Bone turnover biomarkers and semi-quantitative bone histomorphometry in chronic kidney disease: Comparison between patients with and without fractures
Abstract
Background: Chronic kidney disease (CKD) is associated with increased fracture risk not fully explained by reduced bone mineral density. CKD-mineral and bone disorder (CKD-MBD), involving abnormalities in bone turnover, mineralization, and microarchitecture, contributes to skeletal fragility. However, the relationship between routine biochemical markers and semi-quantitative bone histomorphometry remains inadequately defined, particularly in resource-limited settings and the Indian population. The objective of this study was to compare biochemical markers and semi-quantitative bone histomorphometric findings in CKD patients with and without fractures.
Methods: In this hospital-based comparative cross-sectional study, 48 patients with CKD stage 3-4 were divided into fracture (n = 24) and non-fracture groups (n = 24). Serum calcium, 25-hydroxyvitamin D, parathyroid hormone (PTH), and alkaline phosphatase (ALP) were measured. Bone samples were obtained intraoperatively or via transiliac crest biopsy. Semi-quantitative bone histomorphometry was assessed by a pathologist. Statistical analysis included appropriate group comparisons.
Results: Fracture patients had significantly lower vitamin D (p = 0.007) and calcium (p = 0.005), and higher PTH (p = 0.002) and ALP (p = 0.001). Semi-quantitative histomorphometric evaluation showed increased osteoid volume, reduced trabecular thickness, and elevated osteoblastic and osteoclastic activity.
Conclusion: In our study cohort, CKD patients…
How strong is the evidence?
Evidence Hub reads this as a cross-sectional, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause. Reported size: 48 participants or records.
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