Mobile Navigation

testtest--

Validation of a virtual reality-based simulator for shoulder arthroscopy

 

Stefan Rahm, Marco Germann, Andreas Hingsammer, Karl Wieser, Christian Gerber

 
Knee Surgery, Sports Traumatology, Arthroscopy
pp 1-8
First online: 09 February 2016

Purpose

This study was to determine face and construct validity of a new virtual reality-based shoulder arthroscopy simulator which uses passive haptic feedback.

Methods

Fifty-one participants including 25 novices (100 shoulder arthroscopies) completed two tests: for assessment of face validity, a questionnaire was filled out concerning quality of simulated reality and training potential using a 7-point Likert scale (range 1–7). Construct validity was tested by comparing simulator metrics (operation time in seconds, camera and grasper pathway in centimetre and grasper openings) between novices and experts test results.

Results

Overall simulated reality was rated high with a median value of 5.5 (range 2.8–7) points. Training capacity scored a median value of 5.8 (range 3–7) points. Experts were significantly faster in the diagnostic test with a median of 91 (range 37–208) s than novices with 177 (range 81–383) s (p < 0.0001) and in the therapeutic test 102 (range 58–283) s versus 229 (range 114–399) s (p < 0.0001). Similar results were seen in the other metric values except in the camera pathway in the therapeutic test.

Conclusion

The tested simulator achieved high scores in terms of realism and training capability. It reliably discriminated between novices and experts. Further improvements of the simulator, especially in the field of therapeutic arthroscopy, might improve its value as training and assessment tool for shoulder arthroscopy skills.

Level of evidence

II.

Keywords

Education Simulation Virtual reality Shoulder arthroscopy Orthopaedic surgery Passive haptics

Would you like to access the study?