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- W2069882309 abstract "New peripheral techniques are now available for the diagnosis of osteoporosis, but their value in the clinical management of the disease remains controversial. This study tests the hypothesis that peripheral quantitative computed tomography (pQCT) at the distal radius and/or quantitative ultrasound (QUS) at the calcaneus can serve as replacement or improvement of current methodology (QCT and DXA) for predicting bone strength at the hip and other sites. In 126 human cadavers (age, 80.2 +/- 10.4 years), DXA of the femur, spine, and radius and pQCT of the radius were acquired with intact soft tissues. QCT (spine) and QUS (calcaneus) were performed ex situ in degassed specimens. Femoral failure loads were assessed in side impact and vertical loading. Failure loads of the thoracolumbar spine were determined at three levels in compression and those of the radius by simulating a fall. Site-specific DXA explained approximately 55% of the variability in femoral strength, whereas pQCT and QUS displayed a lower association (15-40%). QUS did not provide additional information on mechanical strength of the femur, spine, or radius. All techniques displayed similar capability in predicting a combined index of failure strength at these three sites, with only QUS exhibiting significantly lower associations than other methods. These experimental results suggest that clinical assessment of femoral fracture risk should preferably rely on femoral DXA, whereas DXA, QCT, and pQCT display similar capability of predicting a combined index of mechanical strength at the hip, spine, and radius." @default.
- W2069882309 created "2016-06-24" @default.
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- W2069882309 date "2003-05-01" @default.
- W2069882309 modified "2023-10-09" @default.
- W2069882309 title "Can Novel Clinical Densitometric Techniques Replace or Improve DXA in Predicting Bone Strength in Osteoporosis at the Hip and Other Skeletal Sites?" @default.
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- W2069882309 doi "https://doi.org/10.1359/jbmr.2003.18.5.906" @default.
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