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Comparison Between Magnetic Anchoring and Guidance System Camera-Assisted Laparoendoscopic Single-Site Surgery Nephrectomy and Conventional Laparoendoscopic Single-Site Surgery Nephrectomy in a Porcine Model: Focus on Ergonomics and Workload Profiles

肾切除术 工作量 医学 利克特量表 外科 任务(项目管理) 医学物理学 计算机科学 心理学 内科学 工程类 操作系统 发展心理学 系统工程
作者
Woong Kyu Han,Yung K. Tan,Ephrem O. Olweny,Gang Yin,Zhuowei Liu,Stephen Faddegon,Daniel J. Scott,Jeffrey A. Cadeddu
出处
期刊:Journal of Endourology [Mary Ann Liebert, Inc.]
卷期号:27 (4): 490-496 被引量:11
标识
DOI:10.1089/end.2012.0484
摘要

To compare surgeon-assessed ergonomic and workload demands of magnetic anchoring and guidance system (MAGS) laparoendoscopic single-site surgery (LESS) nephrectomy with conventional LESS nephrectomy in a porcine model.Participants included two expert and five novice surgeons who each performed bilateral LESS nephrectomy in two nonsurvival animals using either the MAGS camera or conventional laparoscope. Task difficulty and workload demands of the surgeon and camera driver were assessed using the validated National Aeronautics and Space Administration Task Load Index (NASA-TLX) questionnaire. Surgeons were also asked to score 6 parameters on a Likert scale (range 1=low/easy to 5=high/hard): procedure-associated workload, ergonomics, technical challenge, visualization, accidental events, and instrument handling. Each step of the nephrectomy was also timed and instrument clashing was quantified.Scores for each parameter on the Likert scale were significantly lower for MAGS-LESS nephrectomy. Mean number of internal and external clashes were significantly lower for the MAGS camera (p<0.001). Mean task times for each procedure were shorter for experts than for novices, but this was not statistically significant. NASA-TLX workload ratings by the surgeon and camera driver showed that MAGS resulted in a significantly lower workload than the conventional laparoscope during LESS nephrectomy (p<0.05).The use of the MAGS camera during LESS nephrectomy lowers the task workload for both the surgeon and camera driver when compared to conventional laparoscope use. Subjectively, it appears to also improve surgeons' impressions of ergonomics and technical challenge. Pending approval for clinical use, further evaluation in the clinical setting is warranted.
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