目的 探讨多层螺旋CT(multislice spiral computed tomography， MSCT)及后重建技术在胫骨平台粉碎性骨 折诊断中的应用价值。方法 回顾性分析 2015年1月至2015年12月我院治疗的120例 胫骨平台骨折患者的病例。所有患者均行 膝关节正侧位DR平片、螺旋CT检查及多平 面重建(multi planar reconstruction, MPR)、容积再现(volume rendering, VR)图像后处理，然后对检查结果进行 Schatzker分型，比较两种影像学检查对 胫骨平台骨折进行Schatzker分型结果的 差异。结果 对胫骨平台骨折Schatzker分 型，多层螺旋CT检测符合率明显高于DR 平片检测符合率，且差异有统计学意义 (P<0.05)。结论 多层螺旋CT扫描在胫骨 平台粉碎性骨折诊断中有一定的优势，可 以进行立体、多平面、多角度成像，更精 确地显示骨折的形态、部位、类型以及关 节面损坏程度等信息，为胫骨平台粉碎性 骨折 Schatzker分型提供一定的依据，对 临床诊治有指导作用，值得推广应用。

Objective To discuss the application value of MSCT(Multi-slice Spiral CT) postprocessing technique in diagnosing tibial plateau comminuted fractures. Methods To Retrospectively analyze 120 patients with fracture of tibial plateau of our hospital treatment from January 2015 to December 2015. All patients were performed DR plain radiographs and spiral CT ,and they had post-processing technique like MPR and VR. Then the inspection results were classified into different type of Schatzker, and comparing the difference of Schatzker classification results of the two imaging examination on the fracture of tibial plateau. Results The coincidence rate of MSCT is significantly higher than DR flat piece in Schatzker classification for the tibial plateau fracture, the difference was statistically significant (P<0.05). Conclusion MSCT scans has certain advantages in the comminuted fracture of tibial plateau diagnosis, which can show comminuted fracture of tibial plateau in stereo, multi-plane and multi-angle, and more precisely shows the fracture morphology, site, type and degree of joint surface damage information. MSCT provides some basis for Schatzker classification of the comminuted fracture of tibial plateau, and improves the diagnosis and curative effect. which plays a guiding role and is worthy of popularization and application.