# Ankle Osteotomy

**URL:** <https://discourse.slicer.org/t/ankle-osteotomy/42143>\
**Category:** Support\
**Created:** [March 14, 2025, 7:04pm UTC](https://discourse.slicer.org/t/ankle-osteotomy/42143 "2025-03-14T19:04:37Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![JuMaLe](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jumale/32/15996_2.png) [@JuMaLe](https://discourse.slicer.org/u/JuMaLe)\
**Post date:** [March 14, 2025, 7:04pm UTC](https://discourse.slicer.org/t/ankle-osteotomy/42143/1 "2025-03-14T19:04:37Z")

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Hello!  
I’m looking for a tool or a set of tools to approach osteotomy planning. The Osteotomy Planner module appears to be useless for this.

Thanks a lot.

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [March 15, 2025, 3:37pm UTC](https://discourse.slicer.org/t/ankle-osteotomy/42143/2 "2025-03-15T15:37:46Z")

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Slicer has been improved a lot since the Osteotomy Planner module was introduced and probably you can fulfill most needs only using Slicer core modules.

For example, you can place a markup plane using Markups module, and then simulate bone cuts using `Dynamic modeler` module.

If you describe what you need eactly then we can give further suggestions.

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**Author:** ![JuMaLe](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jumale/32/15996_2.png) [@JuMaLe](https://discourse.slicer.org/u/JuMaLe)\
**Post date:** [March 15, 2025, 4:39pm UTC](https://discourse.slicer.org/t/ankle-osteotomy/42143/3 "2025-03-15T16:39:02Z")

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I would like to plan a surgery and create surgical guides for deformity correction. For the first step, Dynamic Modeler’s tools allow me to create all the references I need to determine the CORA or another required reference, but I guess I need to set the lines and planes manually. What about the second step?

Thanks for your answer!

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [March 17, 2025, 8:46pm UTC](https://discourse.slicer.org/t/ankle-osteotomy/42143/4 "2025-03-17T20:46:28Z")

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You can validate your workflow using general-purpose manual tools. Then you can gradually automate your workflow by Python scripting. The [BoneReconstructionPlanner](https://github.com/SlicerIGT/SlicerBoneReconstructionPlanner?tab=readme-ov-file#bonereconstructionplanner) extension is a nice example that implements mandible fibula flap reconstruction planning workflow and automatic 3D-printable guide generation.