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A longitudinal study for incidence of low back pain and radiological changes of lumbar spine in asymptomatic Japanese military young adults.

Abstract

INTRODUCTION

The relation between radiological abnormalities on lumbar spine and low back pain (LBP) has been debated, presumably because of potential biases related to heterogeneity in selection of the subjects, radiological abnormalities at entry, or its cross-sectional observation in nature. Therefore, the aim of this study of a selected population of asymptomatic Japanese Self Defense Forces (JSDF) young adults male with normal lumbar radiographs was to investigate the incidence of newly developed lumbar degenerative changes at middle age and to study their association to LBP.

SUBJECTS AND METHODS

In 1990, 84 JSDF male military servicemen aged 18 years, without a history of LBP and radiological abnormal findings, were enrolled. After 20 years, 84 subjects were underwent repeated X-ray and completed questionnaires on current LBP and lifestyle factors.

RESULTS

The prevalence of LBP was demonstrated 59 %, with 85 % of them showing mild pain. Analysis of lumbar radiographs revealed that 48 % had normal findings and 52 % had degenerative changes. The association between LBP and life style factors was not demonstrated. Lumbar spine in subjects with LBP was more degenerated than in those without. Although disc space narrowing and LBP did not achieve a statistical significance, a significant correlation existed between vertebral osteophyte and LBP in univariate and multivariate analysis (OR 3.0; 95 % CI 1.227-7.333).

DISCUSSION AND CONCLUSIONS

This longitudinal study demonstrated the significant association between vertebral osteophyte and incidence of mild LBP in initially asymptomatic and radiologically normal subjects. These data provide the additional information concerning the pathology of LBP, but further study is needed to clarify the clinical relevance.

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    MeSH

    Adolescent
    Adult
    Cross-Sectional Studies
    Follow-Up Studies
    Humans
    Incidence
    Intervertebral Disc Degeneration
    Japan
    Life Style
    Longitudinal Studies
    Low Back Pain
    Lumbar Vertebrae
    Male
    Military Personnel
    Questionnaires
    Severity of Illness Index

    Pub Type(s)

    Journal Article

    Language

    eng

    PubMed ID

    22926435

    Citation

    TY - JOUR T1 - A longitudinal study for incidence of low back pain and radiological changes of lumbar spine in asymptomatic Japanese military young adults. AU - Nemoto,Osamu, AU - Kitada,Akira, AU - Naitou,Satoko, AU - Tsuda,Yoshifumi, AU - Matsukawa,Keitarou, AU - Ukegawa,You, Y1 - 2012/08/28/ PY - 2012/3/3/received PY - 2012/8/14/accepted PY - 2012/6/29/revised PY - 2012/8/28/aheadofprint PY - 2012/8/29/entrez PY - 2012/8/29/pubmed PY - 2013/7/23/medline SP - 453 EP - 8 JF - European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society JO - Eur Spine J VL - 22 IS - 2 N2 - INTRODUCTION: The relation between radiological abnormalities on lumbar spine and low back pain (LBP) has been debated, presumably because of potential biases related to heterogeneity in selection of the subjects, radiological abnormalities at entry, or its cross-sectional observation in nature. Therefore, the aim of this study of a selected population of asymptomatic Japanese Self Defense Forces (JSDF) young adults male with normal lumbar radiographs was to investigate the incidence of newly developed lumbar degenerative changes at middle age and to study their association to LBP. SUBJECTS AND METHODS: In 1990, 84 JSDF male military servicemen aged 18 years, without a history of LBP and radiological abnormal findings, were enrolled. After 20 years, 84 subjects were underwent repeated X-ray and completed questionnaires on current LBP and lifestyle factors. RESULTS: The prevalence of LBP was demonstrated 59 %, with 85 % of them showing mild pain. Analysis of lumbar radiographs revealed that 48 % had normal findings and 52 % had degenerative changes. The association between LBP and life style factors was not demonstrated. Lumbar spine in subjects with LBP was more degenerated than in those without. Although disc space narrowing and LBP did not achieve a statistical significance, a significant correlation existed between vertebral osteophyte and LBP in univariate and multivariate analysis (OR 3.0; 95 % CI 1.227-7.333). DISCUSSION AND CONCLUSIONS: This longitudinal study demonstrated the significant association between vertebral osteophyte and incidence of mild LBP in initially asymptomatic and radiologically normal subjects. These data provide the additional information concerning the pathology of LBP, but further study is needed to clarify the clinical relevance. SN - 1432-0932 UR - https://www.unboundmedicine.com/medline/citation/22926435/full_citation/A_longitudinal_study_for_incidence_of_low_back_pain_and_radiological_changes_of_lumbar_spine_in_asymptomatic_Japanese_military_young_adults_ L2 - http://dx.doi.org/10.1007/s00586-012-2488-4 ER -