Fig. 5

A 62-year-old man with posterior wall acetabular fractures underwent preoperative surgical planning using the one-stop computerized virtual planning system. The preoperative 3D-CT (a, b) and cross-sectional CT image (c) showed a comminuted fracture of the posterior wall of the left acetabulum with significant displacement. The left acetabulum with separate fragments (d) was 3D reconstructed virtually and then reduced anatomically (e). Virtual simulation of internal fixation (f, g) was conducted on the computer and the length of the mini-screw in dangerous areas was also measured (red arrow). Then, patient-specific reconstruction plates were ready for intra-operative placement with the aid of 3D-printed templates (h). Postoperative AP view (i), 3D-CT (j) and cross-sectional CT image (k) showed an anatomical reduction, with the mini-screw in a good position. Postoperative AP view (l) and the range of motion (m) at 30 months after surgery