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Updated: May 21, 2026

Pioneering Patient-Specific Approaches for Precision Surgery Using Imaging and Virtual Reality
Published on: April 5, 2024
Can virtual reality simulation be used for advanced bariatric surgical training?
Trystan M Lewis1, Rajesh Aggarwal, Richard M Kwasnicki
1Department of Cancer and Surgery, St. Marys Hospital, Imperial College London, London, UK. t.lewis@imperial.ac.uk
Virtual reality (VR) simulation effectively trains novice surgeons in advanced laparoscopic bariatric skills, demonstrating construct and content validity. However, final technical skill assessment should still occur on cadaveric tissue.
Area of Science:
- Surgical Education
- Medical Simulation
- Bariatric Surgery
Background:
- Laparoscopic bariatric surgery is crucial for morbid obesity but technically demanding.
- Limited training opportunities exist for junior surgeons in these complex procedures.
- Virtual reality (VR) simulation offers a potential solution for enhancing surgical training.
Purpose of the Study:
- To assess the effectiveness of VR simulation as an adjunct for training and evaluating laparoscopic bariatric technical skills.
- To validate a VR bariatric surgery module for surgical training.
Main Methods:
- Twenty bariatric surgeons (novice, intermediate, experienced) performed a jejuno-jejunostomy on cadaveric tissue and a VR simulator.
- Surgical performance was evaluated using Global Rating Scales (GRS) and Procedure-Specific Video Rating Scales (PSRS).
- Surgeons provided feedback on the VR simulator's appropriateness for training.
Main Results:
- The VR bariatric module showed construct validity, with significant performance differences between novice and experienced surgeons (P=.017 for GRS, P=.003 for PSRS).
- Surgeons found the VR module useful and appropriate for training (mean Likert score 4.45/7).
- High recommendation for VR simulation in bariatric training was reported (mean Likert score 5/7).
Conclusions:
- The VR bariatric module demonstrates construct and content validity, proving effective for training advanced bariatric technical skills.
- VR simulation is a valuable tool for surgeons beginning their bariatric training.
- Technical skill assessment should continue to be performed on cadaveric tissue.
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