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On the mechanical design of cruciate ligaments based on polymeric ropes for knee prosthesis.

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Title: On the mechanical design of cruciate ligaments based on polymeric ropes for knee prosthesis.
Authors: Rodríguez Lelis, J. M.1 jmlelis@cenidet.edu.mx, Méndez Aguirre, J. S. A.2, Arellano Cabrera, J. A.3, Torres, J. Navarro3, Treviño, Marciano Vargas4, Pliego, A. A.5
Source: Revista Mexicana de Ingeniería Biomédica. jul2011, Vol. 32 Issue 1, p25-31. 7p.
Subjects: CRUCIATE ligaments, ANTERIOR cruciate ligament injuries, TISSUE scaffolds, POLYETHYLENE, POLYPROPYLENE, BONE mechanics
Abstract (English): The cruciate ligaments are the ligamentous structure of the knee, which function as a joint stabilizer . It is known that the anterior cruciate ligaments are the most commonly injured ligaments of the knee, and are typically removed during total knee replacement. Also, that exists a limitation of existing grafts which has have motivated the investigation of tissue-engineered anterior cruciate ligament grafts. These investigations include different types of scaffold design. Although these designs have exhibited comparable behavior as natural anterior cruciate ligaments, still there is no commercially available synthetic graft that could achieve fully the mechanical properties of natural ones. In this paper it is attempted to accomplish this goal by introducing the design of cruciate ligaments based on the similarity between the mechanical behavior of the cruciate ligaments and the mechanical behavior of bridge cables, which allows one to apply the theory of the latter to propose an arrangement of braided threads of polyethylene and polypropylene. Mechanical tests on the proposed model show that the mechanical behavior of the designed cables is similar to the cruciate ligaments. The observed differences in stress-strain curves showed an average error of 10.08% for the anterior cruciate ligaments ACL and 9.99% for the posterior cruciate ligaments PCL. [ABSTRACT FROM AUTHOR]
Abstract (Spanish): Los ligamentos cruzados son las estructuras ligamentosas de la rodilla que tienen la función de darle estabilidad a la misma. Se sabe que los ligamentos cruzados anteriores son la estructura de la articulación de la rodilla que más comúnmente se ve afectada por alguna lesión y suelen retirase cuando se realiza una intervención quirúrgica de reemplazo total de rodilla. Por otro lado, existe una limitación en el número de implantes disponibles para las prótesis de rodilla, lo que ha impulsado el desarrollo de nuevas investigaciones en el área de la ingeniería de tejidos. En estas investigaciones se han creado nuevos tipos de andamios para tejido. A pesar de que estos andamios han demostrado comportarse en cierto modo como los ligamentos cruzados de origen natural, no existe un andamio a nivel comercial que pueda ser utilizado con confianza dado que no reproducen completamente las propiedades mecánicas de los ligamentos. En este artículo, se presenta un desarrollo que trata cumplir este objetivo a partir de las similitudes en el comportamiento mecánico de los ligamentos cruzados y de los cables puentes a base de cables. Esta idea permite usar las ideas de esta última para proponer una serie de hilos trenzados de polietileno y polipropileno. Las pruebas mecánicas realizadas en este tipo de arreglos y en ligamentos cruzados dieron resultados muy similares. Las diferencias observadas en las curvas tensión-estrés mostraron un error promedio de 10.8 % para los ligamentos cruzados anteriores y de 9.99% para los ligamentos cruzados posteriores. [ABSTRACT FROM AUTHOR]
Copyright of Revista Mexicana de Ingeniería Biomédica is the property of Sociedad Mexicana de Ingenieria Biomedica, A.C. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: On the mechanical design of cruciate ligaments based on polymeric ropes for knee prosthesis.
