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Validation of a virtual intracorporeal suturing simulator.
Yaoyu Fu1, Lora Cavuoto2, Di Qi3
1Department of Industrial and Systems Engineering, University at Buffalo, Buffalo, NY, 14260, USA.
Surgical Endoscopy
|October 19, 2018
Summary
This study evaluated a virtual reality laparoscopic simulator for intracorporeal suturing. The virtualbasic laparoscopic skill trainer (VBLaST-SS©) demonstrated face validity and comparable performance to traditional trainers, showing potential for surgical skill development.
Area of Science:
- Surgical Education
- Medical Simulation
- Laparoscopic Surgery
Background:
- Intracorporeal suturing is a critical yet challenging laparoscopic surgery skill.
- Traditional Fundamentals of Laparoscopic Surgery (FLS) trainer boxes are effective but costly and have subjective scoring.
- A virtual simulator, VBLaST-SS©, was developed to mimic FLS tasks.
Purpose of the Study:
- To evaluate the face and content validity of the VBLaST suturing simulator (VBLaST-SS©).
Main Methods:
- Twenty-five medical students and residents performed intracorporeal suturing on both VBLaST-SS© and a traditional FLS box trainer.
- Performance was assessed by time, needle deviation, and incision gap.
- Participants completed a 13-item questionnaire on simulator realism and utility.
Main Results:
- 80% of face validity questionnaire items averaged above 3.0/5.
- Comparable suturing completion times were observed between VBLaST-SS© and the box trainer (421s vs. 406s, p=0.620).
- Significant differences were found in incision gap (p=0.048) and needle deviation (p<0.001), with the box trainer showing better precision.
Conclusions:
- The VBLaST-SS© system exhibits face validity for laparoscopic suturing training.
- The simulator shows potential as a supplementary tool for developing surgical skills.
- Further validation may be needed to address performance differences in precision tasks.
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