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Updated: Oct 25, 2025
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Published on: September 9, 2020
Computer-Navigated Bone Cutting in the Resection of a Pelvic Bone Tumor and Reconstruction with a Massive Bone
Pierre-Louis Docquier1, Olivier Cartiaux2, Laurent Paul1
1Université Catholique de Louvain, Center for Research in Computer Assisted and Robotic Surgery, Institute of Experimental and Clinical Research, 53 Avenue Mounier (Tour Pasteur +4), B-1200 Brussels, Belgium.
Introduction:
We present here a surgical technique using a navigation system and an oscillating saw for the resection of a pelvic bone tumor combined with an allograft reconstruction.
Step 1 Preoperative Planning:
The surgeon and radiologist together delineate the tumor on each magnetic resonance imaging (MRI) slice; then the surgeon defines target planes for tumor resection and transfers them to the allograft.
Step 2 Patient Positioning And Surgical Exposure:
With the patient in the lateral decubitus position, combine ilioinguinal with iliocrural and obturator surgical approaches to expose the ilium.
Step 3 Navigated Tumor Resection:
Perform the osteotomies using the navigation system to guide the saw blade, following predefined target planes; perform a biopsy.
Step 4 Navigated Allograft Cutting:
Perform the osteotomies using the navigating saw, following the same target planes as used for the tumor resection.
Step 5 Pelvic Reconstruction:
Fix the graft and cement a femoral stem in place; then reinsert all detached tendons and elevated muscles.
Results & Preop/Postop Images:
Editor's note: This technique is based on preliminary work that has not been presented in a peer-reviewed case series publication.
What To Watch For:
IndicationsContraindicationsPitfalls & Challenges.
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