Abstract
Fitting of fixation plates on fractured bone can be preoperatively planned and evaluated in 3D virtual environment using virtual reality technology. However, conventional systems usually employ 2D mouse and virtual trackball as the user interface, which makes the process inconvenient and inefficient. In the paper, a preoperative planning system equipped with 3D haptic user interface is proposed to allow users to manipulate the virtual fixation plate intuitively to determine the optimal position for placement on distal medial tibia. The system provides interactive feedback forces and visual guidance based on the geometric requirements. Creation of 3D models from medical imaging data, collision detection, dynamics simulation and haptic rendering are discussed. The system was evaluated by 22 subjects. Results show that the time to achieve optimal placement using the proposed system was shorter than that by using 2D mouse and virtual trackball, and the satisfaction rating was also higher. The system shows potential to facilitate the process of fitting fixation plates on fractured bones as well as interactive fixation plate design.
Original language | English |
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Pages (from-to) | 145-153 |
Number of pages | 9 |
Journal | Informatics in Medicine Unlocked |
Volume | 9 |
DOIs | |
Publication status | Published - 1 Jan 2017 |
Keywords
- Fit assessment
- Fixation plate
- Fracture fixation
- Haptics
- Orthopaedics
- Virtual reality
ASJC Scopus subject areas
- Health Informatics