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DOI: 10.1055/s-0034-1544124
Impact of Dynamic Endoscopy and Bimanual-Binarial Dissection in Endoscopic Endonasal Surgery Training: A Laboratory Investigation
Publication History
22 October 2014
25 November 2014
Publication Date:
13 May 2015 (online)
![](https://www.thieme-connect.de/media/jnlsb/201505/lookinside/thumbnails/10-1055-s-0034-1544124_140113-1.jpg)
Abstract
Objective The lack of a standard technique may be a relevant issue in teaching endoscopic endonasal surgery (EES) to novice surgeons. The objective of this article is to compare different endoscope positioning and microsurgical dissection techniques in EES training.
Methods A comparative trial was designed to evaluate three techniques: group A, one surgeon performing binarial two-hands dissection using an endoscope holder (rigid endoscopy); group B, two surgeons performing a combined binarial two- and three-handed dissection with one surgeon guiding the endoscope (dynamic endoscopy); and group C, two surgeons performing a binarial two-hands dissection with one surgeon dedicated to endoscope positioning and the other dedicated to a two-handed dissection. Trainees were randomly assigned to these groups and oriented to complete surgical tasks in a validated training model for EES. A global rating scale, and a specific-task checklist for EES were used to assess surgical skills.
Results The mean scores of the global rating scale and the specific-task checklist were higher (p = 0.001 and 0.002, respectively) for group C, reflecting the positive impact of dynamic endoscopy and bimanual dissection on training performance.
Conclusions We found that dynamic endoscopic and bimanual-binarial microdissection techniques had a significant positive impact on EES training.
Keywords
endoscopic endonasal surgery - surgical technique - surgical training - performance assessmentNote
Portions of this work were presented at the 24th Annual North American Skull Base Society Meeting in San Diego, California, on February 15, 2014.
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