Fig. 4

Hyperextensiion and common Schaztker bicondylar tibial plateau fractures. a Common Schaztker bicondylar tibial plateau fracture with clear fracture line on the A-P view of X-ray image. b Common Schaztker bicondylar tibial plateau fracture with the posterior slope of the tibial plateau on the lateral view of X-ray image. c Hyperextension bicondylar tibial plateau fracture (HBTPF), anterior plateau is compressed, and the fracture line is high density on the A-P view of X-ray image. d HBPTF, inversed posterior slope of the tibial plateau and distraction rupture of the posterior cortex are observed on the lateral view of X-ray image