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Ultrasound Med Biol · Nov 2003
Comparative StudyThe usefulness of quantitative ultrasound at the hand phalanges in the detection of the different types of nontraumatic fractures.
- Bogna Drozdzowska, Wojciech Pluskiewicz, and Francesca de Terlizzi.
- Department of Pathomorphology in Zabrze, Poland. bognadr@poczta.onet.pl
- Ultrasound Med Biol. 2003 Nov 1;29(11):1545-50.
AbstractThe aim of this retrospective study was to determine whether quantitative ultrasound (QUS) at the hand phalanges has the ability to discriminate between individuals without and with different types of nontraumatic fractures. All women (n = 2466) (age range 38-88 years) not affected by metabolic diseases or under treatment with drugs known to interfere with bone metabolism were divided into controls without fractures (n = 1883) and women with nontraumatic previous fractures (n = 583). Fractures were the result of minimal trauma involving a fall from a standing height or less during normal daily activity. Fractured group was divided into subgroups on the basis of the types of fractures: hip, spine, wrist or other fractures. Skeletal status was assessed using the DBM Sonic 1200 (IGEA, Carpi, Italy) which measures the amplitude-dependent speed of sound, Ad-SoS (m/s) in the distal metaphyses of the proximal phalanges of the second through fifth finger of the dominant hand. Women with hip, spine, wrist or other fractures had significantly lower Ad-SoS values than controls (1814 +/- 60 m/s, 1829 +/- 57 m/s, 1870 +/- 64 m/s, 1893 +/- 66 m/s, respectively, vs. 1943 +/- 73 m/s, p < 0.001). Ad-SoS revealed the following areas under the ROC curve: 0.91 +/- 0.027 for hip fracture, 0.89 +/- 0.019 for spine fracture, 0.77 +/- 0.012 for wrist fracture and 0.70 +/- 0.023 for other fractures. By multiple logistic regression analysis, the probability of having fracture, estimated as odds ratio for each 1 SD reduction in Ad-SoS, was: 3.49 (95% CI, 1.57-7.75) for hip, 3.25 (95% CI, 1.94-5.45) for spine, 2.24 (95% CI, 1.86-2.70) for wrist and 1.81 (95% CI, 1.36-2.40) for other fractures. The present study demonstrates the ability of phalangeal QUS to discriminate between subjects with and without different types of nontraumatic fractures. Phalangeal QUS revealed the best sensitivity and specificity in discriminating hip- and spine-fractured patients from controls.
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