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  • Title: Colles' fracture and bone density of the ultradistal radius.
    Author: Eastell R, Riggs BL, Wahner HW, O'Fallon WM, Amadio PC, Melton LJ.
    Journal: J Bone Miner Res; 1989 Aug; 4(4):607-13. PubMed ID: 2816507.
    Abstract:
    To determine whether Colles' fracture, generally considered a manifestation of postmenopausal osteoporosis, is associated with a decrease in bone density at the site of fracture, we measured bone mineral density of the ultradistal radius (UDR-BMD) by single-photon absorptiometry with computer-assisted image processing. In 119 normal women (ages 22-92 years), UDR-BMD decreased by 17% between ages 30 and 75 years. From UDR-BMD measurements in these normal women and in 40 women (ages 53-80 years) with Colles' fracture alone, a population-based analysis was made to estimate fracture risk at different values of UDR-BMD. Colles' fracture was uncommon at UDR-BMD greater than 0.40 g/cm2 (the "fracture threshold"). As bone density decreased below this level, fractures became more frequent (a "gradient of risk").
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