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Fixation of the Anterior Ligament Graft at the Tibial Pole: Biomechanical Analysis of Three Methods

Objective  Comparative biomechanical analysis of tibial fixation strength for ligament reconstruction with interference screw compared with screw post and washer, and compared with the associated fixation of both methods (hybrid fixation). Method  A total of 54 specimens were used (porcine tibias an...

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Autores principales: Weiss, Fernando Pessoa, Possoli, Felipe Augusto de Aguiar, Costa, Isabel Ziesemer, Borges, Paulo César, Stieven Filho, Edmar, Kubrusly, Luiz Fernando
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Sociedade Brasileira de Ortopedia e Traumatologia. Published by Thieme Revnter Publicações Ltda 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6923657/
https://www.ncbi.nlm.nih.gov/pubmed/31875069
http://dx.doi.org/10.1055/s-0039-1697015
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author Weiss, Fernando Pessoa
Possoli, Felipe Augusto de Aguiar
Costa, Isabel Ziesemer
Borges, Paulo César
Stieven Filho, Edmar
Kubrusly, Luiz Fernando
author_facet Weiss, Fernando Pessoa
Possoli, Felipe Augusto de Aguiar
Costa, Isabel Ziesemer
Borges, Paulo César
Stieven Filho, Edmar
Kubrusly, Luiz Fernando
author_sort Weiss, Fernando Pessoa
collection PubMed
description Objective  Comparative biomechanical analysis of tibial fixation strength for ligament reconstruction with interference screw compared with screw post and washer, and compared with the associated fixation of both methods (hybrid fixation). Method  A total of 54 specimens were used (porcine tibias and bovine flexor digital tendons), which were divided into three groups with fixation types similar to those used in anterior cruciate ligament (ACL) reconstruction: 1) fixation with interference screw; 2) fixation with screw post and toothed washer over knot and suture strand; and )- fixation with screw post and washer combined with interference screw (hybrid fixation). The analyses were performed through pull-out biomechanical tensile tests to determine the stiffness and load to system failure (yield load). Results  The hybrid fixation group presented a significantly higher final stiffness (59.10 ± 3.45 N/mm) in comparison to the other groups ( p  < 0.05) and a higher yield load (581.34 ± 33.48 N) compared to the interference screw group ( p  < 0.05). Conclusion  Hybrid fixation had biomechanical advantages over the bovine digital flexor graft fixation system in swine tibia during tensile tests.
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spelling pubmed-69236572019-12-24 Fixation of the Anterior Ligament Graft at the Tibial Pole: Biomechanical Analysis of Three Methods Weiss, Fernando Pessoa Possoli, Felipe Augusto de Aguiar Costa, Isabel Ziesemer Borges, Paulo César Stieven Filho, Edmar Kubrusly, Luiz Fernando Rev Bras Ortop (Sao Paulo) Objective  Comparative biomechanical analysis of tibial fixation strength for ligament reconstruction with interference screw compared with screw post and washer, and compared with the associated fixation of both methods (hybrid fixation). Method  A total of 54 specimens were used (porcine tibias and bovine flexor digital tendons), which were divided into three groups with fixation types similar to those used in anterior cruciate ligament (ACL) reconstruction: 1) fixation with interference screw; 2) fixation with screw post and toothed washer over knot and suture strand; and )- fixation with screw post and washer combined with interference screw (hybrid fixation). The analyses were performed through pull-out biomechanical tensile tests to determine the stiffness and load to system failure (yield load). Results  The hybrid fixation group presented a significantly higher final stiffness (59.10 ± 3.45 N/mm) in comparison to the other groups ( p  < 0.05) and a higher yield load (581.34 ± 33.48 N) compared to the interference screw group ( p  < 0.05). Conclusion  Hybrid fixation had biomechanical advantages over the bovine digital flexor graft fixation system in swine tibia during tensile tests. Sociedade Brasileira de Ortopedia e Traumatologia. Published by Thieme Revnter Publicações Ltda 2019-12 2019-12-13 /pmc/articles/PMC6923657/ /pubmed/31875069 http://dx.doi.org/10.1055/s-0039-1697015 Text en https://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License, which permits unrestricted reproduction and distribution, for non-commercial purposes only; and use and reproduction, but not distribution, of adapted material for non-commercial purposes only, provided the original work is properly cited.
spellingShingle Weiss, Fernando Pessoa
Possoli, Felipe Augusto de Aguiar
Costa, Isabel Ziesemer
Borges, Paulo César
Stieven Filho, Edmar
Kubrusly, Luiz Fernando
Fixation of the Anterior Ligament Graft at the Tibial Pole: Biomechanical Analysis of Three Methods
title Fixation of the Anterior Ligament Graft at the Tibial Pole: Biomechanical Analysis of Three Methods
title_full Fixation of the Anterior Ligament Graft at the Tibial Pole: Biomechanical Analysis of Three Methods
title_fullStr Fixation of the Anterior Ligament Graft at the Tibial Pole: Biomechanical Analysis of Three Methods
title_full_unstemmed Fixation of the Anterior Ligament Graft at the Tibial Pole: Biomechanical Analysis of Three Methods
title_short Fixation of the Anterior Ligament Graft at the Tibial Pole: Biomechanical Analysis of Three Methods
title_sort fixation of the anterior ligament graft at the tibial pole: biomechanical analysis of three methods
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6923657/
https://www.ncbi.nlm.nih.gov/pubmed/31875069
http://dx.doi.org/10.1055/s-0039-1697015
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