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The improved cortical button shows better breaking strength of sutures compared with 10 original cortical button after cyclic loading

BACKGROUND: Suspensory cortical buttons are widely used for fixation of reconstructed ligaments during anterior cruciate ligament (ACL) reconstruction because they have high usability and a favorable fixing force. However, it is not always easy to fix a reconstructed ACL while maintaining appropriat...

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Autores principales: Takahashi, Toshiaki, Takahashi, Manabu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7103022/
https://www.ncbi.nlm.nih.gov/pubmed/32222847
http://dx.doi.org/10.1186/s40634-020-00232-y
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author Takahashi, Toshiaki
Takahashi, Manabu
author_facet Takahashi, Toshiaki
Takahashi, Manabu
author_sort Takahashi, Toshiaki
collection PubMed
description BACKGROUND: Suspensory cortical buttons are widely used for fixation of reconstructed ligaments during anterior cruciate ligament (ACL) reconstruction because they have high usability and a favorable fixing force. However, it is not always easy to fix a reconstructed ACL while maintaining appropriate ligament tension. Therefore, we developed an improved cortical button that provides temporary tension until suturing is completed. METHODS: Button holes of our improved EndoButton are not perpendicular to the bone surface on which the button is placed, but have an angle of 45 degrees so that the button can be temporarily fixed by applying tension to the suture. The improved EndoButton and the original EndoButton (Smith & Nephew Inc., Andover, Massachusetts) were each tied to FiberWire 5/7 metric (5 M) (manufactured by Arthrex). Ten cycles of preliminary loading (0–50 N) were applied to each suture, followed by test loading (0–250 N) for 500 or 1000 cycles. Then, a tensile test was performed at a displacement velocity of 20 mm/min. RESULTS: The breaking strength of the sutures of the improved EndoButton were tend to higher than those of the sutures of the original EndoButton after 1000 loading cycles (p = 0.067, d = 0.883). The moduli of rigidity of the sutures of the improved EndoButton were higher than those of the sutures of the original EndoButton after 500 loading cycles (p = 0.027) and remained almost the same regardless of the number of loading cycles. CONCLUSION: We found that compared with the original cortical button, the improved cortical button was better able to retain suture breaking strength and modulus of rigidity, regardless of the number of load cycles.
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spelling pubmed-71030222020-04-03 The improved cortical button shows better breaking strength of sutures compared with 10 original cortical button after cyclic loading Takahashi, Toshiaki Takahashi, Manabu J Exp Orthop Research BACKGROUND: Suspensory cortical buttons are widely used for fixation of reconstructed ligaments during anterior cruciate ligament (ACL) reconstruction because they have high usability and a favorable fixing force. However, it is not always easy to fix a reconstructed ACL while maintaining appropriate ligament tension. Therefore, we developed an improved cortical button that provides temporary tension until suturing is completed. METHODS: Button holes of our improved EndoButton are not perpendicular to the bone surface on which the button is placed, but have an angle of 45 degrees so that the button can be temporarily fixed by applying tension to the suture. The improved EndoButton and the original EndoButton (Smith & Nephew Inc., Andover, Massachusetts) were each tied to FiberWire 5/7 metric (5 M) (manufactured by Arthrex). Ten cycles of preliminary loading (0–50 N) were applied to each suture, followed by test loading (0–250 N) for 500 or 1000 cycles. Then, a tensile test was performed at a displacement velocity of 20 mm/min. RESULTS: The breaking strength of the sutures of the improved EndoButton were tend to higher than those of the sutures of the original EndoButton after 1000 loading cycles (p = 0.067, d = 0.883). The moduli of rigidity of the sutures of the improved EndoButton were higher than those of the sutures of the original EndoButton after 500 loading cycles (p = 0.027) and remained almost the same regardless of the number of loading cycles. CONCLUSION: We found that compared with the original cortical button, the improved cortical button was better able to retain suture breaking strength and modulus of rigidity, regardless of the number of load cycles. Springer Berlin Heidelberg 2020-03-28 /pmc/articles/PMC7103022/ /pubmed/32222847 http://dx.doi.org/10.1186/s40634-020-00232-y Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Research
Takahashi, Toshiaki
Takahashi, Manabu
The improved cortical button shows better breaking strength of sutures compared with 10 original cortical button after cyclic loading
title The improved cortical button shows better breaking strength of sutures compared with 10 original cortical button after cyclic loading
title_full The improved cortical button shows better breaking strength of sutures compared with 10 original cortical button after cyclic loading
title_fullStr The improved cortical button shows better breaking strength of sutures compared with 10 original cortical button after cyclic loading
title_full_unstemmed The improved cortical button shows better breaking strength of sutures compared with 10 original cortical button after cyclic loading
title_short The improved cortical button shows better breaking strength of sutures compared with 10 original cortical button after cyclic loading
title_sort improved cortical button shows better breaking strength of sutures compared with 10 original cortical button after cyclic loading
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7103022/
https://www.ncbi.nlm.nih.gov/pubmed/32222847
http://dx.doi.org/10.1186/s40634-020-00232-y
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