Laparoendoscopic single site (LESS) in vivo suturing using a magnetic anchoring and guidance system (mags) camera in a porcine model: Impact on ergonomics and workload

Gang Yin, Woong Kyu Han, Stephen Faddegon, Yung Khan Tan, Zhuo Wei Liu, Ephrem O. Olweny, Daniel J Scott, Jeffrey A Cadeddu

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Objective: To compare the ergonomics and workload of the surgeon during single-site suturing while using the magnetic anchoring and guidance system (MAGS) camera vs a conventional laparoscope. Methods: Seven urologic surgeons were enrolled and divided into an expert group (n = 2) and a novice group (n = 5) according to their laparoendoscopic single-site (LESS) experience. Each surgeon performed 2 conventional LESS and 2 MAGS camera-assisted LESS vesicostomy closures in a porcine model. A Likert scale (scoring 1-5) questionnaire assessing workload, ergonomics, technical difficulty, visualization, and needle handling, as well as a validated National Aeronautics and Space Administration Task Load Index (NASA-TLX) questionnaire were used to evaluate the tasks and workloads. Results: MAGS LESS suturing was universally favored by expert and novice surgeons compared with conventional LESS in workload (3.4 vs 4.2), ergonomics (3.4 vs 4.4), technical challenge (3.3 vs 4.3), visualization (2.4 vs 3.3), and needle handling (3.1 vs 3.9 respectively; P <.05 for all categories). Surgeon NASA-TLX assessments found MAGS LESS suturing significantly decreased the workload in physical demand (P =.004), temporal demand (P =.017), and effort (P =.006). External instrument clashing was significantly reduced in MAGS LESS suturing (P <.001). The total operative time of MAGS LESS suturing was comparable to that of conventional LESS (P =.89). Conclusion: MAGS camera technology significantly decreased surgeon workload and improved ergonomics. Nevertheless, LESS suturing and knot tying remains a challenging task that requires training, regardless of which camera is used.

Original languageEnglish (US)
Pages (from-to)80-84
Number of pages5
JournalUrology
Volume81
Issue number1
DOIs
StatePublished - Jan 2013

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Human Engineering
Workload
Swine
United States National Aeronautics and Space Administration
Needles
Cystostomy
Laparoscopes
Operative Time
Surgeons
Technology

ASJC Scopus subject areas

  • Urology

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Laparoendoscopic single site (LESS) in vivo suturing using a magnetic anchoring and guidance system (mags) camera in a porcine model : Impact on ergonomics and workload. / Yin, Gang; Han, Woong Kyu; Faddegon, Stephen; Tan, Yung Khan; Liu, Zhuo Wei; Olweny, Ephrem O.; Scott, Daniel J; Cadeddu, Jeffrey A.

In: Urology, Vol. 81, No. 1, 01.2013, p. 80-84.

Research output: Contribution to journalArticle

Yin, Gang ; Han, Woong Kyu ; Faddegon, Stephen ; Tan, Yung Khan ; Liu, Zhuo Wei ; Olweny, Ephrem O. ; Scott, Daniel J ; Cadeddu, Jeffrey A. / Laparoendoscopic single site (LESS) in vivo suturing using a magnetic anchoring and guidance system (mags) camera in a porcine model : Impact on ergonomics and workload. In: Urology. 2013 ; Vol. 81, No. 1. pp. 80-84.
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abstract = "Objective: To compare the ergonomics and workload of the surgeon during single-site suturing while using the magnetic anchoring and guidance system (MAGS) camera vs a conventional laparoscope. Methods: Seven urologic surgeons were enrolled and divided into an expert group (n = 2) and a novice group (n = 5) according to their laparoendoscopic single-site (LESS) experience. Each surgeon performed 2 conventional LESS and 2 MAGS camera-assisted LESS vesicostomy closures in a porcine model. A Likert scale (scoring 1-5) questionnaire assessing workload, ergonomics, technical difficulty, visualization, and needle handling, as well as a validated National Aeronautics and Space Administration Task Load Index (NASA-TLX) questionnaire were used to evaluate the tasks and workloads. Results: MAGS LESS suturing was universally favored by expert and novice surgeons compared with conventional LESS in workload (3.4 vs 4.2), ergonomics (3.4 vs 4.4), technical challenge (3.3 vs 4.3), visualization (2.4 vs 3.3), and needle handling (3.1 vs 3.9 respectively; P <.05 for all categories). Surgeon NASA-TLX assessments found MAGS LESS suturing significantly decreased the workload in physical demand (P =.004), temporal demand (P =.017), and effort (P =.006). External instrument clashing was significantly reduced in MAGS LESS suturing (P <.001). The total operative time of MAGS LESS suturing was comparable to that of conventional LESS (P =.89). Conclusion: MAGS camera technology significantly decreased surgeon workload and improved ergonomics. Nevertheless, LESS suturing and knot tying remains a challenging task that requires training, regardless of which camera is used.",
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AU - Tan, Yung Khan

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AB - Objective: To compare the ergonomics and workload of the surgeon during single-site suturing while using the magnetic anchoring and guidance system (MAGS) camera vs a conventional laparoscope. Methods: Seven urologic surgeons were enrolled and divided into an expert group (n = 2) and a novice group (n = 5) according to their laparoendoscopic single-site (LESS) experience. Each surgeon performed 2 conventional LESS and 2 MAGS camera-assisted LESS vesicostomy closures in a porcine model. A Likert scale (scoring 1-5) questionnaire assessing workload, ergonomics, technical difficulty, visualization, and needle handling, as well as a validated National Aeronautics and Space Administration Task Load Index (NASA-TLX) questionnaire were used to evaluate the tasks and workloads. Results: MAGS LESS suturing was universally favored by expert and novice surgeons compared with conventional LESS in workload (3.4 vs 4.2), ergonomics (3.4 vs 4.4), technical challenge (3.3 vs 4.3), visualization (2.4 vs 3.3), and needle handling (3.1 vs 3.9 respectively; P <.05 for all categories). Surgeon NASA-TLX assessments found MAGS LESS suturing significantly decreased the workload in physical demand (P =.004), temporal demand (P =.017), and effort (P =.006). External instrument clashing was significantly reduced in MAGS LESS suturing (P <.001). The total operative time of MAGS LESS suturing was comparable to that of conventional LESS (P =.89). Conclusion: MAGS camera technology significantly decreased surgeon workload and improved ergonomics. Nevertheless, LESS suturing and knot tying remains a challenging task that requires training, regardless of which camera is used.

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