目的 分析16层螺旋CT(MSCT)对 老年复杂骨关节骨折的显像效果及分型诊 断价值。方法 以我院2013年5月-2015年 1月收治的70例复杂骨关节骨折患者为研 究对象，均行数字X线(DR)检查及16-MSCT 检查，其中MSCT扫描后行多平面(MPR)、 三维表面(SSD）及容积(VR)重建，比较 不同图像骨折线显示及骨折分型诊断。结 果 70例患者共215处骨折线，DR检出率 77.2%，显著低于MSCT轴位图像、MPR、VR 的97.7%、100.0%、90.7%，差异有统计学 意义(P＜0.01)。骨折分型上DR误诊(包括 漏诊)16例，其中胫骨平台骨折6例，脊 柱骨折3例，髋臼骨折5例，踝关节骨折2 例。结论 相比DR，16-MSCT及其多种重建 技术对老年复杂骨关节骨折的显像效果及 分型诊断有明显优势。

Objective To analyze the imaging effect and classificatory diagnostic value of 16-MSCT for elderly complex fractures of bone and joint. Methods 70 patients with complex fractures of bone and joint who were treated in the hospital during May 2013 to January 2015 were taken as the research objects. All of them received digital radiography (DR) and 16-MSCT scan. After MSCT scan, multiplanar reconstruction (MPR), three-dimensional surface reconstruction (SSD) and volume reconstruction (VR) were performed. The different image fracture line findings and fracture classificatory diagnosis were compared. Results There were 215 fracture lines in 70 cases of patients. The detection rate of DR was 77.2% which was significantly lower than 97.7%, 100% and 90.7% of MSCT axial images, MPR and VR (P<0.01). For fracture classification, there were 16 cases misdiagnosed (including missed diagnosis), including 6 cases of tibial plateau fractures, 3 cases of spinal fractures, 5 cases of acetabular fractures and 2 cases of ankle fractures. Conclusion Compared with DR, 16-MSCT and its multiple reconstruction techniques have obvious advantages in imaging effect and classificatory diagnosis of elderly complex fractures of bone and joint.