Objective: To make comparison between the reliability and validity of both X-ray and 3D(three-dimensional) CT imaging inevaluation of Tibial plateau fracture, and to discuss the application of the X-ray and 3D CT examination. Methods: Analyzed retrospectively 32 cases of Tibial plateau fracture who were hospitalized from January 2015 to January 2016. X-ray and 3D CT imaging were respectively used to judge the fracture type and characteristics, Analyze the standard validity of the facture judgment results(the operation record description was used as the gold standard). The differences between the X-ray and 3D CT judgment results and the gold standard were compared by Mc Nemar test. Results: The diagnosis of external column with 3D CT was significantly higher than that of X-ray results(P
=0.031). Conclusion: The 3D CT examination can increase the reliability and accuracy of the evaluation of tibial plateau fracture, and is helpful to guide the diagnosis and the determination of operation schedule.