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Validation of a Full-Immersion Simulation Platform for Percutaneous Nephrolithotomy Using Three-Dimensional Printing
Ahmed Ghazi1, Timothy Campbell2, Rachel Melnyk1
11 Department of Urology, University of Rochester Medical Center , Rochester, New York.
Journal of Endourology
|October 20, 2017
Summary
This study validates a high-fidelity inanimate model for percutaneous nephrolithotomy (PCNL) simulation. The PCNL simulator effectively trains surgical skills and evaluates performance before hands-on patient procedures.
Area of Science:
- Medical Simulation
- Surgical Education
- Urology
Background:
- Surgical training is impacted by resident hour restrictions and patient safety focus.
- Percutaneous nephrolithotomy (PCNL) has a steep learning curve, posing challenges for resident training.
- A high-fidelity, inanimate simulation model is needed for safe and effective PCNL training.
Purpose of the Study:
- To validate a high-fidelity, inanimate PCNL model within a full-immersion simulation environment.
- To assess the model's face, content, and construct validity for surgical training.
Main Methods:
- Anatomically correct PCNL models were created using polyvinyl alcohol hydrogels and 3D-printed molds.
- Experts and novices performed simulated PCNL procedures.
- Face, content, and construct validity were evaluated using model ratings and performance metrics.
Main Results:
- The PCNL model demonstrated excellent face (4.5/5.0) and content (4.6/5.0) validity.
- Significant differences in fluoroscopy time, access attempts, and needle repositioning were observed between novices and experts.
- Experts achieved better stone clearance and fewer complications.
Conclusions:
- The inanimate PCNL trainer is validated for face, content, and construct validity.
- The simulation accurately assesses performance differences between surgical trainees of varying experience levels.
- This simulation offers a comprehensive tool for developing and evaluating PCNL skills prior to clinical application.
