Anne-Lise D D'Angelo1, Drew N Rutherford2, Rebecca D Ray3, Shlomi Laufer4, Andrea Mason5, Carla M Pugh3. 1. Department of Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, 600 Highland Ave, K6/135 CSC, Madison, WI, 53792, USA. Electronic address: ad'angelo@uwhealth.org. 2. Department of Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, 600 Highland Ave, K6/135 CSC, Madison, WI, 53792, USA; Department of Kinesiology, School of Education, University of Wisconsin-Madison, Madison, WI, USA. 3. Department of Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, 600 Highland Ave, K6/135 CSC, Madison, WI, 53792, USA. 4. Department of Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, 600 Highland Ave, K6/135 CSC, Madison, WI, 53792, USA; Department of Electrical and Computer Engineering, College of Engineering, University of Wisconsin-Madison, Madison, WI, USA. 5. Department of Kinesiology, School of Education, University of Wisconsin-Madison, Madison, WI, USA.
Abstract
BACKGROUND: The aim of this study was to evaluate working volume as a potential assessment metric for open surgical tasks. METHODS: Surgical attendings (n = 6), residents (n = 4), and medical students (n = 5) performed a suturing task on simulated connective tissue (foam), artery (rubber balloon), and friable tissue (tissue paper). Using a motion tracking system, effective working volume was calculated for each hand. Repeated measures analysis of variance assessed differences in working volume by experience level, dominant and/or nondominant hand, and tissue type. RESULTS: Analysis revealed a linear relationship between experience and working volume. Attendings had the smallest working volume, and students had the largest (P = .01). The 3-way interaction of experience level, hand, and material type showed attendings and residents maintained a similar working volume for dominant and nondominant hands for all tasks. In contrast, medical students' nondominant hand covered larger working volumes for the balloon and tissue paper materials (P < .05). CONCLUSIONS: This study provides validity evidence for the use of working volume as a metric for open surgical skills. Working volume may provide a means for assessing surgical efficiency and the operative learning curve.
BACKGROUND: The aim of this study was to evaluate working volume as a potential assessment metric for open surgical tasks. METHODS: Surgical attendings (n = 6), residents (n = 4), and medical students (n = 5) performed a suturing task on simulated connective tissue (foam), artery (rubber balloon), and friable tissue (tissue paper). Using a motion tracking system, effective working volume was calculated for each hand. Repeated measures analysis of variance assessed differences in working volume by experience level, dominant and/or nondominant hand, and tissue type. RESULTS: Analysis revealed a linear relationship between experience and working volume. Attendings had the smallest working volume, and students had the largest (P = .01). The 3-way interaction of experience level, hand, and material type showed attendings and residents maintained a similar working volume for dominant and nondominant hands for all tasks. In contrast, medical students' nondominant hand covered larger working volumes for the balloon and tissue paper materials (P < .05). CONCLUSIONS: This study provides validity evidence for the use of working volume as a metric for open surgical skills. Working volume may provide a means for assessing surgical efficiency and the operative learning curve.
Authors: Dario G Liebermann; Larry Katz; Mike D Hughes; Roger M Bartlett; Jim McClements; Ian M Franks Journal: J Sports Sci Date: 2002-10 Impact factor: 3.337
Authors: Anne-Lise D D'Angelo; Drew N Rutherford; Rebecca D Ray; Shlomi Laufer; Calvin Kwan; Elaine R Cohen; Andrea Mason; Carla M Pugh Journal: Am J Surg Date: 2015-01-14 Impact factor: 2.565
Authors: Carly E Glarner; Yue-Yung Hu; Chia-Hsiung Chen; Robert G Radwin; Qianqian Zhao; Mark W Craven; Douglas A Wiegmann; Carla M Pugh; Matthew J Carty; Caprice C Greenberg Journal: Surgery Date: 2014-06-21 Impact factor: 3.982
Authors: Shlomi Laufer; Anne-Lise D D'Angelo; Calvin Kwan; Rebbeca D Ray; Rachel Yudkowsky; John R Boulet; William C McGaghie; Carla M Pugh Journal: Ann Surg Date: 2017-12 Impact factor: 12.969