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  • Title: Schmorl's nodes could be associated with intervertebral disc degeneration at upper lumbar levels and end-plate disease at lower lumbar level in patients with low back pain.
    Author: Ekşi MŞ, Turgut VU, Berikol G, Özmen BB, Huet SE, Dinç T, Küçüksüleymanoğlu D, Orhun Ö, Özcan-Ekşi EE.
    Journal: J Clin Neurosci; 2022 Jun; 100():66-74. PubMed ID: 35427987.
    Abstract:
    Schmorl's nodes (SNs) have increasingly been recognized on vertebral end-plates using advanced imaging techniques. Even though vertebral end-plates are the closest structures to discs, their pathologies are underestimated in the etiology of low back pain (LBP). We aimed to detect the prevalence of SNs and other end-plate defects in subjects with/without LBP and to understand whether SNs were associated with LBP and spinal degeneration. Subjects were evaluated in terms of end-plate defects, intervertebral disc degeneration (IVDD), and vertebral end-plate changes (Modic changes) at all lumbar levels on lumbar spine magnetic resonance imagings (MRI). Control subjects were compared to patients with LBP. Higher Pfirrmann scores (OR: 2.696) and higher SN scores (OR: 8.076) were significantly associated with Modic changes at L4-L5 disc level. Patients with higher SN scores at L1-L2 or L2-L3 levels had approximately 7-fold increased risk of severe IVDD at the corresponding levels. The most significant factor associated with presence of SNs was body weight of the patients (OR: 1.417). The most significant factor associated with intensity of LBP was severe IVDD at L5-S1 level (OR: 3.670). Having higher total SN score had an OR of 1.230 (95% CI: 1.003-1.509; p = 0.047) for predicting LBP. Schmorl's nodes were seen in 33.1% of patients and 11.5% of asymptomatic subjects. Body weight was the most significant factor associated with SNs. The most significant factor associated with LBP was severe IVDD at L5-S1 level.
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