Age-related differences in volumetric bone mineral density, microarchitecture, and bone strength of distal radius and tibia in Chinese women: a high-resolution pQCT reference database study

2015 ◽  
Vol 26 (6) ◽  
pp. 1691-1703 ◽  
Author(s):  
V. W. Y. Hung ◽  
T. Y. Zhu ◽  
W.-H. Cheung ◽  
T.-N. Fong ◽  
F. W. P. Yu ◽  
...  
2015 ◽  
Vol 26 (7) ◽  
pp. 1893-1901 ◽  
Author(s):  
J. Paccou ◽  
M. H. Edwards ◽  
K. A. Ward ◽  
K. A. Jameson ◽  
C. L. Moss ◽  
...  

2020 ◽  
Vol 105 (8) ◽  
pp. e2726-e2737
Author(s):  
Aline Barbosa Moraes ◽  
Marcela Pessoa de Paula ◽  
Francisco de Paula Paranhos-Neto ◽  
Emanuela Mello Ribeiro Cavalari ◽  
Felipe Fernandes Cordeiro de Morais ◽  
...  

Abstract Context Data regarding high-resolution peripheral quantitative computed tomography (HR-pQCT) in patients with adrenal incidentaloma (AI) are unknown. Purpose To evaluate the areal bone mineral density (aBMD), microstructure, and fractures in patients with nonfunctioning AI (NFAI) and autonomous cortisol secretion (ACS). Methods We evaluated 45 patients with NFAI (1 mg dexamethasone suppression test [DST] ≤1.8 µg/dL) and 30 patients with ACS (1 mg DST 1.9-5.0 µg/dL). aBMD was measured using dual-energy X-ray absorptiometry; vertebral fracture by spine X-ray; and bone geometry, volumetric bone mineral density (vBMD), and microstructure by HR-pQCT. Results Patients with ACS showed lower aBMD values at the spine, femoral neck, and radius 33% than those with NFAI. Osteoporosis was frequent in both groups: NFAI (64.9%) and ACS (75%). Parameters at the distal radius by HR-pQCT were decreased in patients with ACS compared to those with NFAI: trabecular vBMD (Tb.vBMD, P = 0.03), inner zone of the trabecular region (Inn.Tb.vBMD, P = 0.01), the bone volume/tissue volume ratio (BV/TV, P = 0.03) and trabecular thickness (P = 0.04). As consequence, a higher ratio of the outer zone of the trabecular region/inner zone vBMD (Meta/Inn.vBMD, P = 0.003) was observed. A correlation between the cortisol levels after 1 mg DST and Meta/Inn.vBMD ratio was found (r = 0.29; P = 0.01). The fracture frequency was 73.7% in patients with ACS vs 55.6% in patients with NFAI (P = 0.24). Conclusion Our findings point to an association between trabecular bone microarchitectural derangement at the distal radius and ACS. Our data suggest that AI have a negative impact on bone when assessed by HR-pQCT, probably associated to subclinical hypercortisolism.


2007 ◽  
Vol 10 (3) ◽  
pp. 276-284 ◽  
Author(s):  
Xiao-Guang Cheng ◽  
Ding-Zhuo Yang ◽  
Qi Zhou ◽  
Tie-Jun Zhuo ◽  
Hua-Chou Zhang ◽  
...  

2006 ◽  
Vol 24 (5) ◽  
pp. 380-385 ◽  
Author(s):  
Yin-Zhen Pi ◽  
Xian-Ping Wu ◽  
Shi-Ping Liu ◽  
Xiang-Hang Luo ◽  
Xing-Zhi Cao ◽  
...  

2017 ◽  
Vol 103 (3) ◽  
pp. 1188-1197 ◽  
Author(s):  
Ondrej Soucek ◽  
Eckhard Schönau ◽  
Jan Lebl ◽  
Johannes Willnecker ◽  
Zdenek Hlavka ◽  
...  

Abstract Context Patients with Turner syndrome (TS) are at risk for osteoporotic fractures. Objective The aims of this study were to assess the incidence of clinically important fractures in girls with TS and prospectively describe the development of volumetric bone mineral density (BMD). Design Peripheral quantitative computerized tomography (pQCT) of the radius every other year over the 6 years of observation. Setting Government-funded university referral center. Participants Thirty-two girls with TS, aged 6 to 16 years, were included in the analyses. Fracture incidence was compared with the data in the general population. Bone density and strength were compared with data from 185 healthy girls. Outcomes The main clinical outcome was the fracture occurrence. The secondary outcomes were the changes in Z-scores of the bone parameters. Results Three girls with TS sustained four fractures during 6 years of observation. The fracture rate in TS was not substantially higher than the downward-biased fracture-rate estimate from age-matched, healthy controls (P = 0.48). Whereas the trabecular BMD Z-score decreased with age (β estimate −0.21 ± 0.04, P < 0.001), total bone cross-sectional area correspondingly increased (+0.16 ± 0.04, P < 0.001), which led to normal bone strength. A positive history of incident fractures was not significantly associated with any of the pQCT-derived bone parameters. Conclusions Current pediatric TS patients that are treated with growth hormone and estrogens are not at risk for osteoporotic fractures. Low BMD in TS may be counterweighted by enlarged bone radius, which leads to normal bone strength at the appendicular skeleton.


Bone ◽  
2015 ◽  
Vol 78 ◽  
pp. 122-129 ◽  
Author(s):  
Julien Paccou ◽  
Mark Hiley Edwards ◽  
Kate Ward ◽  
Karen Jameson ◽  
Rebecca Moon ◽  
...  

2000 ◽  
Vol 67 (1) ◽  
pp. 29-36 ◽  
Author(s):  
L. Qin ◽  
S. K. Au ◽  
K. M. Chan ◽  
M. C. Lau ◽  
J. Woo ◽  
...  

2003 ◽  
Vol 44 (5) ◽  
pp. 525-531 ◽  
Author(s):  
M. Zanetti ◽  
J. Romero ◽  
M. A. Dambacher ◽  
J. Hodler

Purpose: To evaluate if osteonecrosis diagnosed on MR images of the knee relates to reduced bone mineral density (BMD) and may be caused by an insufficiency fracture. Material and Methods: Thirty-two consecutive patients (8 men, 24 women; age range 27–82 years, mean 62 years) with MR findings of osteonecrosis of the femoral or tibial condyle were prospectively included. Trabecular and cortical BMD were measured with high resolution peripheral quantitative CT in the non-dominant distal radius and the tibia of the involved extremity. One tibia was not measured due to posttraumatic deformity. Results: The mean trabecular BMD of the radius was 81% of the young-adult average peak BMD (range 19–160%). The mean cortical BMD in the radius was 86% (range 63–108%). The mean trabecular BMD in the tibia was 92% (range 28–160%). The mean cortical BMD in the tibia was 86% (range 49–132%). The values of the trabecular bone of the distal radius (tibia) were normal in 11 (15) patients, osteopenic in 12 (4), and osteoporotic in 9 (12), respectively. The cortical bone values of the distal radius (tibia) were normal in 12 (13) patients, osteopenic in 12 (12), and osteoporotic in 8 (6), respectively. Conclusion: Osteoporosis and osteopenia are commonly found in patients with osteonecrosis of the knee as diagnosed on MR images. This indicates that for some patients an insufficiency mechanism may be responsible for the MR findings. However, in the patients with normal bone density other reasons for osteonecrosis may be present.


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