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Published in:

01-06-2014

Learning from visual force feedback in box trainers: tissue manipulation in laparoscopic surgery

Authors: Tim Horeman, Freek van Delft, Mathijs D. Blikkendaal, Jenny Dankelman, John J. van den Dobbelsteen, Frank-Willem Jansen

Published in: Surgical Endoscopy | Issue 6/2014

Abstract

Background

Currently, task time and errors are often used as performance parameters in laparoscopic training. Training with the focus on task time improvement alone results in fast, but possibly less controlled, instrument movements and therefore suboptimal tissue handling skills.

Methods

Twenty-five medical students were randomly assigned in two groups. Both groups performed a tissue manipulation task six times. During this training session, the time feedback group (n = 13) received real-time visual feedback of the task time. The force feedback group (n = 12) received real-time visual feedback of the tissue manipulation force. After the training sessions, participants in both groups performed an entirely different task without visual feedback. Task time, force, and motion parameters of this posttest were used to compare the technical skills of the medical students.

Results

The training data of the group that received force feedback showed a learning curve for the mean and max absolute force, max force area, force volume, task time, and path length of both instruments. The data from the group that received time feedback showed a learning curve for the max force, task time, and path length of both instruments. In the posttest, the parameters of mean absolute force (p = 0.039), max force (p = 0.041), and force volume (p = 0.009) showed a significant difference in favor of the group that received force feedback.

Conclusions

The learning curves and the posttest indicate that training with visual force feedback improves tissue handling skills with no negative effect on the task time and instrument motions. Conventional laparoscopic training with visual time feedback improves instrument motion and task time, but it does not improve tissue manipulation skills.

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Title: Learning from visual force feedback in box trainers: tissue manipulation in laparoscopic surgery
Authors: Tim Horeman
Freek van Delft
Mathijs D. Blikkendaal
Jenny Dankelman
John J. van den Dobbelsteen
Frank-Willem Jansen
Publication date: 01-06-2014
Publisher: Springer US
Published in: Surgical Endoscopy / Issue 6/2014
Print ISSN: 0930-2794
Electronic ISSN: 1432-2218
DOI: https://doi.org/10.1007/s00464-014-3425-x

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

Learning from visual force feedback in box trainers: tissue manipulation in laparoscopic surgery

Abstract

Background

Methods

Results

Conclusions

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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