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Three-dimensional visualisation and articulating instrumentation: Impact on simulated laparoscopic tasks
Laparoscopy requires the development of technical skills distinct from those used in open procedures. Several factors extending the learning curve of laparoscopy include ergonomic and technical difficulties, such as the fulcrum effect and limited degrees of freedom. This study aimed to establish the...
Autores principales: | , , |
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Formato: | Texto |
Lenguaje: | English |
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Medknow Publications
2008
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2699064/ https://www.ncbi.nlm.nih.gov/pubmed/19547678 |
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author | Bittner, James G Hathaway, Christopher A Brown, James A |
author_facet | Bittner, James G Hathaway, Christopher A Brown, James A |
author_sort | Bittner, James G |
collection | PubMed |
description | Laparoscopy requires the development of technical skills distinct from those used in open procedures. Several factors extending the learning curve of laparoscopy include ergonomic and technical difficulties, such as the fulcrum effect and limited degrees of freedom. This study aimed to establish the impact of four variables on performance of two simulated laparoscopic tasks. METHODS: Six subjects including novice (n=2), intermediate (n=2) and expert surgeons completed two tasks: 1) four running sutures, 2) simple suture followed by surgeon's knot plus four square knots. Task variables were suturing angle (left/right), needle holder type (standard/articulating) and visualisation (2D/3D). Each task with a given set of variables was completed twice in random order. The endpoints included suturing task completion time, average and maximum distance from marks and knot tying task completion time. RESULTS: Suturing task completion time was prolonged by 45-degree right angle suturing, articulating needle holder use and lower skill levels (all P < 0.0001). Accuracy also decreased with articulating needle holder use (both P < 0.0001). 3D vision affected only maximum distance (P=0.0108). For the knot tying task, completion time was greater with 45-degree right angle suturing (P=0.0015), articulating needle holder use (P < 0.0001), 3D vision (P=0.0014) and novice skill level (P=0.0003). Participants felt that 3D visualisation offered subjective advantages during training. CONCLUSIONS: Results suggest construct validity. A 3D personal head display and articulating needle holder do not immediately improve task completion times or accuracy and may increase the training burden of laparoscopic suturing and knot tying. |
format | Text |
id | pubmed-2699064 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2008 |
publisher | Medknow Publications |
record_format | MEDLINE/PubMed |
spelling | pubmed-26990642009-06-22 Three-dimensional visualisation and articulating instrumentation: Impact on simulated laparoscopic tasks Bittner, James G Hathaway, Christopher A Brown, James A J Minim Access Surg Original Article Laparoscopy requires the development of technical skills distinct from those used in open procedures. Several factors extending the learning curve of laparoscopy include ergonomic and technical difficulties, such as the fulcrum effect and limited degrees of freedom. This study aimed to establish the impact of four variables on performance of two simulated laparoscopic tasks. METHODS: Six subjects including novice (n=2), intermediate (n=2) and expert surgeons completed two tasks: 1) four running sutures, 2) simple suture followed by surgeon's knot plus four square knots. Task variables were suturing angle (left/right), needle holder type (standard/articulating) and visualisation (2D/3D). Each task with a given set of variables was completed twice in random order. The endpoints included suturing task completion time, average and maximum distance from marks and knot tying task completion time. RESULTS: Suturing task completion time was prolonged by 45-degree right angle suturing, articulating needle holder use and lower skill levels (all P < 0.0001). Accuracy also decreased with articulating needle holder use (both P < 0.0001). 3D vision affected only maximum distance (P=0.0108). For the knot tying task, completion time was greater with 45-degree right angle suturing (P=0.0015), articulating needle holder use (P < 0.0001), 3D vision (P=0.0014) and novice skill level (P=0.0003). Participants felt that 3D visualisation offered subjective advantages during training. CONCLUSIONS: Results suggest construct validity. A 3D personal head display and articulating needle holder do not immediately improve task completion times or accuracy and may increase the training burden of laparoscopic suturing and knot tying. Medknow Publications 2008 /pmc/articles/PMC2699064/ /pubmed/19547678 Text en © Journal of Minimal Access Surgery http://creativecommons.org/licenses/by/2.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Bittner, James G Hathaway, Christopher A Brown, James A Three-dimensional visualisation and articulating instrumentation: Impact on simulated laparoscopic tasks |
title | Three-dimensional visualisation and articulating instrumentation: Impact on simulated laparoscopic tasks |
title_full | Three-dimensional visualisation and articulating instrumentation: Impact on simulated laparoscopic tasks |
title_fullStr | Three-dimensional visualisation and articulating instrumentation: Impact on simulated laparoscopic tasks |
title_full_unstemmed | Three-dimensional visualisation and articulating instrumentation: Impact on simulated laparoscopic tasks |
title_short | Three-dimensional visualisation and articulating instrumentation: Impact on simulated laparoscopic tasks |
title_sort | three-dimensional visualisation and articulating instrumentation: impact on simulated laparoscopic tasks |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2699064/ https://www.ncbi.nlm.nih.gov/pubmed/19547678 |
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