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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
SARCOMA DIVISION
SARCOMA DIVISION
Computer Navigated Oncology Surgeries since 2008
6 Distal Femur Replacement
3 Internal Hemi-pelvectomy
2 Proximal Tibia Replacement
1 Proximal Femur Replacement
6 Sacro-iliac Instrumentation
•Primary Malignant Bones Tumors•Multiple Myeloma •Benign Aggressive Bone Tumors• Aggressive Soft Tissue Sarcoma•Metastatic Disease
SARCOMA DIVISION
SARCOMA DIVISION
Image Based
SARCOMA DIVISION
SARCOMA DIVISION
Navigated Cautery Pencil
SARCOMA DIVISION
Navigated Osteotome
SARCOMA DIVISION
SARCOMA DIVISION
Navigated Hemi-pelvectomyPlane Planning
SARCOMA DIVISION
SARCOMA DIVISION
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
SARCOMA DIVISION
SARCOMA DIVISION
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
SARCOMA DIVISION
SARCOMA DIVISION