Figure 2.

Five different internal fixation after assembly of 3D model. A: Double plates model, white arrow show the two plates; B: One reconstruction plate and one posterior iliac screw fixed model, as indicated by the white arrow; C: One canulated screw fixed sacroiliac joint model, as indicated by the white arrow; D: Crossed fixation with one posterior iliac screw and one sacroiliac joint screw model, as indicated by the white arrow; E: Crossed fixation with two posterior iliac screw and one sacroiliac joint screw model, as indicated by the white arrow.