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Abstract

Introduction/background: Both areal bone mineral density (aBMD) and bone microarchitecture have been associated with vertebral deformity (VD), but there are limited data on the utility of bone microarchitecture measures in combination with aBMD in discriminating VD. This study aimed to describe whether radial bone microarchitecture measures alone or in combinations with radial volumetric bone mineral density (vBMD) or spine aBMD can improve discrimination of VD in adults. Methods: Data on 196 subjects (mean age (standard deviation, SD) = 72 (7) years, female 46%) were utilized. VD of T4-L4 and spine aBMD were measured using dual-energy X-ray absorptiometry. VD was defined if anterior to posterior height ratio was more than 3-SD, 4-SD below, or >25% decrease compared with the sex-matched normal means. Bone microarchitecture parameters at distal radius were collected using high-resolution peripheral quantitative computed tomography and analyzed using StrAx. Results: The strongest associations were seen for the cortical thickness (odds ratios (ORs): 2.63/SD decrease for 25% and 2.38/SD decrease for 3-SD criterion) and compact cortical area (OR: 3.33/SD decrease for 4-SD criterion). The area under the receiver operating characteristic curve (AUC) for spine aBMD for VD was 0.594, 0.597, and 0.634 for 25%, 3-SD and 4-SD criteria, respectively (all p Conclusions: Cortical measures had the best utility for discriminating VD when used alone. Adding either spine aBMD or radial vBMD did not improve the utility of cortical measures.

Item Type:	Article
Authors/Creators:	Ma, C and Wu, F and Pan, F and Laslett, L and Shah, A and Squibb, K and Winzenberg, T and Jones, G
Keywords:	discrimination, dual-energy X-ray absorptiometry, high-resolution peripheral quantitative computed tomography, vertebral deformity
Journal or Publication Title:	Journal of Clinical Densitometry
Publisher:	Humana Press Inc
ISSN:	1094-6950
DOI / ID Number:	https://doi.org/10.1016/j.jocd.2020.05.005
Copyright Information:	Copyright 2020 Published by Elsevier Inc. on behalf of The International Society for Clinical Densitometry
Related URLs:	Google Scholar: Wu, F Google Scholar: Pan, F Google Scholar: Laslett, L UTAS Profile: Laslett, L UTAS Profile: Squibb, K Google Scholar: Winzenberg, T UTAS Profile: Winzenberg, T Google Scholar: Jones, G UTAS Profile: Jones, G
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