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In Vitro Biomechanical Study on the “Figure-of-Eight” and Kessler Sutures in Swine Flexor Tendons[*]Article in several languages: português | English
Objective To evaluate the biomechanical properties of the “figure-of-eight” and Kessler suture techniques for tendons.
Methods Flexor tendons of porcine fingers were divided into two groups with triple central “figure of eight” sutures (six passages) and Kessler sutures (two passages) associated with simple and continuous peripheral sutures, and submitted to continuous longitudinal mechanical tests, to obtain the mechanical properties of maximum load and energy at maximum load.
Results The mean maximum load and energy at maximum load in the “figure-of-8” suture were of 63.4 N and 217.3 N.mm respectively; in the Kessler suture, the values were of 34.19 N and 100.9 N.mm respectively. The statistical analysis indicated that the “figure-of-eight” suture is mechanically superior to the Kessler technique.
Conclusion Under the conditions of this experiment and in the flexor tendon of porcine fingers, the triple “figure-of-eight” suture (six passages) is more resistant than the Kessler suture (two passages). The “figure-of-eight” suture with six passages enables active movement in the immediate rehabilitation of the flexor tendon repair of the finger, with little risk of rupture or suture spacing.
Keywordsorthopedic procedures - biomechanical phenomenon - tendon injuries - finger injuries - suture techniques
* Study Developed at The Department of Surgery and Orthopedics, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil.
Received: 31 March 2019
Accepted: 23 July 2019
09 January 2020 (online)
© 2020. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).
Sociedade Brasileira de Ortopedia e Traumatologia. Published by Thieme Revinter Publicações Ltda
Rio de Janeiro, Brazil
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