Based on CT classification, type I: posteromedial condylar tibial plateau split fracture (A); type II: posterolateral condylar split fracture of tibial plateau (B, C); type III: posterolateral condylar depression fracture of tibial plateau (D, E); type IV: posterolateral condylar split and depression fracture of tibial plateau (F, G); type V: Combined posteromedial split with posterolateral depression fracture of tibial plateau. (H, I-CT; J, K-X Ray; L-MRI).