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Mixed Reality-Guided System for Patient-Specific Implants in Orthognathic Surgery
Haoning Li1, Liwei Huang1, Vicky Yau2
1Resident, State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.
Summary
This study introduces a novel mixed reality technique for orthognathic surgery, improving patient-specific implant accuracy. This cutting-guide-free method enhances surgical precision and efficiency in maxillary positioning.
Area of Science:
- Oral and Maxillofacial Surgery
- Medical Engineering
- Computer-Aided Surgery
Background:
- Patient-specific implants (PSI) improve precision in orthognathic surgery.
- Current methods often rely on cutting guides, adding complexity and time.
- Accurate maxillary positioning is crucial for functional and aesthetic outcomes.
Purpose of the Study:
- To present a mixed reality-assisted technique for PSI in orthognathic surgery.
- To eliminate the need for traditional cutting guide fabrication.
- To enhance the efficiency and accuracy of maxillary positioning.
Main Methods:
- Utilized a mixed reality system to dynamically transfer drilling holes and osteotomy lines.
- Employed patient-specific implants (PSI) for maxillary positioning.
- Performed postoperative computed tomography (CT) analysis to assess accuracy.
Main Results:
- Achieved clinically acceptable maxillary deviations below 1.2 mm.
- Demonstrated a cutting guide-free approach for maxillary positioning.
- Reported enhanced surgical accuracy, workflow efficiency, and intraoperative adaptability.
Conclusions:
- Mixed reality guidance offers a novel, cutting guide-free method for orthognathic surgery.
- This technique improves surgical accuracy and efficiency in maxillary positioning.
- The approach enhances intraoperative adaptability and precision using PSI.
