ArticleArchives of osteoporosis2025
Osteoporotic vertebral compression fracture in patients with childhood-onset lupus nephritis: prevalence and risk factors.
Article in Archives of osteoporosis, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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5 authors.
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Abstract
Vertebral fractures (VF) can occur due to childhood-onset lupus nephritis (cLN), which needs long-term use of immunosuppressants that affect bone health. This study found VF in 26.7% of cLN patients. Risk factors included low lumbar spine BMD Z-scores and high disease activity (SLEDAI-2K ≥ 20). Bone-strengthening and disease management strategies are important. PURPOSE: Pediatric vertebral fracture (VF) may occur under conditions that lead to decreased bone mass. Childhood-onset lupus nephritis (cLN) requires treatment with glucocorticoids and immunosuppressants. This study aimed to determine the prevalence of and risk factors for VF in patients with cLN.
methodsPatients with cLN who received glucocorticoids for more than 12 months underwent bone mineral density (BMD) evaluation and vertebral fracture assessment (VFA) via DXA scanning. Lupus disease activity was determined with the SLE Disease Activity Index 2000 (SLEDAI-2K), and scores ≥ 20 were classified as very high. Patients were classified based on the degree of vertebral compression using the Genant grading into two groups: VF (VFA > 20%) and no VF. Logistic regression was conducted to identify risk factors for VF.
resultsSeventy-five patients (67 females, 89%) were enrolled. The average age at diagnosis was 11.5 ± 2.2 years. The mean duration of cLN was 7.9 ± 5.8 years. Twenty patients (26.7%) had VF and 11 (55%) had multiple VFs. The median VFA was 20%, with an anterior compression predominance (84%). A logistic regression model identified two risk factors: a low lumbar spine BMD Z-score (OR 0.48, 95% CI 0.25-0.89, P = 0.02) and a very high SLEDAI-2K score (OR 20.38, 95% CI 1.60-257.89, P = 0.02).
conclusionMultiple VFs were prevalent in patients with cLN. The risk of VF increased by 48% with a one-unit decrease in the BMD Z-score and by 20 times with a very high SLEDAI-2K score. A strategy to maintain bone strength and control disease activity should be implemented in patients with cLN.
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