Bone organic matrix quality indices associate with fragility fracture occurrence independently of bone mineral density values
Authors' conclusion
The results indicate that fracture-suffering patients have altered quantitative and qualitative organic matrix attributes.
Study context
- Population
- Age- and BMD-matched postmenopausal women with or without fragility fractures; iliac crest biopsies, cortical and cancellous compartments at specific tissue ages
- Participants
- 60 vs 60
- Comparison
- Postmenopausal women who sustained fragility fractures vs those who did not
- Fracturen = 60
- No fracturen = 60reference
- Outcome
- Bone organic matrix quality indices (mineral/matrix, mineral crystallinity, nanoporosity, glycosaminoglycan and pyridinoline contents) by Raman microspectroscopy
Methodological detailsage- and BMD-matched, Raman microspectroscopy of iliac crest biopsies, 2-way ANOVA
- Age- and BMD-matched
- Raman microspectroscopy of iliac crest biopsies
- 2-way ANOVA
Main finding
As reported in the abstract
Organic matrix quality indices
- Tissue-age-unadjusted: differences between anatomical compartments but no differences between the two patient groups
- Tissue-age-adjusted: higher mineral/matrix in Fracture in both compartments (in cortical, due to lower organic matrix content)
- At forming cortical surfaces: higher nanoporosity and lower pyridinoline content in Fracture
- Higher glycosaminoglycan content in interstitial bone of the cancellous compartment in Fracture
Observational data: associations, not effects.
Original publication
Bone organic matrix quality indices associate with fragility fracture occurrence independently of bone mineral density values. Osteoporos Int. Published 13 August 2026. doi:10.
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