spinal stenosis
재활의학
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Summary:Objective To identify the difference of quantitative radiologic stenosis between a normal latency group and an abnormal latency group, and to investigate the association of dermatomal somatosensory-evoked potential (DSEP) with magnetic resonance imaging (MRI) findings of narrowing in patients with lumbar spinal stenosis (LSS).Methods We retrospectively reviewed the clinical records and P40 latencies of L5 DSEP of 40 patients with unilateral symptoms of LSS at the L4–5 disc level. Quantitative assessments of stenosis in lumbar spine MRI were performed with measurements of the anteroposterior diameter (APD), cross-sectional area (CSA) of the dural sac, ligamentous interfacet distance (LID), CSA of the neural foramen (CSA-NF), and subarticular zone width. Analyses were conducted through comparisons of radiologic severity between the normal and abnormal latency groups and correlation between radiologic severity of stenosis and latency of DSEP in absolute (APD
ISSN:2234-0645
2234-0653
DOI:10.5535/arm.19164