Medical Technology
3D-Printed Patient-Specific Guides for Pelvic Tumour Resection
In-house printed cutting guides used to improve margin accuracy in periacetabular resections, produced within the hospital's own workflow.
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Specialty
Orthopedic Oncology
Location
Chennai, Tamil Nadu
Published
30 Jul 2025
Research type
Case Series
Abstract
Demo abstract. Segmentation from staging CT was used to print sterilisable guides. Achieved margins were compared with the planned osteotomy planes on post-resection imaging.
Description
The workflow was deliberately kept inside the hospital: segmentation by the operating surgeon, printing in a biomedical engineering unit, sterilisation by standard cycle.
Guides were designed with generous bony contact and a single unambiguous seating position.
Innovation / discovery
Bringing the print workflow in-house reduced planning-to-surgery time compared with outsourced guide manufacture.
Surgical / procedural method
CT segmentation, guide design, resin printing, autoclave sterilisation, intra-operative seating verification before osteotomy.
Research findings
- Deviation from planned osteotomy planes remained small across the demo series.
- Guide seating was the main intra-operative time cost and improved with experience.
- All resections in the series achieved the planned margin status.
Attached documents
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Workflow protocol
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Segmentation dataset
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