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Three-Dimensional Repositioning of the Maxilla in Orthognathic Surgery Using Patient-Specific Titanium Plates: A Case
Seth Greenberg1, Daniel Buchbinder2, Michael D Turner3
1Chief Resident, Division of Oral and Maxillofacial Surgery, Department of Otolaryngology, Head and Neck Surgery, Mount Sinai West / Downtown and Jacobi Medical Center, New York, NY.
Summary
Patient-specific cutting guides and 3D-printed plates accurately reposition the maxilla during orthognathic surgery. This technology ensures precise 3D positioning, aligning the patient's anatomy with the surgical plan for successful outcomes.
Area of Science:
- Oral and Maxillofacial Surgery
- Orthodontics
- Biomedical Engineering
Background:
- Accurate intraoperative execution of the surgical plan is crucial for successful orthognathic surgery.
- Patient-specific cutting guides and 3D-printed plates offer a potential solution for enhancing surgical precision.
Observation:
- A retrospective case series evaluated 10 patients undergoing bimaxillary orthognathic surgery with patient-specific guides and 3D-printed plates for Le Fort I osteotomy.
- Postoperative cone-beam computed tomography (CBCT) was used to compare the actual maxillary position to the virtually planned position at 10 landmarks in 3D.
Findings:
- The median absolute discrepancies between planned and postoperative maxillary positions were 0.638 mm (x-axis), 0.798 mm (y-axis), and 0.481 mm (z-axis).
- No significant differences were found in discrepancies across the three axes, indicating consistent accuracy.
Implications:
- Patient-specific cutting guides and 3D-printed plates facilitate accurate 3D repositioning of the maxilla during orthognathic surgery.
- This technology enhances the predictability and success rate of bimaxillary orthognathic procedures.
