Related Experiment Video
Updated: Jan 30, 2026

Augmented Reality Navigation-Guided Core Decompression for Osteonecrosis of Femoral Head
Published on: April 12, 2022
Precision of a Novel Craniofacial Surgical Navigation System Based on Augmented Reality Using an Occlusal Splint as a
Taoran Jiang1, Ming Zhu2, Gang Chai1
1Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Zhizaoju Road 639, Shanghai, 200011, People's Republic of China.
Abstract:
The authors have developed a novel augmented reality (AR)-based navigation system (NS) for craniofacial surgery. In this study, the authors aimed to measure the precision of the system and further analyze the primary influencing factors of the precision. The drilling of holes into the mandibles of ten beagle dogs was performed under the AR-based NS, and the precision was analyzed by comparing the deviation between the preoperational plan and the surgical outcome. The AR-based NS was successfully applied to quickly and precisely drill holes in the mandibles. The mean positional deviation between the preoperative design and intraoperative navigation was 1.29 ± 0.70 mm for the entry points and 2.47 ± 0.66 mm for the end points, and the angular deviation was 1.32° ± 1.17°. The precision linearly decreased with the distance from the marker. In conclusion, the precision of this system could satisfy clinical requirements, and this system may serve as a helpful tool for improving the precision in craniofacial surgery.
Related Concept Videos
Uncertainty in Measurement: Accuracy and Precision
Accuracy and Precision
The Precise Definition of a Limit
Persuasion Strategies
Coping Strategies: Problem Focused
For example, consider a student who struggles to understand their...
Strategies of Self-Presentation II: Self-Verification

