Annals of Rehabilitation Medicine

"Kiyeun Nam"

Original Articles

Association Between Latency of Dermatomal Sensory-Evoked Potentials and Quantitative Radiologic Findings of Narrowing in Lumbar Spinal Stenosis: Dong Chan Yang, Ho Jun Lee, Jin-Woo Park, Kiyeun Nam, Shengshu Kim, Keun-Tae Cho, Bum Sun Kwon; Ann Rehabil Med 2020;44(5):353-361. Published online September 28, 2020; DOI: https://doi.org/10.5535/arm.19164

Abstract
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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 <10 mm) and relative (APD <13 mm) stenosis.
Results
The radiologic severities of lumbar stenosis were not significantly different between the normal and abnormal latency groups. In absolute and relative stenosis, latency showed a significant negative correlation with APD (r=-0.539, r=-0.426) and LID (r=-0.459, r=-0.494). In patients with relative stenosis, a weak significant positive correlation was found between latency and CSA-NF (r=0.371, p=0.048). LID was the only significant factor for latency (β=-0.930, p=0.011).
Conclusion
The normal and abnormal DSEP groups showed no significant differences inradiologic severity. The latency of DSEP had a negative correlation with the severity of central stenosis, and LID was an influencing factor.

Citations

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Dermatomal somatosensory evoked potentials and cortical somatosensory evoked potentials assessment in congenital scoliosis
Zhenxing Zhang, Yi Wang, Tao Luo, Huaguang Qi, Lin Cai, Yang Yuan, Jingfeng Li
BMC Neurology.2022;[Epub] CrossRef

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Effect of Whole Body Horizontal Vibration Exercise in Chronic Low Back Pain Patients: Vertical Versus Horizontal Vibration Exercise: Heejae Kim, Bum Sun Kwon, Jin-Woo Park, Hojun Lee, Kiyeun Nam, Taejune Park, Yongjin Cho, Taeyeon Kim; Ann Rehabil Med 2018;42(6):804-813. Published online December 28, 2018; DOI: https://doi.org/10.5535/arm.2018.42.6.804

Abstract
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Objective
To elucidate the effect of a 12-week horizontal vibration exercise (HVE) in chronic low back pain (CLBP) patients as compared to vertical vibration exercise (VVE).
Methods
Twenty-eight CLBP patients were randomly assigned to either the HVE or VVE group. All participants performed the exercise for 30 minutes each day, three times a week, for a total of 12 weeks. Altered pain and functional ability were evaluated using the visual analog scale (VAS) and Oswestry Disability Index (ODI), respectively. Changes in lumbar muscle strength, transverse abdominis (TrA) and multifidus muscle thicknesses, and standing balance were measured using an isokinetic dynamometer, ultrasonography, and balance parameters, respectively. These assessments were evaluated prior to treatment, 6 weeks and 12 weeks after the first treatment, and 4 weeks after the end of treatment (that is, 16 weeks after the first treatment).
Results
According to the repeated-measures analysis of variance, there were significant improvements with time on VAS, ODI, standing balance score, lumbar flexor, and extensor muscle strength (all p<0.001 in both groups) without any significant changes in TrA (p=0.153 in HVE, p=0.561 in VVE group) or multifidus (p=0.737 in HVE, p=0.380 in VVE group) muscle thickness. Further, there were no significant differences between groups according to time in any of the assessments. No adverse events were noticed during treatment in either group.
Conclusion
HVE is as effective as VVE in reducing pain, strengthening the lumbar muscle, and improving the balance and functional abilities of CLBP patients. Vibrational exercise increases muscle strength without inducing muscle hypertrophy.

