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Customized Polymethylmethacrylate Cranioplasty Implants Using 3-Dimensional Printed Polylactic Acid Molds: Technical
Joe Abdel Hay1, Tarek Smayra2, Ronald Moussa1
1Department of Neurosurgery, Hôtel-Dieu de France Hospital, Saint-Joseph University, Beirut, Lebanon.
World Neurosurgery
|May 16, 2017
Summary
This study presents a new, cost-effective method for creating customized polymethylmethacrylate (PMMA) cranioplasty implants using 3D-printed molds. This technique offers excellent cosmetic and functional outcomes for cranial defect reconstruction.
Area of Science:
- Neurosurgery
- Biomaterials Engineering
- 3D Printing Technology
Background:
- Customized cranioplasty implants improve anatomical accuracy but are often expensive.
- Traditional methods for creating patient-specific implants can be costly and time-consuming.
Observation:
- A novel technique utilizes low-cost polylactic acid 3D-printed molds to fabricate customized polymethylmethacrylate (PMMA) implants.
- Computed tomography (CT) scans were used to generate 3D models of cranial defects for mold creation.
Findings:
- Both patients achieved excellent cosmetic results with symmetrical cranial contours post-reconstruction.
- No neurological or infectious complications were observed during the 6-month follow-up period.
Implications:
- This 3D printing-based approach offers a cost-effective solution for delayed cranial defect reconstruction.
- The technique demonstrates potential for wider adoption in neurosurgical applications requiring custom implants.

