Annals of Rehabilitation Medicine

"Dong Chan Yang"

Original Article

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

Citations to this article as recorded by

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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Case Report

Diagnosis of Groin Pain Associated With Sports Hernia Using Dynamic Ultrasound and Physical Examination: A Case Report: Dong Chan Yang, Ki Yeun Nam, Bum Sun Kwon, Jin Woo Park, Ki Hyung Ryu, Ho Jun Lee, Gyu Jeong Sim; Ann Rehabil Med 2015;39(6):1038-1041. Published online December 29, 2015; DOI: https://doi.org/10.5535/arm.2015.39.6.1038

Abstract
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Groin pain in athletes is a complex diagnostic and therapeutic challenge. Sports hernia is one of the common causes of groin pain. We report a case of sports hernia, initially presented as groin pain and aggravated by sports activity. A 19-year-old soccer player visited the outpatient department of general surgery and was referred to the rehabilitation center due to no abnormalities detected in the abdomen and pelvis by computed tomography. An incipient direct bulge of the posterior inguinal wall was detected with dynamic ultrasound when abdominal tension was induced by raising both legs during a full inhalation. Surgery was performed and preoperatively both groins showed the presence of inguinal hernia. Diagnosing sports hernia is very challenging. Through careful history documentation and physical examination followed by dynamic ultrasonography, we identified his posterior inguinal wall deficiency for early management.

Citations

Citations to this article as recorded by

Prevalence of groin pain in unicycle athletes: A nationwide questionnaire survey
Daigo Kobayashi, Naomi Kobayashi, Takayuki Oishi, Hyonmin Choe, Taro Tezuka, Shota Higashihira, Yutaka Inaba
Journal of Orthopaedic Surgery.2020;[Epub] CrossRef