Citations

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Effects of whole-body vibration therapy on pain, functionality, postural stability, and proprioception in patients with subacute and chronic non-specific low back pain: a systematic review
Franziska Remer, Mohammad Keilani, Philipp Kull, Richard Crevenna
Wiener Medizinische Wochenschrift.2025; 175(1-2): 20. CrossRef
Are changes in pain intensity related to changes in balance control in individuals with chronic non-specific low back pain? A systematic review and meta-analysis
Daniel K.Y. Zheng, Jae Q.J. Liu, Jeremy R. Chang, Jeffrey C.Y. Ng, Zhixing Zhou, Jinlong Wu, Chelsia K.C. Cheung, Frank F. Huang, Sabina M. Pinto, Dino Samartzis, Manuela L. Ferreira, Kanchana Ekanayake, Stephen Lord, Xueqiang Wang, Arnold Y.L. Wong
Journal of Sport and Health Science.2025; 14: 100989. CrossRef
Reporting and incorporation of social risks in low back pain and exercise studies: A scoping review
Andrew Bernstetter, Nicole H. Brown, Brandon Fredhoff, Daniel I. Rhon, Chad Cook
Musculoskeletal Science and Practice.2025; 77: 103310. CrossRef
The effects of exercise therapy on lumbar muscle structure in low back pain: A systematic review and meta-analysis
Vasiliki Karagiannopoulou, Hannes Meirezonne, Indra De Greef, Jessica Van Oosterwijck, Thomas Matheve, Lieven Danneels, Tine Marieke Willems
Annals of Physical and Rehabilitation Medicine.2025; 68(5): 101988. CrossRef
Effect of Whole-Body Vibration Exercise on Pain, Disability, Balance, Proprioception, Functional Performance and Quality of Life in People with Non-Specific Chronic Low Back Pain: A Systematic Review and Meta-Analysis
Tasneem Zafar, Saima Zaki, Md Farhan Alam, Saurabh Sharma, Reem Abdullah Babkair, Shibili Nuhmani, Sujata Pandita
Journal of Clinical Medicine.2024; 13(6): 1639. CrossRef
Effects of 12 weeks of inspiratory muscle training and whole body vibration on the inflammatory profile, BDNF and muscular system in pre-frail elderly women: A randomized controlled trial
Helga Cecília Muniz de Souza, Maíra Florentino Pessoa, Rafaela dos Santos Clemente, Alanna Vasconcelos da Silva, Pablo Ramon Gualberto Cardoso, Juliana Fernandes, Arméle Dornelas de Andrade
Archives of Gerontology and Geriatrics.2024; 123: 105421. CrossRef
Effect of Whole-Body Vibration on Balance or Proprioception in Nonspecific Chronic Low Back Pain: A Systematic Review
Nuaima Tariq, Zainy Khan, Zubia Veqar
Journal of Chiropractic Medicine.2023; 22(4): 284. CrossRef
Effect of platelet-rich plasma injections for chronic nonspecific low back pain
Sun Jae Won, Da-ye Kim, Jae Min Kim
Medicine.2022; 101(8): e28935. CrossRef
Whole-body vibration provides additional benefits to patients with patellofemoral pain: A protocol for systematic review and meta analysis of randomized controlled trials
Xinyue Yang, Guang Yang, Yunxia Zuo
Medicine.2022; 101(47): e31536. CrossRef
Core and Whole Body Vibration Exercise Influences Muscle Sensitivity and Posture during a Military Foot March
Kaitlin D. Lyons, Aaron G. Parks, Oluwagbemiga Dadematthews, Nilophar Zandieh, Paige McHenry, Kenneth E. Games, Michael D. Goodlett, William Murrah, Jaimie Roper, JoEllen M. Sefton
International Journal of Environmental Research and Public Health.2021; 18(9): 4966. CrossRef
Exercise therapy for chronic low back pain
Jill A Hayden, Jenna Ellis, Rachel Ogilvie, Antti Malmivaara, Maurits W van Tulder
Cochrane Database of Systematic Reviews.2021;[Epub] CrossRef
Inconsistent descriptions of lumbar multifidus morphology: A scoping review
Anke Hofste, Remko Soer, Hermie J. Hermens, Heiko Wagner, Frits G. J. Oosterveld, André P. Wolff, Gerbrand J. Groen
BMC Musculoskeletal Disorders.2020;[Epub] CrossRef
Effects of exercise combined with whole body vibration in patients with patellofemoral pain syndrome: a randomised-controlled clinical trial
Angel Yañez-Álvarez, Beatriz Bermúdez-Pulgarín, Sergio Hernández-Sánchez, Manuel Albornoz-Cabello
BMC Musculoskeletal Disorders.2020;[Epub] CrossRef
The Effectiveness of Trunk Stabilization Exercise Combined with Vibration for Adolescent Patients with Nonspecific Low Back Pain
Kyoung-sim Jung, Jin-hwa Jung, Tae-sung In, Hwi-young Cho
International Journal of Environmental Research and Public Health.2020; 17(19): 7024. CrossRef
Acute and Cumulative Effects With Whole-Body Vibration Exercises Using 2 Biomechanical Conditions on the Flexibility and Rating of Perceived Exertion in Individuals With Metabolic Syndrome: A Randomized Clinical Trial Pilot Study
P. C. Paiva, C. A. Figueiredo, A. Reis-Silva, A. Francisca-Santos, L. L. Paineiras-Domingos, E. Martins-Anjos, M. E. S. Melo-Oliveira, G. M. G. Lourenço-Revelles, E. Moreira-Marconi, E. O. Guedes-Aguiar, A. A. Brandão, M. F. T. Neves, V. L. Xavier, D. L.
Dose-Response.2019;[Epub] CrossRef

