Trial reportSurgical endoscopy2017
Performance of Kymerax© precision-drive articulating surgical system compared to conventional laparoscopic instruments in a pelvitrainer model.
Trial report in Surgical endoscopy, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
14 citing papers in PubMed.
- Performance and operative outcomes' evaluation of a hand-held articulating laparoscopic device: a prospective clinical trial on the HandX™ platform.Journal of robotic surgery · 2025Trial
- Laparoscopy training of novices with complex curved instruments using 2D- and 3D-visualization.Langenbeck's archives of surgery · 2024Trial
- Comparison of 2D 4K vs. 3D HD laparoscopic imaging systems using a pelvitrainer model: a randomized controlled study.Updates in surgery · 2022Trial
- Endoscopic surgery suturing techniques: a randomized study on learning.BMC surgery · 2022Trial
- Evaluation of new motorized articulating laparoscopic instruments by laparoscopic novices using a standardized laparoscopic skills curriculum.Surgical endoscopy · 2021Trial
- Comparison between a laparoscopic articulating needle driver with standard laparoscopic instrumentation for total laparoscopic gastropexy in dogs.Veterinary surgery : VS · 2026Article
- Evaluation of the suitability of using ArtiSential in various renal surgery: IDEAL stage 1 study.BMC urology · 2024Article
- Design, Analysis and Experimental Validation of a Novel 7-Degrees of Freedom Instrument for Laparoscopic Surgeries.Annals of biomedical engineering · 2023Article
- Review of the Standard and Advanced Screening, Staging Systems and Treatment Modalities for Cervical Cancer.Cancers · 2022Review
- Assessment of an Articulating Laparoscopic Needle Holder (FlexDex™) Compared to a Conventional Rigid Needle Holder in 2-Dimension Vision Amongst Novices: A Randomised Controlled Study.Medical devices (Auckland, N.Z.) · 2022Article
- Handheld robotic needle holder training: slower but better.Surgical endoscopy · 2021Article
- Advances and Trends in Pediatric Minimally Invasive Surgery.Journal of clinical medicine · 2020Review
- Pneumatically driven surgical forceps displaying a magnified grasping torque.The international journal of medical robotics + computer assisted surgery : MRCAS · 2020Article
- Initial experience using a robotic-driven laparoscopic needle holder with ergonomic handle: assessment of surgeons' task performance and ergonomics.International journal of computer assisted radiology and surgery · 2017Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe Kymerax© Precision-Drive Articulating Surgical System by Terumo© is a handheld laparoscopic robot which permits motion in two additional degrees of freedom (deflection and rotation in the instrument tip). In a pelvitrainer model, we compared the performance of participants with different laparoscopic experiences and compared Kymerax© to conventional laparoscopic instruments.
methods20 expert surgeons, performing more than 50 laparoscopic procedures per year, and 25 medical students without any experience in surgery at all were selected. Each participant was randomized into two groups: Group TK performed the tasks using the traditional laparoscopic Instruments (TLI) first and Kymerax© thereafter, group KT vice versa. Six standardized tasks were used: Two instructional exercises and four tasks where time, number of mistakes, and overall precision were measured. Finally, a questionnaire had to be answered.
resultsAll four tasks were performed significantly more slowly with the Kymerax© device. Improved needle control in stitches towards the surgeon, significantly less deviation while cutting along different lines as well as a significantly reduced fraying of the cutting edge were found when participants were using Kymerax©. By questionnaire more than 90% of the participants indicated clear advantages using Kymerax©. However, participants needed more training time and had an earlier loss of concentration with Kymerax©. Further complaints about Kymerax© were its limitations in rotation and deflection, the impaired view as well as the non-ergonomic instrument handle. Rotation force, instrument weight, digital instrument-tip control, and needle fixation were rated as accurate.
conclusionsThis study shows that more time is needed to solve tasks with Kymerax© compared to conventional laparoscopic instruments. Kymerax© is superior to conventional laparoscopy for suturing at difficult angles and cutting along complex structures. Kymerax© can potentially bring benefits for certain laparoscopic tasks, but as seen in this study, further developments are necessary. Terumo© meanwhile closed down its Kymerax
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