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Erschienen in: Osteoporosis International 2/2019

10.10.2018 | Original Article

Associations between radius low-frequency axial ultrasound velocity and bone fragility in elderly men and women

verfasst von: E. Biver, J. Pepe, A. de Sire, T. Chevalley, S. Ferrari

Erschienen in: Osteoporosis International | Ausgabe 2/2019

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Abstract

Summary

An exploratory study in elderly women and men from the Geneva Retirees Cohort indicates that low-frequency quantitative ultrasound measurement at the radius captures aBMD, bone size, and cortical tissue mineral density and might be used for screening purposes prior to DXA to evaluate fracture risk.

Introduction

The contribution of distal radius bone mineral density (BMD) and cortical microstructure to fracture risk has recently been demonstrated. In this exploratory study, we investigated whether low-frequency quantitative ultrasound measurement at the distal radius may capture the peripheral determinants of bone fragility assessed with dual-energy X-ray absorptiometry (DXA) and high-resolution peripheral quantitative computed tomography (HR-pQCT).

Methods

Low-frequency velocity (VLF) was measured at the radius using OsCare Sono®, a portable axial transmission ultrasonometer, in 271 community-dwelling postmenopausal women and men (age 71.5 ± 1.4 years) from the Geneva Retirees Cohort. Cortical (Ct) and trabecular (Tb) volumetric (v) BMD and microstructure at the distal radius were assessed by HR-pQCT, in addition to areal (a) BMD by DXA, at the same time point.

Results

VLF was highly correlated with aBMD at the distal third radius (r = 0.72, p < 0.001). For microstructure parameters, the highest correlation was observed with cortical area (r = 0.59, p < 0.001). VLF also captured bone geometry (total area) and cortical tissue mineral density independently of aBMD. In models adjusted for age and sex, VLF was significantly associated with prevalent low-trauma fractures [OR 95%CI for one SD decrease of VLF 1.50 (1.05, 2.14), p = 0.024], with discrimination performance comparable to femoral neck or distal radius aBMD.

Conclusion

Measurement of VLF at the radius captures aBMD, bone size, and cortical tissue mineral density and might be used for screening purposes prior to DXA to evaluate fracture risk.
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Metadaten
Titel
Associations between radius low-frequency axial ultrasound velocity and bone fragility in elderly men and women
verfasst von
E. Biver
J. Pepe
A. de Sire
T. Chevalley
S. Ferrari
Publikationsdatum
10.10.2018
Verlag
Springer London
Erschienen in
Osteoporosis International / Ausgabe 2/2019
Print ISSN: 0937-941X
Elektronische ISSN: 1433-2965
DOI
https://doi.org/10.1007/s00198-018-4725-0

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