Prevalence of lumbar spinal stenosis, using the diagnostic support tool, and correlated factors in Japan: a population-based study

Shoji Yabuki,Yoshihiro Onishi,Koji Otani,Shunichi Fukuhara,Misa Takegami,Norio Fukumori,Takafumi Wakita,Miho Sekiguchi,Shin-Ichi Kikuchi,Shin-Ichi Konno

doi:10.1007/s00776-013-0455-5

Shoji Yabuki, Yoshihiro Onishi + Show 8 more

Open Access

https://doi.org/10.1007/s00776-013-0455-5

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Journal: Journal of Orthopaedic Science	Publication Date: Nov 1, 2013
Citations: 126	License type: cc-by

Affiliation: Fukushima Medical University

Abstract

BackgroundFew studies have examined the prevalence of lumbar spinal stenosis (LSS) in the general population. The purposes of this study were to estimate the prevalence of LSS and to investigate correlated factors for LSS in Japan. MethodsA questionnaire survey was performed on 4,400 subjects selected from residents aged 40–79years in Japan by stratified two-stage random sampling in 2010. The question items consisted of lower-limb symptoms suggestive of LSS, the diagnostic support tool for LSS (LSS-DST), demographic and lifestyle characteristics, comorbidities, the Japanese Perceived Stress Scale (JPSS), and the Mental Health Index 5 (MHI-5). Using the LSS-DST, the presence of LSS was predicted to estimate the prevalence of LSS. Logistic regression analysis was performed to examine the relationship between LSS and correlated factors. ResultsQuestionnaires were obtained from 2,666 subjects (60.6%), consisting of 1,264 males (47.4%). The mean (standard deviation) age was 60.0 (10.9) years. According to the LSS-DST, 153 subjects were regarded as having LSS. The prevalence was estimated to be 5.7%. When standardizing this value with the age distribution of the Japanese population, it was estimated that 3,650,000 Japanese subjects aged 40–79years might have LSS using the LSS-DST. Prevalence increased with age and was particularly high in subjects aged 70–79years, irrespective of gender. As correlated factors, an advanced age (60years or older), diabetes mellitus, urological disorders, and osteoarthritis/fracture as comorbidities, and depressive symptoms, were associated with LSS. ConclusionsThis study elucidated the prevalence of LSS and factors associated with LSS in Japan. This is the first report describing the estimated prevalence of LSS and associated factors using a strictly sampled representative population.

Highlights

Lumbar spinal stenosis (LSS) is defined as a syndrome in which narrowing of the spinal canal and intervertebral foramen, which are nervous routes, related to degeneration of the lumbar intervertebral disks and/or joints, causes specific symptoms of the lumbar region and lower limbs [1,2,3]
Background Few studies have examined the prevalence of lumbar spinal stenosis (LSS) in the general population
The question items consisted of lower-limb symptoms suggestive of LSS, the diagnostic support tool for LSS (LSSDST), demographic and lifestyle characteristics, comorbidities, the Japanese Perceived Stress Scale (JPSS), and the Mental Health Index 5 (MHI-5)

Summary

Introduction

Lumbar spinal stenosis (LSS) is defined as a syndrome in which narrowing of the spinal canal and intervertebral foramen, which are nervous routes, related to degeneration of the lumbar intervertebral disks and/or joints, causes specific symptoms of the lumbar region and lower limbs [1,2,3]. Stenosis of the spinal canal is associated with organic abnormalities, for example spondylolysis and spondylolisthesis in some patients, aging-related degeneration of the vertebral bodies and/or intervertebral disks may be etiologically involved in most patients [2]. This disease has been regarded as common in elderly subjects.

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