Evaluation of a virtual-reality-based simulator using passive haptic feedback for knee arthroscopy.

Area of Science:

• Medical Simulation
• Surgical Training
• Virtual Reality

Background:

• Knee arthroscopy requires specialized skills and extensive training.
• Traditional training methods may have limitations in providing consistent, safe, and repeatable practice.
• Virtual reality (VR) simulators offer a promising avenue for enhancing surgical education.

Purpose of the Study:

• To determine the face validity and construct validity of a novel VR-based simulator for knee arthroscopy.
• To assess the simulator's realism, training capacity, and ability to differentiate skill levels.

Main Methods:

• A passive haptics VR simulator was evaluated by 68 participants (novices, intermediates, experts).
• Face validity was assessed via questionnaires on realism and training utility (7-point Likert scale).
• Construct validity was tested by comparing performance metrics between novices and experts in two exercises.

Main Results:

• High face validity scores were achieved: overall realism (mean 5.5) and training capacity (mean 5.9).
• Experts demonstrated significantly faster procedure times and shorter camera path lengths compared to novices.
• The simulator was perceived as a useful tool for diagnostic and therapeutic knee arthroscopy training.

Conclusions:

• The VR simulator exhibits high realism and effectively distinguishes between varying levels of arthroscopic expertise.
• It serves as a valuable tool for procedural training, complementing traditional knee arthroscopy education.
• Further enhancements for therapeutic arthroscopy are recommended, but the technology shows significant potential.