Prevalence of lumbar spondylosis and its association with low back pain among community-dwelling Japanese womenReportar como inadecuado

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BMC Musculoskeletal Disorders

, 17:493

Epidemiology of musculoskeletal disorders


BackgroundLumbar spondylosis is more prevalent among the middle-aged and elderly, but few population-based studies have been conducted, especially in Japan. The purpose of this study was to explore the prevalence of lumbar spondylosis and its associations with low back pain among community-dwelling Japanese women.

MethodsLateral radiographs of the lumbar spine were obtained from 490 Japanese women ≥ 40 years old, and scored for lumbar spondylosis using the Kellgren-Lawrence KL grade at lumbar intervertebral level from L1-2 to L5-S1. Height and weight were measured, and body mass index BMI was calculated. Low back pain in subjects was assessed using a self-administered questionnaire. Stiffness index bone mass was measured at the calcaneal bone using quantitative ultrasound.

ResultsPrevalence of radiographic lumbar spondylosis for KL ≥ 2, KL ≥ 3 and low back pain were 76.7%, 38.8% and 20.0%, respectively. Age was positively associated with radiographic lumbar spondylosis KL = 2, KL ≥ 3 and low back pain. Greater BMI was associated with lumbar spondylosis with KL = 2, but not with KL ≥ 3. Stiffness index was associated with neither radiographic lumbar spondylosis nor low back pain. Multiple logistic regression analysis identified radiographic lumbar spondylosis KL ≥ 3 at L3-4, L4-5 and L5-S1 was associated with low back pain, independent of age, BMI and stiffness index.

ConclusionSevere lumbar spondylosis at the middle or lower level may contribute to low back pain.

KeywordsLumbar spondylosis Epidemiology Community-based study Low back pain AbbreviationsBMDBone mineral density

BMIBody mass index

CIsConfidence intervals

DEXADual-energy X-ray absorptiometry


MRIMagnetic resonance imaging

ORsOdds ratios

QUSQuantitative ultrasound

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Autor: Ritsu Tsujimoto - Yasuyo Abe - Kazuhiko Arima - Takayuki Nishimura - Masato Tomita - Akihiko Yonekura - Takashi Miyamoto -


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