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Orbital fracture surgery simulation using SlicerSOFA

Key Investigators

Chi Zhang (Texas A&M University College of Dentistry, USA)
Rafael Palomar (NTNU / OUH, Norway)
Paul Baksic (INRIA, France)
Steve Pieper (Isomics Inc., USA)

Project Description

Using SlicerSOFA to simulate orbital fracture repair using titanium plate.

Virtual planning in oral and maxillofacial surgery (OMFS) is primary based on static models using proprietary software for implant customization design and surgical navigation. Soft tissue behaviors were usally unknown. However, physics simulation has not been widely adopted in OMFS. An important reason is that simulation is less scalable and requires heavy model preparation and engineering. SlicerSOFA can address this issue by integration Slicer and SOFA.

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Objective

Create a demo scene for future development and gathering feedback from surgeons
Plan for a grant proposal resubmission.

Approach and Plan

Work on two separate scenes:

1. Soft tissue retraction:

Goal: move the retractor to create a gap sufficient to insert the plate
Challenges: collision in a confined space; proper mechanical models of different tissue types

2. Plate bending and fixation

Meshed plate is geometrically complicated; using shell model as a proxy

3. Run a demo scene in SlicerSOFA

How to integrate Slicer methods to facilitate mechanical model preparation and interaction, such as controller

4. Planning for benchmarking and validation: what is considered as “success” at this stage?

Progress and Next Steps

Describe specific steps you have actually done.

Illustrations

No response

Background and References

Orbital fracture repair introduction: https://surgeryreference.aofoundation.org/cmf/trauma/midface/orbit-floor/reconstruction#general-considerations