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- Title
Association between vertebral cross-sectional area and lumbar disc displacement – a population-based study.
- Authors
Ollila, Laura; Oura, Petteri; Karppinen, Jaro; Niinimäki, Jaakko; Junno, Juho-Antti
- Abstract
Purpose: Vertebral dimensions may constitute a potential risk factor for degenerative changes in the spine. Previous studies have found a positive association between vertebral height and both type 2 Modic changes and intervertebral disc height loss. Also, vertebral endplate size has been associated with disc degeneration. However, only a few studies have investigated the association between vertebral dimensions and lumbar disc displacement (LDD). This study aimed to investigate the association between vertebral cross-sectional area (CSA) and LDD among the general middle-aged Finnish population. We hypothesized that larger vertebral CSA is associated with LDD. Materials and methods: The study was conducted by using data from the Northern Finland Birth Cohort 1966 (NFBC1966). At the age of 46, a subpopulation of NFBC1966 underwent clinical examinations including magnetic resonance imaging (MRI) (n = 1249). MRI scans were used to measure L4 CSA and evaluate the presence of LDD (bulge, protrusion, and extrusion/sequestration) in the adjacent discs. The association between L4 CSA and LDD was analysed using logistic regression, with adjustment for sex, education, body mass index, leisure-time physical activity, smoking, diet, and L4 height. Results: Larger L4 CSA was associated with LDD; an increase of 1 cm2 in vertebral CSA elevated the odds of LDD relative to no LDD by 10% (adjusted odds ratio 1.10, 95% CI 1.01–1.19). The association was similar among either sex. Conclusions: Larger L4 vertebral CSA was associated with LDD in our study sample. Even though smaller vertebral size exposes our vertebrae to osteoporotic fractures, it simultaneously seems to protect us from LDD.
- Subjects
VERTEBRAL fractures; INTERVERTEBRAL disk; MAGNETIC resonance imaging; BONE fractures; BODY mass index
- Publication
European Spine Journal, 2024, Vol 33, Issue 3, p900
- ISSN
0940-6719
- Publication type
Article
- DOI
10.1007/s00586-023-07853-8