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Title: Do experts practice what they profess?
Austin Authors: Zhou, Yun;Wijewickrema, Sudanthi;Ioannou, Ioanna;Bailey, James;Kennedy, Gregor;Nestel, Debra ;O'Leary, Stephen
Affiliation: Department of Surgery (Otolaryngology), University of Melbourne, Melbourne, Australia
Department of Computing and Information Systems, University of Melbourne, Melbourne, Australia
Melbourne Centre for the Study of Higher Education, University of Melbourne, Melbourne, Australia
Department of Surgery, Austin Health, The University of Melbourne, Heidelberg, Victoria, Australia
Issue Date: 5-Jan-2018 2018-01-05
Publication information: PLoS One 2018; 13(1): e0190611
Abstract: We investigated the variation of drilled regions of expert and trainee surgeons performing virtual temporal bone surgery to identify their compliance with standard drilling procedures. To this end, we recruited seven expert and six trainee ENT surgeons, who were asked to perform the surgical preparations for cochlear implantation on a virtual temporal bone. The temporal bone was divided into six regions using a semi-automated approach. The drilled area in each region was compared between groups using a sign test. Similarity within groups was calculated as a ratio of voxels (3D points) drilled by at least 75% of surgeons and at least 25% of surgeons. We observed a significant difference between groups when performing critical tasks such as exposing the facial nerve, opening the facial recess, and finding the round window. In these regions, experts' practice is more similar to each other than that between trainees. Consistent with models of skills development, expertise and expert-performance, the outcome of the analysis shows that experts perform similarly in critical parts of the procedure, and do indeed practice what they profess.
DOI: 10.1371/journal.pone.0190611
ORCID: 0000-0001-8015-8577
PubMed URL: 29304127
Type: Journal Article
Appears in Collections:Journal articles

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