Malar symmetrisation using patient-specific onlay implant

Based on the high-resolution CT scan of the patient, we reconstructed the anatomy in 3D. This first step is called segmentation and is performed by selecting the Hounsfield units (level of grey) corresponding to bone on the CT scan.

The aim of the surgery for this patient was to restore their malar symmetry.

CMF Case Study 5 1




A mirror is first created (in red).

The mirror is positioned to fit the infra orbital rim, the lateral orbital rim, and the zygomatic process as much as possible.








The implant is designed based on the mirror. It fits perfecty the anatomy and is designed based on the surgeon’s requirement as well as the surgical approach and the type of screws used.





The shape of the implant enabled easy positioning through a transoral approach.

“It went really well. Fitted perfectly.” was the feedback we received!

CMF Case Study 5 2