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Pain Research and Treatment
Volume 2011, Article ID 340629, 5 pages
http://dx.doi.org/10.1155/2011/340629
Clinical Study

Prevalence, Spinal Alignment, and Mobility of Lumbar Spinal Stenosis with or without Chronic Low Back Pain: A Community-Dwelling Study

Department of Orthopedic Surgery, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan

Received 31 January 2011; Accepted 8 March 2011

Academic Editor: Yasuchika Aoki

Copyright © 2011 Naohisa Miyakoshi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Although lumbar spinal stenosis (LSS) occurs almost universally with aging, little is known regarding its actual prevalence and relationships to chronic low back pain (CLBP) in the general population. The presence of CLBP in subjects with LSS may have negative impacts on spinal alignment and mobility. This study evaluated the prevalence of LSS using a self-administered, self-reported history questionnaire in 630 community-dwelling individuals ≥50 years old. Subjects with LSS were further divided into LSS+CLBP and LSS alone groups, and spinal alignment and mobility were compared using a computer-assisted device. Prevalence of LSS was 10.8% in this cohort. Subjects in the LSS+CLBP group ( 𝑛 = 4 6 ) showed a significantly more kyphotic lumbar spinal alignment with limited lumbar extension ( 𝑃 < . 0 5 ), resulting in a stooped trunk compared to subjects in the LSS alone group ( 𝑛 = 2 2 ). However, no significant difference in spinal mobility was seen between groups.