Authors
SoJung Kim, Heather M Macdonald, Lindsay Nettlefold, Heather A McKay
Publication date
2013/9/1
Journal
Journal of Bone and Mineral Research
Volume
28
Issue
9
Pages
2035-2042
Publisher
John Wiley and Sons and The American Society for Bone and Mineral Research (ASBMR)
Description
Paradoxically, Asians have lower areal bone mineral density (aBMD), but their rates of hip and wrist fractures are lower than whites. Therefore, we used high‐resolution pQCT (HR‐pQCT) to determine whether differences in bone macrostructure and microstructure, BMD, and bone strength at the distal radius were apparent in Asian (n = 91, 53 males, 38 females, [mean ± SD] 17.3 ± 1.5 years) and white (n = 89, 46 males, 43 females, 18.1 ± 1.8 years) adolescents and young adults. HR‐pQCT outcomes included total BMD (Tt.BMD), trabecular bone volume fraction (BV/TV), and trabecular number (Tb.N), thickness (Tb.Th), and separation (Tb.Sp). We used an automated segmentation algorithm to determine total bone area (Tt.Ar), and cortical BMD (Ct.BMD), porosity (Ct.Po), and thickness (Ct.Th), and we applied finite element (FE) analysis to HR‐pQCT scans to estimate bone strength …
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