Abstract
Background
The benefits of haptic feedback in laparoscopic surgery training simulators is a topic of debate in the literature. It is hypothesized that novice surgeons may not benefit from the haptic information, especially during the initial phase of learning a new task. Therefore, provision of haptic feedback to novice trainees in the early stage of training may be distracting and detrimental to learning. A controlled experiment was conducted to examine the effect of haptic feedback on the learning curve of a complex laparoscopic suturing and knot-tying task.
Methods
The ProMIS and the MIST-VR surgical simulators were used to represent conditions with and without haptic feedback, respectively. A total of 20 novice subjects (10 per simulator) were trained to perform suturing and knot-tying and practiced the tasks in 18 sessions of 1 h each.
Results
At the end of the 3-week training period, the subjects performed equally fast but more consistently with haptics (ProMIS) than without haptics (MIST-VR). The subjects showed a slightly higher learning rate and reached the first plateau of the learning curve earlier with haptic feedback.
Conclusion
In general, learning with haptic feedback was significantly better than learning without it for a laparoscopic suturing and knot-tying task, but only during the first 5 h of training. Haptic feedback may not be warranted in laparoscopic surgical trainers. The benefits of a shorter time to the first performance plateau and more consistent initial performance should be balanced with the cost of implementing haptic feedback in surgical simulators.
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Acknowledgments
This work was supported in part by a National Science Foundation Career Award (IIS-0238284) and a Society of American Gastrointestinal Endoscopic Surgeons (SAGES) Research Grant Award.
Disclosures
Dr. M. Zhou, and Ms. S. Tse, have no conflicts of interest or financial ties to disclose. Dr. A. Derevianko has consulted with Elsevier, Inc. and the Medical Education Advisory Board. Dr. D. B. Jones has consulted with Stryker Endoscopy and Olympus; has performed research with Allergan, Coviden; and has received institutional training grants from Covidien and Ethicon Endosurgery. He has no conflicts of interest with this manuscript. Dr. S. D. Schwaitzberg has consulted for MMDI, Endocore, and Olympus, and has served on the advisory committee for MITI, Stryker, Surgiquest, Cambridge Endo, Neatstitch, and Acuity Bio. He has no conflicts of interest with this manuscript. Dr. C. G. L. Cao has consulted for St. Jude Medical. She has no conflicts of interest with this manuscript.
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Zhou, M., Tse, S., Derevianko, A. et al. Effect of haptic feedback in laparoscopic surgery skill acquisition. Surg Endosc 26, 1128–1134 (2012). https://doi.org/10.1007/s00464-011-2011-8
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DOI: https://doi.org/10.1007/s00464-011-2011-8