10,219 View
203 Download
16 Web of Science
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Case Reports

Posterior Epidural Migration of a Lumbar Intervertebral Disc Fragment Resembling a Spinal Tumor: A Case Report: Hyojun Kim, Bum Sun Kwon, Jin-Woo Park, Ho Jun Lee, Jung Whan Lee, Eun Kyoung Lee, Tae June Park, Hee Jae Kim, Yongjin Cho, Taeyeon Kim, Kiyeun Nam; Ann Rehabil Med 2018;42(4):621-625. Published online August 31, 2018; DOI: https://doi.org/10.5535/arm.2018.42.4.621

Abstract
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Posterior epidural migration of a lumbar intervertebral disc fragment (PEMLIF) is uncommon because of anatomical barriers. It is difficult to diagnose PEMLIF definitively because of its relatively rare incidence and the ambiguity of radiological findings resembling spinal tumors. This case report describes a 76-year-old man with sudden-onset weakness and pain in both legs. Electromyography revealed bilateral lumbosacral polyradiculopathy with a mass-like lesion in L2-3 dorsal epidural space on lumbosacral magnetic resonance imaging (MRI). The lesion showed peripheral rim enhancement on T1-weighted MRI with gadolinium administration. The patient underwent decompressive L2-3 central laminectomy, to remove the mass-like lesion. The excised lesion was confirmed as an intervertebral disc. The possibility of PEMLIF should be considered when rim enhancement is observed in the epidural space on MRI scans and electrodiagnostic features of polyradiculopathy with sudden symptoms of cauda equina syndrome.

Citations

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Posterior epidural migration of thoracic and lumbar disc material: a comprehensive 63-year systematic review with anatomical perspectives
Shafi Hamid, Madison Kropuenske, Salma Zahran, Ehsan Alimohammadi
Neurosurgical Review.2025;[Epub] CrossRef
Posterior epidural migration of herniated disc: A case series and literature review
Maria Ilaria Borruto, Andrea Perna, Domenico Alessandro Santagada, Calogero Velluto, Maurizio Genitiempo, Francesco Ciro Tamburrelli, Luca Proietti
Journal of Neurosciences in Rural Practice.2025; 16: 1. CrossRef
Sequestered Lumbar Disc Mimicking Psoas Abscess: A Case Report
Shu Suzuki, Kazuya Okita, Kazuki Abe, Mizuka Suzuki, Yasunobu Takaki
Cureus.2025;[Epub] CrossRef
Gadolinium-Enhanced 3-Dimensional MRI for Diagnosis and Surgical Planning of Posterior Epidural Migration of Lumbar Disc Fragment
Yoshinao Koike, Tomomichi Kajino, Shinya Dobashi, Norimasa Iwasaki
JBJS Case Connector.2024;[Epub] CrossRef
Posterior and anterior epidural and intradural migration of the sequestered intervertebral disc: Three cases and review of the literature
Daphne J. Theodorou, Stavroula J. Theodorou, Yousuke Kakitsubata, Evangelos I. Papanastasiou, Ioannis D. Gelalis
The Journal of Spinal Cord Medicine.2022; 45(2): 305. CrossRef
Posterior epidural intervertebral disc migration and sequestration: A systematic review
Paolo Palmisciano, Kishore Balasubramanian, Gianluca Scalia, Navraj S. Sagoo, Ali S. Haider, Othman Bin Alamer, Vishal Chavda, Bipin Chaurasia, Harsh Deora, Maurizio Passanisi, Valerio Da Ros, Giuseppe R. Giammalva, Rosario Maugeri, Domenico G. Iacopino,
Journal of Clinical Neuroscience.2022; 98: 115. CrossRef
A Review of the Diagnostic Features of Posteriorly Migrated Lumbar Discs with Reports of Two Cases
Ajaya Kumar Ayyappan Unnithan
Neurology India.2022; 70(3): 1213. CrossRef
Sequestrated Lumbar Disc Herniation Mimicking Spinal Neoplasm
Faisal Konbaz, Sami I Aleissa, Fahad Al Helal, Majed Abaalkhail, Waleed Alrogy, Abrar Bin Dohaim, Nasser Albishi
Cureus.2021;[Epub] CrossRef
Posterior epidural sequestrated disc presenting with contralateral radiculopathy: a very rare case
Withawin Kesornsak, Kanthika Wasinpongwanich, Verapan Kuansongtham
Spinal Cord Series and Cases.2021;[Epub] CrossRef
Dorsal migration of lumbar disc fragments causing cauda equina syndromes: A three case series and literature review
Shawn Singh Rai, Carlos Rodrigo Goulart, Sepehr Lalezari, Michael Anthony Galgano, Satish Krishnamurthy
Surgical Neurology International.2020; 11: 175. CrossRef
Posterior epidural migration of herniated lumbar disc fragment: a literature review
Alaa Eldin Elsharkawy, Anne Hagemann, Peter Douglas Klassen
Neurosurgical Review.2019; 42(4): 811. CrossRef

