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KMID : 1144220220280030112
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Journal of Menopausal Medicine
2022 Volume.28 No. 3 p.112 ~ p.120
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Trabecular Bone Score as a Risk Factor of Major Osteoporotic Fracture in Postmenopausal Women: The First Study in Thailand
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Therdyothin Atiporn
Amphansap Tanawat
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Abstract
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Objectives: To compare the trabecular bone score (TBS) between Thai postmenopausal women with and without major osteoporotic fracture, and to determine whether TBS is associated with fracture risk.
Methods: All postmenopausal women sent for dual-energy X-ray absorptiometry (DXA) at the Police General Hospital were retrospectively recruited. The hospital’s online database and radiographs were reviewed to collect information on underlying disease, medication, previous fractures, bone mineral density, and trabecular bone score. Patients with anti-osteoporotic medication use, skeletal malignancy, fracture from high-energy trauma, and uninterpretable DXA images were excluded.
Results: A total of 407 Thai postmenopausal women were enrolled. They were divided into 292 women without fractures and 115 women with major osteoporotic fractures. The fracture group was older (73.36 ± 9.95 vs. 66.00 ± 8.58, P < 0.001) and had lower serum 25-hydroxyvitamin D levels (23.28 ± 9.09 vs. 26.44 ± 9.20, P = 0.023). The mean TBS was lower in the fracture group, compared to the non-fracture group (1.244 ± 0.101 vs. 1.272 ± 0.099, P = 0.011). The subgroup analysis resulted in noticeably lower TBS in spine fracture, but not other fracture sites. The odds ratio of fracture was 1.355 (P = 0.013) for a decrease in one standard deviation of TBS.
Conclusions: TBS was significantly lower in postmenopausal women having fractures with an odd ratio of 1.355 (P = 0.013) per SD decrease in TBS. Categorizing by fracture sites, TBS was only found to be noticeably lower in the lumbar spine despite similar lumbar spine bone mineral density.
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KEYWORD
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Bone quality, Fracture risk, Fragility fracture, Osteoporosis, Trabecular bone score
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