![]() In contrast, CT allows sagittal alignment evaluation, and the resulting images are sufficient to determine the degree of compression. However, the method is sensitive to the angle of exposure, patient position, morphology of the vertebral body, and experience of the X-ray technician, which may cause small errors in determining the degree of vertebral body compression in some cases. This approach involves the use of lateral thoracolumbar X-rays to determine the degree of vertebral compression. proposed a semiquantitative method for classifying osteoporotic vertebral compression fractures, which is now commonly used. Thus, DXA alone is insufficient for assessing BMD in patients with lumbar degenerative disease. It has been proven that the prevalence of osteoporosis is high in patients with lumbar degenerative disease, as is the rate of missed diagnosis by DXA. Elderly patients with osteoporotic fractures tend to have concomitant degenerative disease however, lumbar degenerative diseases may lead to artificially increased DXA measurements with missing diagnosis of osteoporosis. ![]() BMD determination is also the most commonly used method for evaluating bone density in spinal surgery. However, although BMD is a risk factor for fracture, some fragility fractures occur in individuals with BMD T values above the − 2.5 threshold, which suggests that BMD has limited clinical value in predicting osteoporosis. Due to specific spinal biomechanics, the thoracolumbar vertebral bodies (T10–L2) are the most easily fractured vertebral bodies in spinal trauma.ĭual-energy X-ray absorptiometry (DXA) is currently considered to be the gold standard for bone mineral density (BMD) quantification and has been shown to correlate with fracture risk and therapeutic efficacy. Vertebral fractures are the most common osteoporotic fractures, followed by fractures of the proximal femur and distal radius. With ageing of the population, osteoporosis is becoming a global problem and currently affects approximately 200 million people worldwide. Further longitudinal studies with larger cohorts are needed to verify this relationship. This study provides quantitative evidence that a greater compression ratio with thoracolumbar osteoporotic fractures was associated with lower bone density in elderly patients. The local bone quality as evaluated by the CT HU value is an important factor affecting the degree of compression in osteoporotic vertebral fractures. The degree of vertebral compression in thoracolumbar osteoporotic fractures was strongly positively correlated with the cancellous bone CT HU value ( P < 0.01). Measurements showed both good intrarater repeatability and good interrater reproducibility of the vertebral compression ratio (ICC = 0.978). The average vertebral compression ratio was 0.57 ± 0.16. The patients’ average age was 70.39 ± 8.53 years, and the average CT HU value was 72.78 ± 29.75 HU. ResultsĪ total of 54 patients were included in the final analysis. The average CT HU value of the adjacent vertebral body was used instead. The consistency of measurement between two spine surgeons was evaluated. All patients experienced a low-energy trauma and underwent thoracolumbar MRI. MethodsĮlderly patients with single-segment vertebral fragility fractures were retrospectively reviewed. To explore the correlation of the vertebral compression degree and cancellous bone CT HU in elderly patients with osteoporotic thoracolumbar fractures.
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