Fractured zygoma and virtual fracture reduction

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1

Hello

I am a new slicer user. Using CT data, I am looking for some guidance on how to effectively segment a complex zygomaticomaxillary complex fracture.

I then wish to virtually manipulate the respective fragments into a desired post-op position and export all fragments as one file. This file will then be 3D printed.

While I have seen videos on YouTube and a handful of discussions in this forum, but they haven’t really documented the process in a way that I can understand.

Can someone point me/guide me through the process?

Many thanks

2

I am not sure if this is what you are looking for but here are pointers:

  1. Assuming this is clinical data, you can use the DICOM module to import the CT scan into Slicer as a volume.
  2. You can then use the Segment Editor to segment the individual bones from this volume
  3. You can then use the Segmentations module to export these segments into individual 3D models.
  4. You can put every segmented model under its own transform so that you can manipulate their spatial relationship independently and realign them.
  5. Once you have reconfigured the fractured bones, you can “harden” transforms so transformations are fixed.
  6. I am not very knowledgeable in 3D printing, but my understanding it will require a single model. If that’s really the case you can tend use MergeModels modules to stitch these individual models into a single model.
  7. Export the stitched model as an STL file for printing.

This the rough steps. The rest is learning to use the software. You can look at the Slicer’s official documentation at https://slicer.readthedocs.io