X射线骨皮质厚度值及扫描灰度值对老年骨质疏松症病人髋部脆性骨折风险的预测价值

doi:10.3969/j.issn.1003-9198.2022.08.013

Abstract

Abstract: Objective To investigate the value of cortical bone thickness and gray value measured by X-ray in predicting the risk of hip fragility fracture of the elderly patients with osteoporosis. Methods The clinical data of 82 elderly patients with osteoporosis who underwent X-ray pelvic examination in our hospital from March 2018 to February 2021 were retrospectively analyzed. The incidence of hip fragility fracture of the patients was recorded, and the clinical data of the fracture group and the non-fracture group were compared. The risk factors of hip fragility fracture in the elderly patients with osteoporosis were analyzed by Multivariate Logistic regression, and the receiver operating characteristic (ROC) curve was drawn to analyze the value of cortical bone thickness and gray value measured by X-ray in predicting the risk of hip fragility fracture in the elderly patients with osteoporosis. Results Among the 82 patients, 28 presented with hip fragility fracture, and the incidence rate was 34.15%. The bone mineral density of L₂ vertebra and greater trochanter, the cortical bone thickness of the upper and the lower of lesser trochanter, and the gray value of X-ray scanning in the fracture group were lower than those in the non-fracture group (P<0.05). Multivariate Logistic regression analysis showed that the cortical bone thickness of the upper of lesser trochanter (OR=3.374, 95%CI: 1.853-8.429, P=0.012) and gray value of X-ray scanning (OR=3.133, 95%CI:1.506-6.475, P=0.023) were the risk factors for hip fragility fracture in the elderly patients with osteoporosis. ROC curve analysis showed that the area under the curve (AUC) of the cortical bone thickness of the upper of lesser trochanter combined with the gray value of X-ray scanning in predicting hip fragility fracture in the elderly patients with osteoporosis was 0.856, which was higher than that of the two indexes separately (Z=1.976, P=0.048; Z=2.202, P=0.028). Conclusions The cortical bone thickness of the upper of lesser trochanter and the gray value of X-ray scanning can predict the risk of hip fragility fractures in the elderly patients with osteoporosis, and the combination of the two indexes has a higher predictive efficiency.

Key words: aged, osteoporosis, X-ray, cortical bone thickness, gray value, hip fragility fracture

CLC Number:

R445.4

XU Qin, WANG Li-ming, SHA Wei-ping, YAN Fei, HUANG Qun, ZHOU Zhi-ping. Value of cortical bone thickness and gray value measured by X-ray in predicting the risk of hip fragility fracture in elderly patients with osteoporosis[J]. Practical Geriatrics, 2022, 36(8): 805-808.

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Value of cortical bone thickness and gray value measured by X-ray in predicting the risk of hip fragility fracture in elderly patients with osteoporosis

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