【摘要】 目的探讨老年肱骨近端骨折患者肱骨近端骨皮质厚度与骨密度(bone mineral density,BMD)的相关性。方法使用螺旋CT机对69例老年肱骨近端骨折患者的肩关节进行扫描后在图像工作站影像归档和通信系统处理软件中对两个水平层面图像的皮质骨厚度进行测量并取平均数,BMD值使用双能X线BMD测量仪测量获得,采用Spearman等级相关分析方法对腰椎和股骨颈处BMD与平均皮质骨厚度相关性进行计算。结果 69例患者中,男18例、女51例,女性骨质疏松者占全部病例的65%,男性骨质疏松者占全部病例的16%。男性患者腰椎、股骨颈处BMD和平均皮质骨厚度均优于女性(P<0.05),骨质疏松患者中男性患者腰椎、股骨颈处BMD和平均皮质骨厚度也优于女性(P<0.05)。腰椎、股骨颈处BMD与平均皮质骨厚度密切相关,骨质疏松患者的腰椎、股骨颈处BMD与平均皮质骨厚度也密切相关。结论采用CT扫描和图像工作站后处理软件测量肱骨近端皮质骨厚度是评价BMD的一种快捷、精确度较高的方法,是对DXA的有益补充。更多还原

【Abstract】 Objective To explore the possible association between proximal humeral cortical bone thickness and bone mineral density(BMD) in elderly patients with proximal humeral fractures. Methods We scaned 69 cases of the shoulders in elderly proximal humeral fracture patients and measured the average cortical bone thickness in two different CT layers with picture archiving and communication system(PACS). BMD was measured with dual-energy x-ray absorptiometry(DXA). Spearman correlations were used to assess the relationship between cortical bone thickness and BMD of femoral neck and lumbar vertebra. Results The study group was consisted of 69 cases, including 18 males and 51 females. About 65% of female and 16% of male were complicated by osteoporosis, The BMD of lumber and femoral neck were better in male patients than female patients(P<0.05), and in male osteoporosis patients than female osteoprosis patients(P<0.05). The BMD of lumber and femoral neck in all patients were closely related to average cortical bone thickness, and the same result was found in osteoporosis patients. Conclusion The measurement technique of average cortical bone thickness with CT and PACS is a quick and accurate method, which complements for DXA.更多还原