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Construct validity of the LapSim virtual reality laparoscopic simulator within a urology residency program
Evan Kovac1, Raed A Azhar, Adrienne Quirouet
1Division of Urology, Department of Surgery, McGill University Health Center, Montreal, Quebec, Canada.
Summary
The LapSim laparoscopic surgical simulator did not demonstrate construct validity in urology residents. Performance did not improve over time, and there was no difference between junior and senior residents.
Area of Science:
- Medical Simulation
- Surgical Education
- Urology Training
Background:
- Laparoscopic surgical simulators are increasingly used in surgical training.
- Assessing the construct validity of simulators is crucial for effective training programs.
Purpose of the Study:
- To evaluate the construct validity of the LapSim laparoscopic surgical simulator.
- To determine if the simulator can differentiate between skill levels in a urology residency program.
Main Methods:
- Fifteen urology residents participated in six testing sessions over one year.
- Performance was assessed on three skill tasks using parameters like time, path length, and tissue damage.
- Residents were grouped into junior (PGY 1-2) and senior (PGY 3-5) levels.
Main Results:
- No significant improvement in performance was observed across testing sessions.
- No significant performance difference was found between junior and senior resident groups.
Conclusions:
- The LapSim simulator did not demonstrate construct validity for the measured parameters in this urology residency context.
- Further validation is needed before widespread adoption in urology training.
