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Error Analysis of Robot-Assisted Orthognathic Surgery.
Jinyang Wu1, Wenyu Hui1, Shihang Chen2
1Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology.
Robot-assisted orthognathic surgery accurately transfers virtual surgical plans to the operating room. This innovative approach demonstrates feasibility and precision in osteotomy for correcting dentomaxillofacial deformities.
Area of Science:
- Robotics in Surgery
- Cranio-Maxillofacial Surgery
- Surgical Planning
Background:
- Dentomaxillofacial deformities require effective correction methods.
- Orthognathic surgery is a key treatment for these conditions.
- Integrating robotic assistance offers potential advancements in surgical precision.
Purpose of the Study:
- To introduce robot-assisted orthognathic surgery.
- To demonstrate the accuracy and feasibility of robot-assisted osteotomy.
- To evaluate the transfer of preoperative virtual surgical planning (VSP) to intraoperative execution.
Main Methods:
- Development of a craniomaxillofacial (CMF) robot system with a 6-DOF robotic arm and custom end-effector.
- Osteotomy performed using a reciprocating saw integrated into the end-effector.
- Comparison of robot-assisted automatic osteotomy with navigation-assisted manual osteotomy on skull models.
Main Results:
- Successful completion of all osteotomies in both control and experimental groups.
- Overall osteotomy errors were comparable: 1.07 ± 0.19 mm (control) and 1.12 ± 0.20 mm (experimental).
- No significant difference in osteotomy errors between robot-assisted automatic and navigation-assisted manual techniques (P=0.353).
Conclusions:
- Robot-assisted orthognathic surgery successfully executes osteotomies based on preoperative VSP.
- The system demonstrates good accuracy and feasibility in translating virtual plans to surgical reality.
- This technology holds promise for enhancing precision in corrective jaw surgery.
