| Home | E-Submission | Sitemap | Editorial Office |  
Journal of Korean Neurosurgical Society 2011;50(3): 201-204.
doi: https://doi.org/10.3340/jkns.2011.50.3.201
Changes in the Cross-Sectional Area of Multifidus and Psoas in Unilateral Sciatica Caused by Lumbar Disc Herniation.
Wook Ha Kim, Sang Ho Lee, Dong Yeob Lee
Department of Neurosurgery, Wooridul Spine Hospital, Seoul, Korea. nsdrlee@naver.com
To quantitatively evaluate the asymmetry of the multifidus and psoas muscles in unilateral sciatica caused by lumbar disc herniation using magnetic resonance imaging (MRI).
Seventy-six patients who underwent open microdiscectomy for unilateral L5 radiculopathy caused by disc herniation at the L4-5 level were enrolled, of which 39 patients (51.3%) had a symptom duration of 1 month or less (group A), and 37 (48.7%) had a symptom duration of 3 months or more (group B). The cross-sectional areas (CSAs) of the multifidus and psoas muscles were measured at the mid-portion of the L4-5 disc level on axial MRI, and compared between the diseased and normal sides in each group.
The mean symptom duration was 0.6+/-0.4 months and 5.4+/-2.7 months for groups A and B, respectively (p<0.001). There were no differences in the demographics between the 2 groups. There was a significant difference in the CSA of the multifidus muscle between the diseased and normal sides (p<0.01) in group B. In contrast, no significant multifidus muscle asymmetry was found in group A. The CSA of the psoas muscle was not affected by disc herniation in either group.
The CSA of the multifidus muscle was reduced by lumbar disc herniation when symptom duration was 3 months or more.
Key Words: Multifidus; Psoas; Cross-sectional area; Lumbar disc herniation
Editorial Office
1F, 18, Heolleung-ro 569-gil, Gangnam-gu, Seoul, Republic of Korea
TEL: +82-2-525-7552   FAX: +82-2-525-7554   E-mail: kns61@neurosurgery.or.kr
About |  Browse Articles |  Current Issue |  For Authors and Reviewers
Copyright © Korean Neurosurgical Society.                 Developed in M2PI
Close layer