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Computer aided tumor resection in the pelvis.

Christian Krettek¹, Jens Geerling, Leonard Bastian

¹Department of Traumatology, Hannover Medical School, 30625 Hannover, Germany. krettek@compuserve.com

|June 9, 2004

Summary

Computer aided orthopedic surgery (CAOS) enhances pelvic tumor resection accuracy. This navigation technology facilitated complete tumor removal with clear margins in two complex cases, improving surgical outcomes.

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Area of Science:

Oncology
Orthopedic Surgery
Medical Imaging

Background:

Pelvic tumor surgery is challenging due to complex anatomy.
Preoperative imaging (CT/MRI) lacks intraoperative utility.
Computer Aided Orthopedic Surgery (CAOS) offers potential for enhanced precision.

Observation:

Two patients with pelvic tumors underwent surgical resection.
One patient had a recurrent sacral chordoma; the other, a periacetabular chondrosarcoma.
CAOS navigation was employed for both resections.

Findings:

CAOS enabled precise resection of the sacral chordoma.
Navigation guided the fitting of a custom hemipelvis prosthesis for the chondrosarcoma.
Both patients achieved complete tumor resection with tumor-free margins.

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Implications:

Navigation technology shows promise for improving pelvic tumor surgery.
CAOS can enhance intraoperative accuracy and enable complex reconstructions.
This approach may lead to better oncological and functional outcomes in pelvic tumor management.