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01-08-2019

Validation of a virtual intracorporeal suturing simulator

Authors: Yaoyu Fu, Lora Cavuoto, Di Qi, Karthikeyan Panneerselvam, Gene Yang, Venkata Sreekanth Artikala, Andinet Enquobahrie, Suvranu De, Steven D. Schwaitzberg

Published in: Surgical Endoscopy | Issue 8/2019

Abstract

Background

Intracorporeal suturing is one of the most important and difficult procedures in laparoscopic surgery. Practicing on a FLS trainer box is effective but requires large number of consumables, and the scoring is somewhat subjective and not immediate. A virtualbasic laparoscopic skill trainer (VBLaST©) was developed to simulate the five tasks of the FLS Trainer Box. The purpose of this study is to evaluate the face and content validity of the VBLaST suturing simulator (VBLaST-SS©).

Methods

Twenty-five medical students and residents completed an evaluation of the simulator. The participants were asked to perform the standard intracorporeal suturing task on both VBLaST-SS© and the traditional FLS box trainer. The performance scores on each system were calculated based on time (s), deviations to the black dots (mm), and incision gap (mm). The participants were then asked to finish a 13-item questionnaire with ratings from 1 (not realistic/useful) to 5 (very realistic/useful) regarding the face validity of the simulator. A Wilcoxon signed rank test was performed to identify differences in performance on the VBLaST-SS© compared to that of the traditional FLS box trainer.

Results

Three questions from the face validity questionnaire were excluded due to lack of response. Ratings to 8 of the remaining 10 questions (80%) averaged above 3.0 out of 5. Average intracorporeal suturing completion time on the VBLaST-SS© was 421 (SD = 168 s) seconds compared to 406 (175 s) seconds on the box trainer (p = 0.620). There was a significant difference between systems for the incision gap (p = 0.048). Deviation in needle insertion from the black dot was smaller for the box trainer than the virtual simulator (1.68 vs. 7.12, p < 0.001).

Conclusion

Participants showed comparable performance on the VBLaST-SS© and traditional box trainer. Overall, the VBLaST-SS© system showed face validity and has the potential to support training for the suturing skills.

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Title: Validation of a virtual intracorporeal suturing simulator
Authors: Yaoyu Fu
Lora Cavuoto
Di Qi
Karthikeyan Panneerselvam
Gene Yang
Venkata Sreekanth Artikala
Andinet Enquobahrie
Suvranu De
Steven D. Schwaitzberg
Publication date: 01-08-2019
Publisher: Springer US
Published in: Surgical Endoscopy / Issue 8/2019
Print ISSN: 0930-2794
Electronic ISSN: 1432-2218
DOI: https://doi.org/10.1007/s00464-018-6531-3

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Validation of a virtual intracorporeal suturing simulator

Abstract

Background

Methods

Results

Conclusion

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Abstract

Background

Methods

Results

Conclusion

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