Tensile Strength of Surgical Knots Performed with the da Vinci Surgical Robot.
(2010) In Journal of Minimally Invasive Gynecology Apr 7. p.365-370- Abstract
- The objective of this study was to estimate the tensile strength of surgical knots made using the da Vinci robot. Four different types of flat square knots (strand-to-strand 4 throw, strand-to-strand 6 throw, loop-to-strand 4 throw, and loop-to-strand 6 throw) were made using the da Vinci-S system by 4 different surgeons, all experienced with the system. For the knots, we used braided polyglactin 910 (Vicryl 2-0). Hand-tied, flat, square, 4-throw strand-to-strand knots were used as reference. The tensile strength was measured for all knots using the Instron 5566 system calibrated to an accuracy of +/-.5% at 4 to 10 newtons (N) and +/-.4% at greater than 10 N. Compared with reference knots, only 1 of 4 surgeons could make knots as equally... (More)
- The objective of this study was to estimate the tensile strength of surgical knots made using the da Vinci robot. Four different types of flat square knots (strand-to-strand 4 throw, strand-to-strand 6 throw, loop-to-strand 4 throw, and loop-to-strand 6 throw) were made using the da Vinci-S system by 4 different surgeons, all experienced with the system. For the knots, we used braided polyglactin 910 (Vicryl 2-0). Hand-tied, flat, square, 4-throw strand-to-strand knots were used as reference. The tensile strength was measured for all knots using the Instron 5566 system calibrated to an accuracy of +/-.5% at 4 to 10 newtons (N) and +/-.4% at greater than 10 N. Compared with reference knots, only 1 of 4 surgeons could make knots as equally strong with the robot. For all surgeons, strand-to-strand knots had a significantly higher tensile strength than loop-to-strand knots when made with the robot. Adding 2 throws to the knot did not increase the knots strength in the robot. It is possible to make equally strong surgical knots with the da Vinci robot as by hand; however, despite previous experience with the robot, only 1 of 4 surgeons managed to do so. Adding 2 throws to R4SS and R4LS knots did not increase the tensile strength significantly for any of the 4 surgeons. It is important to train and tie knots using the da Vinci system with the same care as by hand and to be aware of possible differences in knot-tying technique with the robot and manually. With the robot, strand-to-strand knots were stronger than loop-to-strand knots, and should be preferred. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1582209
- author
- Reynisson, Petur LU ; Shokri, Ebi ; Bendahl, Pär-Ola LU and Persson, Jan LU
- organization
- publishing date
- 2010
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Minimally Invasive Gynecology
- volume
- Apr 7
- pages
- 365 - 370
- publisher
- Elsevier
- external identifiers
-
- wos:000277788200017
- pmid:20227925
- scopus:77953285507
- pmid:20227925
- ISSN
- 1553-4669
- DOI
- 10.1016/j.jmig.2010.01.005
- language
- English
- LU publication?
- yes
- id
- 92720dd1-7ee9-4e48-8c6d-86967cad9604 (old id 1582209)
- alternative location
- http://www.ncbi.nlm.nih.gov/pubmed/20227925?dopt=Abstract
- date added to LUP
- 2016-04-04 08:55:06
- date last changed
- 2025-04-04 15:04:59
@article{92720dd1-7ee9-4e48-8c6d-86967cad9604,
abstract = {{The objective of this study was to estimate the tensile strength of surgical knots made using the da Vinci robot. Four different types of flat square knots (strand-to-strand 4 throw, strand-to-strand 6 throw, loop-to-strand 4 throw, and loop-to-strand 6 throw) were made using the da Vinci-S system by 4 different surgeons, all experienced with the system. For the knots, we used braided polyglactin 910 (Vicryl 2-0). Hand-tied, flat, square, 4-throw strand-to-strand knots were used as reference. The tensile strength was measured for all knots using the Instron 5566 system calibrated to an accuracy of +/-.5% at 4 to 10 newtons (N) and +/-.4% at greater than 10 N. Compared with reference knots, only 1 of 4 surgeons could make knots as equally strong with the robot. For all surgeons, strand-to-strand knots had a significantly higher tensile strength than loop-to-strand knots when made with the robot. Adding 2 throws to the knot did not increase the knots strength in the robot. It is possible to make equally strong surgical knots with the da Vinci robot as by hand; however, despite previous experience with the robot, only 1 of 4 surgeons managed to do so. Adding 2 throws to R4SS and R4LS knots did not increase the tensile strength significantly for any of the 4 surgeons. It is important to train and tie knots using the da Vinci system with the same care as by hand and to be aware of possible differences in knot-tying technique with the robot and manually. With the robot, strand-to-strand knots were stronger than loop-to-strand knots, and should be preferred.}},
author = {{Reynisson, Petur and Shokri, Ebi and Bendahl, Pär-Ola and Persson, Jan}},
issn = {{1553-4669}},
language = {{eng}},
pages = {{365--370}},
publisher = {{Elsevier}},
series = {{Journal of Minimally Invasive Gynecology}},
title = {{Tensile Strength of Surgical Knots Performed with the da Vinci Surgical Robot.}},
url = {{http://dx.doi.org/10.1016/j.jmig.2010.01.005}},
doi = {{10.1016/j.jmig.2010.01.005}},
volume = {{Apr 7}},
year = {{2010}},
}