Complex Orbital Implant

Case information

A 30-year-old male was diagnosed with a right orbital fracture that damaged the orbital floor supporting the eyeball. This resulted in a distorted eye position affecting the line of vision.

Visualisation

To understand the region of interest and the damage to the orbital floor, segmentation was done using CT data of 1 mm slice thickness.

Planning

After segmentation, the plan was to visualise and measure both orbital floors and proceed with reconstruction using a customised orbital implant.

• Eye volume was measured for the side
• The left healthy side was mirrored onto the right orbital region along with the volume measurements
• The implant was designed for the orbital floor using the measured data and placed on the orbital floor

3D printing

The surgical plan was turned into physical models to analyse the outcome once it was accepted and finalised. Models for pre-op, intermediate and post-op stages were printed, and the customised implant was printed in medical-grade titanium.

Conclusion

The use of a patient-specific implant and pre-planning of the surgical approach resulted in accurate restoration, reduced intra-operative time and a rapid recovery for the patient.