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首页> 外文期刊>Neurosurgical focus >Lumbar computed tomography scans are not appropriate surrogates for bone mineral density scans in primary adult spinal deformity
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Lumbar computed tomography scans are not appropriate surrogates for bone mineral density scans in primary adult spinal deformity

机译：腰椎计算机断层扫描不适合替代成人原发性脊柱畸形中的骨矿物质密度扫描

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OBJECTIVE The authors examined the correlation between lumbar spine CT Hounsfield unit (HU) measurements and bone mineral density measurements in an adult spinal deformity (ASD) population. METHODS Patients with ASD were identified in the records of a single institution. Lumbar CT scans were reviewed, and the mean HU measurements from L1–4 were recorded. Bone mineral density (BMD) was assessed using femoral neck and lumbar spine dual-energy x-ray absorptiometry (DEXA). The number of patients who met criteria for osteoporosis was determined for each imaging modality. RESULTS Forty-eight patients underwent both preoperative DEXA and CT scanning. Forty-three patients were female and 5 were male. Forty-seven patients were Caucasian and one was African American. The mean age of the patients was 62.1 years. Femoral neck DEXA was more likely to identify osteopenia (n = 26) than lumbar spine DEXA (n = 8) or lumbar CT HU measurements (n = 6) (p CONCLUSIONS Despite the opportunistic utility of lumbar spine CT HU measurements in identifying osteoporosis in patients undergoing single-level fusion, these measurements were not useful in this cohort of ASD patients. The correlation between femoral neck DEXA and HU measurements was poor. DEXA assessment of BMD in ASD patients is essential to optimize the care of these complicated cases.
机译：目的作者检查了成人脊柱畸形（ASD）人群腰椎CT Hounsfield单位（HU）测量值与骨矿物质密度测量值之间的相关性。方法在单个机构的记录中识别出患有ASD的患者。回顾了腰部CT扫描，并记录了L1-4的平均HU测量值。使用股骨颈和腰椎双能X线骨密度仪（DEXA）评估骨矿物质密度（BMD）。对于每种成像方式，确定符合骨质疏松症标准的患者人数。结果48例患者均接受了术前DEXA和CT扫描。女43例，男5例。四十七名患者是白种人，一例是非洲裔美国人。患者的平均年龄为62.1岁。结论股骨颈DEXA比腰椎DEXA（n = 8）或腰CT CT测量（n = 6）更容易识别出骨质减少（p结论）尽管腰椎CT HU测量在确定骨质疏松症中具有机会性进行单级融合的患者，这些测量值在该组ASD患者中无效，股骨颈DEXA与HU测量值之间的相关性较差，ASD患者的BMD的DEXA评估对于优化这些复杂病例的治疗至关重要。

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