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Designing CAD/CAM Surgical Guides for Maxillary Reconstruction Using an In-house Approach
Published on: August 24, 2018
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Guided Genioplasty: Comparison between Conventional Technique and Customized Guided Surgery.
Raúl Antúnez-Conde Hidalgo1, José Luis Silva Canal1, Carlos Navarro Cuéllar2,3
1Maxillofacial Surgery Department, Hospital Universitario Ruber Juan Bravo, 28006 Madrid, Spain.
Journal of Personalized Medicine
|December 23, 2023
Summary
Virtual surgical planning (VSP) with custom guides and plates significantly improves genioplasty accuracy, especially for chin asymmetry. This advanced technique reduces operation time and surgical complications compared to conventional methods.
Area of Science:
- Maxillofacial Surgery
- Plastic Surgery
- Biomedical Engineering
Background:
- Genioplasty is a common maxillofacial surgery procedure.
- Advances in reconstructive surgery aim for reduced morbidity and predictable outcomes.
- This study compares conventional genioplasty with techniques utilizing virtual surgical planning (VSP).
Purpose of the Study:
- To compare the outcomes of conventional genioplasty with genioplasty performed using VSP, CAD-CAM cutting guides, and patient-specific plates.
- To evaluate the accuracy, operative time, and complication rates of both surgical approaches.
Main Methods:
- A descriptive observational study involving 43 patients.
- Group 1: 18 patients underwent conventional genioplasty.
- Group 2: 25 patients underwent genioplasty using VSP, CAD-CAM guides, STL models, and custom titanium plates.
Main Results:
- Mean operative time was significantly lower in the custom treatment group (42.24 min) compared to the conventional group (60.06 min).
- Accuracy for advancement/retrusion was comparable, but VSP with custom guides was superior for correcting chin rotation due to asymmetry (p < 0.01).
- Surgical complications decreased in the VSP and custom treatment group; hospital stay was similar.
Conclusions:
- Multi-stage implementation of VSP with CAD-CAM guides, STL models, and patient-specific plates enhances genioplasty accuracy.
- This approach is particularly beneficial for correcting chin asymmetry.
- The VSP and custom plate technique reduces operative time and potential surgical complications.

