Journal
BONE
Volume 48, Issue 2, Pages 307-311Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.bone.2010.09.027
Keywords
Vertebral fractures; Vertebral Fracture Assessment; Osteoporosis; Bone mineral density
Categories
Funding
- Osteoporosis Prevention and Treatment Center
- Dean's Summer Research Program [T35 DK065521, NIH K24 DK062895, P30 AG024827]
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Background: The presence of a vertebral fracture identifies a patient who has clinical osteoporosis. However, approximately 2/3 to 3/4 of VFs are asymptomatic. Vertebral Fracture Assessment is a method derived from dual-energy X-ray absorptiometry (DXA) to assess vertebral fractures. The objectives of this study were 1) to determine the association between the degree of height loss in older men and women and the risk of a vertebral fracture, and 2) to determine if the knowledge of vertebral fractures will alter the classification of osteoporosis based on bone mineral density alone. Methods: 231 men and women over the age of 65 underwent DXA scan of their spine and hip (including bone mineral density and Vertebral Fracture Assessment), measurement of their height, and a questionnaire. Results: We found that height loss was significantly associated with a vertebral fracture (p = 0.0160). The magnitude of the association translates to a 19% increase in odds for 1/2 in. and 177% for 3 in. Although 45% had osteoporosis by either bone mineral density or fracture criteria, 30% would have been misclassified if bone mineral density criteria were used alone. Conclusions: Height loss is an indicator for the presence of vertebral fractures. Bone mineral density criteria alone may misclassify older patients who have osteoporosis. (C) 2010 Elsevier Inc. All rights reserved.
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