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Updated: Jun 21, 2026

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Three-Dimensional Reconstruction of Orbital Fractures
Published on: May 16, 2025
Individual replacement of the frontal bone defect: case report.
1Charles University in Prague, First Faculty of Medicine and General Faculty Hospital, Stomatology Clinic, Prague, Czech Republic.
Prague Medical Report
|July 14, 2009
Summary
Custom implants precisely reconstruct large skull bone defects, restoring function and aesthetics. Advanced 3D modeling and CNC machining ensure accurate, personalized skeletal replacements.
Area of Science:
- Craniofacial surgery
- Biomaterials engineering
- Medical device manufacturing
Background:
- Reconstructing large skeletal defects requires patient-specific solutions beyond standard implants.
- Large frontal bone defects pose challenges for restoring both function and facial aesthetics.
Observation:
- A 30-year-old female patient presented with a significant frontal bone defect (7x3x2 cm) resulting from polytrauma.
- The defect's size and nature precluded the use of off-the-shelf augmentation materials.
Findings:
- A custom implant was designed using 3D models derived from CT scans.
- The implant was fabricated from ultra-high-molecular-weight polyethylene (UHMWPE) via CNC machining after 3D printed verification.
- This approach enabled precise reconstruction of the large frontal bone defect.
Implications:
- Custom implants offer a viable solution for complex craniofacial reconstructions.
- Advanced technologies like 3D printing, CT scanning, and CNC machining are crucial for fabricating accurate, individualized implants.
- Successful skeletal reconstruction relies on the precision of custom implant design and fabrication.
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Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the procedure...
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