SARCOMA DIVISION Development of Computer Assisted Surgery for Orthopaedic Oncology Applications: Preliminary report of the first American Series David Cheong, Dylan Nugent, Eric R Henderson, German Marulanda, G Douglas Letson
SARCOMA DIVISION Disclosure: No financial support was received in the production of this presentation, data being presented, surgical procedures, or instrumentation
SARCOMA DIVISION Navigation
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Computer Navigated Oncology Surgeries since Distal Femur Replacement 3Internal Hemi-pelvectomy 2Proximal Tibia Replacement 1Proximal Femur Replacement 6Sacro-iliac Instrumentation Primary Malignant Bones Tumors Multiple Myeloma Benign Aggressive Bone Tumors Aggressive Soft Tissue Sarcoma Metastatic Disease
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Image Based
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Navigated Cautery Pencil
SARCOMA DIVISION Navigated Osteotome
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Navigated Hemi-pelvectomy Plane Planning
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Accuracy of Resection
SARCOMA DIVISION Limb Length
SARCOMA DIVISION Navigated Proximal Femur
SARCOMA DIVISION Finding anatomical structures for optimum screw placement Replicate screw dimensions – Head size – Length – Diameter Set head point and screw axis Multiple screw plans Screw Planning
SARCOMA DIVISION Screw Planning
SARCOMA DIVISION Navigated Screws
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Potential!!! Accuracy of Resection – Navigated instrumentation – Blending real time imaging Accuracy of Reconstruction – Re-establishing the joint line – Reducing limb length discrepancies Intra-operative Execution of the Pre-operative plan
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