Figure 4.

Reconstruction of a type III pelvic defect. A, preoperative CT; B, side view of the prosthesis, with the red area showing the porous structure surface and the red arrow showing the individualized custom pubic augment; C, back view of the prosthesis, with the red arrow showing the individualized custom pubic augment; D, 3D design diagram of the prosthesis before the operation, with the red arrow showing that the individualized custom pubic augment can reconstruct the pubic defect; E, preoperative simulation of the 3D-printed model of the prosthesis only; F, preoperative simulation of the 3D-printed model of the installed prosthesis and bone; G, image of the intraoperative prosthesis installation; H, postoperative CT.