Cited by 454Bone health and osteoporosis researchBone fractures and treatmentsHIV-related health complications and treatments

Alterations of Cortical and Trabecular Architecture Are Associated With Fractures in Postmenopausal Women, Partially Independent of Decreased BMD Measured by DXA: The OFELY Study

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Sornay-Rendu, Elisabeth, Boutroy, Stéphanie, Munoz, Françoise, Delmas, Pierre D·2007·Journal of Bone and Mineral Research

Abstract

We assessed the role of low aBMD and impaired architecture—assessed by an HR-pQCT system—in a case-control study of postmenopausal women with fractures. Vertebral and nonvertebral fractures are associated with low volumetric BMD and architectural alterations of trabecular and cortical bone, independent of aBMD assessed by DXA. Introduction: Alterations of bone architecture and low BMD both contribute to skeletal fragility, but the contribution of cortical and trabecular architecture, independently of areal BMD (aBMD), to the risk of fracture in postmenopausal women has not been thoroughly evaluated. We assessed the role of impaired architecture and low BMD in postmenopausal women with fractures. Materials and Methods: A matched case-control study in women from the OFELY cohort was performed after 13 years of follow-up. One hundred one women (mean, 73.7 ± 8 years) who sustained a fragility fracture during the follow-up of the study were age-matched with one control who never had a fracture. Density and architecture at the distal radius and tibia were measured with high-resolution pQCT (HR-pQCT) using an XTreme CT (Scanco Medical AG, Bassersdorf, Switzerland). aBMD at the total hip and ultradistal radius was measured by DXA. Results: There were 80 peripheral fractures in 72 women, 44 vertebral fractures in 34 women, and both types of fractures in 5 women over the 14 years of follow-up. At the distal radius, women with fractures had lower volumetric total (D tot) and trabecular (D trab) BMDs, BV/TV, cortical thickness (Cort Th), trabecular number (TbN), and trabecular thickness (TbTh) and higher trabecular separation (TbSp) and distribution of trabecular separation (TbSpSd) than controls without fractures. In a logistic model, each SD decrease of volumetric total and trabecular densities was associated with a significantly increased risk of fracture at both sites (ORs ranged from 2.00 to 2.47). After adjusting for aBMD measured by DXA at the ultradistal radius, differences between cases and controls remained significant for D trab, and there was a similar trend for TbN, TbSp, and TbSpSd, with adjusted ORs ranging from 1.32 to 1.50. At the distal tibia, before and after adjusting for total hip aBMD, differences between cases and controls remained significant for D tot, D trab, Cort Th, and TbTh, with adjusted ORs ranging from 1.80 to 2.09. Conclusions: In postmenopausal women, vertebral and nonvertebral fractures are associated with low volumetric BMD and architectural alterations of trabecular and cortical bone that can be assessed noninvasively and that are partially independent of aBMD assessed by DXA.

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  • Loss of bone mass alone is insufficient to cause bone fractures.

    “Once loss of bone mass alone is insufficient to cause bone fractures [118], it is suggested that other factors, including changes in the bone matrix proteins and their modifications, are of crucial importance to the understanding and prediction of bone fractures [119].”

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  1. Belsley DA, Kuh E, Welsch RE 1980 Regression Diagnostics: Identifying Influencial Data and Sources of Colinearity. John Wiley and Sons, New York, NY, USA.

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Authors
Sornay-Rendu, E., Boutroy, S., Munoz, F., & Delmas, P. D.
Affiliations
  • INSERM Research Unit 403 and Université Claude Bernard Lyon 1, Lyon, France
  • Lyon 1 Université (FR)
Venue
Journal of Bone and Mineral Research
Published
2007-03-01
Volume
22
Issue
3
Pages
425-433
ISSN
  • 0884-0431 (ISSN-L)
  • 1523-4681
OpenAlex
W2069370255
Cited by
454
References
44
Citations by year
2026: 12 · 2025: 8 · 2024: 6 · 2023: 14 · 2022: 10 · 2021: 7 · 2020: 21 · 2019: 21 · 2018: 26 · 2017: 25 · 2016: 25 · 2015: 31 · 2014: 30 · 2013: 46 · 2012: 41
FWCI
18.85
Type
journal article
Language
en
Open access
Locations
  • Journal of Bone and Mineral Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Eli Lilly and Company
  • Institut National de la Santé et de la Recherche Médicale
Topics
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Bone health and osteoporosis research
  • Health Sciences › Medicine › Epidemiology › Bone fractures and treatments
  • Health Sciences › Medicine › Emergency Medicine › HIV-related health complications and treatments
Keywords
postmenopausal women, fragility fractures, bone structure, trabecular bone, cortical bone, volumetric bone mineral density, trabecular separation, trabecular number, trabecular thickness, cortical thickness, vertebral fractures, non-vertebral fractures, distal radius, tibia, dual-energy X-ray absorptiometry, fracture risk factors, bone fragility
MeSH terms
Adult, Aged, Aged, 80 and over, Female, Follow-Up Studies, Humans, Middle Aged, Retrospective Studies, Bone Density, Postmenopause, Fractures, Bone

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