The second step for virtual reconstruction is autosegmentation of zygoma, orbits, nasal bone and zygoma .
Using autosegmentation algorithms, this procedure is performed by the software. The result can be virtually adjusted by the surgeon.
Virtual simulation of the midface reconstruction is performed by mirroring the unaffected right side after auto segmentation or by repositioning the segmented affected bones virtually.
Reconstruction of orbital walls in unilateral trauma is achieved by mirroring the contralateral side, virtually bending and shaping of the segmented areas allows virtual orbital reconstruction.
After virtual reconstruction, the modified dataset serves as a virtual template that can be used for intraoperative navigation, intraoperative imaging and postoperative verification of the reduction/reconstruction.
Anatomic 3D models can be produced based on the original CT-scan data set and the modified dataset with virtual reconstruction as shown here.
Patient specific implants are produced based on the 3D model where the virtual reconstruction has been made. In this case standard titanium implants have been contoured and sized to fit the specific reconstruction.