6,822 View
90 Download
9 Web of Science
11 Crossref

Neuromyelitis Optica Masquerading as Lumbosacral Radiculopathy: A Case Report: Seungyeon Kim, Bumsun Kwon, Jinwoo Park, Hojun Lee, Hyojun Kim, Dayun Park, Kiyeun Nam; Ann Rehabil Med 2016;40(5):943-948. Published online October 31, 2016; DOI: https://doi.org/10.5535/arm.2016.40.5.943

Abstract
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Neuromyelitis optica spectrum disorders (NMOSD) is a demyelinating syndrome of the central nervous system. This case report describes a 31-year-old woman whose electromyography revealed radiculopathy in the left L5-S1 spinal segment without anatomical abnormalities on lumbosacral magnetic resonance imaging (MRI). She was diagnosed with NMOSD based on gadolinium contrast whole spine and brain MRI and anti-aquaporin-4 antibody findings. Her peripheral nervous system might have been damaged during the early course of NMOSD. Therefore, it is necessary to consider NMOSD for patients who have radiculopathy in electromyography if lumbosacral MRI shows no abnormalities.

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Specific electromyography characteristics can distinguish longitudinally extensive transverse myelitis from congestive myelopathy due to spinal dural arteriovenous fistula: a retrospective study
Jiao Zhao, Ye Lin, Shiyang Xu, Minghui Lu, Dehui Huang, Weiping Guan
British Journal of Hospital Medicine.2024; 85(6): 1. CrossRef
Update on the diagnosis and treatment of neuromyelits optica spectrum disorders (NMOSD) – revised recommendations of the Neuromyelitis Optica Study Group (NEMOS). Part I: Diagnosis and differential diagnosis
Sven Jarius, Orhan Aktas, Ilya Ayzenberg, Judith Bellmann-Strobl, Achim Berthele, Katrin Giglhuber, Vivien Häußler, Joachim Havla, Kerstin Hellwig, Martin W. Hümmert, Ingo Kleiter, Luisa Klotz, Markus Krumbholz, Tania Kümpfel, Friedemann Paul, Marius Ring
Journal of Neurology.2023; 270(7): 3341. CrossRef
Autoimmune diseases associated with Neuromyelitis Optica Spectrum Disorders: A literature review
Sareh Shahmohammadi, Rozita Doosti, Abootorab Shahmohammadi, Seyed Ehsan Mohammadianinejad, Mohammad Ali Sahraian, Amir Reza Azimi, Mohammad Hossein Harirchian, Nasrin Asgari, Abdorreza Naser Moghadasi
Multiple Sclerosis and Related Disorders.2019; 27: 350. CrossRef