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  Data: <searchLink fieldCode="AR" term="%22Rodríguez+Lelis%2C+J%2E+M%2E%22">Rodríguez Lelis, J. M.</searchLink><relatesTo>1</relatesTo><i> jmlelis@cenidet.edu.mx</i><br /><searchLink fieldCode="AR" term="%22Méndez+Aguirre%2C+J%2E+S%2E+A%2E%22">Méndez Aguirre, J. S. A.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Arellano+Cabrera%2C+J%2E+A%2E%22">Arellano Cabrera, J. A.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Torres%2C+J%2E+Navarro%22">Torres, J. Navarro</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Treviño%2C+Marciano+Vargas%22">Treviño, Marciano Vargas</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Pliego%2C+A%2E+A%2E%22">Pliego, A. A.</searchLink><relatesTo>5</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Revista+Mexicana+de+Ingeniería+Biomédica%22">Revista Mexicana de Ingeniería Biomédica</searchLink>. jul2011, Vol. 32 Issue 1, p25-31. 7p.
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  Data: <searchLink fieldCode="DE" term="%22CRUCIATE+ligaments%22">CRUCIATE ligaments</searchLink><br /><searchLink fieldCode="DE" term="%22ANTERIOR+cruciate+ligament+injuries%22">ANTERIOR cruciate ligament injuries</searchLink><br /><searchLink fieldCode="DE" term="%22TISSUE+scaffolds%22">TISSUE scaffolds</searchLink><br /><searchLink fieldCode="DE" term="%22POLYETHYLENE%22">POLYETHYLENE</searchLink><br /><searchLink fieldCode="DE" term="%22POLYPROPYLENE%22">POLYPROPYLENE</searchLink><br /><searchLink fieldCode="DE" term="%22BONE+mechanics%22">BONE mechanics</searchLink>
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  Label: Abstract (English)
  Group: Ab
  Data: The cruciate ligaments are the ligamentous structure of the knee, which function as a joint stabilizer . It is known that the anterior cruciate ligaments are the most commonly injured ligaments of the knee, and are typically removed during total knee replacement. Also, that exists a limitation of existing grafts which has have motivated the investigation of tissue-engineered anterior cruciate ligament grafts. These investigations include different types of scaffold design. Although these designs have exhibited comparable behavior as natural anterior cruciate ligaments, still there is no commercially available synthetic graft that could achieve fully the mechanical properties of natural ones. In this paper it is attempted to accomplish this goal by introducing the design of cruciate ligaments based on the similarity between the mechanical behavior of the cruciate ligaments and the mechanical behavior of bridge cables, which allows one to apply the theory of the latter to propose an arrangement of braided threads of polyethylene and polypropylene. Mechanical tests on the proposed model show that the mechanical behavior of the designed cables is similar to the cruciate ligaments. The observed differences in stress-strain curves showed an average error of 10.08% for the anterior cruciate ligaments ACL and 9.99% for the posterior cruciate ligaments PCL. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label: Abstract (Spanish)
  Group: Ab
  Data: Los ligamentos cruzados son las estructuras ligamentosas de la rodilla que tienen la función de darle estabilidad a la misma. Se sabe que los ligamentos cruzados anteriores son la estructura de la articulación de la rodilla que más comúnmente se ve afectada por alguna lesión y suelen retirase cuando se realiza una intervención quirúrgica de reemplazo total de rodilla. Por otro lado, existe una limitación en el número de implantes disponibles para las prótesis de rodilla, lo que ha impulsado el desarrollo de nuevas investigaciones en el área de la ingeniería de tejidos. En estas investigaciones se han creado nuevos tipos de andamios para tejido. A pesar de que estos andamios han demostrado comportarse en cierto modo como los ligamentos cruzados de origen natural, no existe un andamio a nivel comercial que pueda ser utilizado con confianza dado que no reproducen completamente las propiedades mecánicas de los ligamentos. En este artículo, se presenta un desarrollo que trata cumplir este objetivo a partir de las similitudes en el comportamiento mecánico de los ligamentos cruzados y de los cables puentes a base de cables. Esta idea permite usar las ideas de esta última para proponer una serie de hilos trenzados de polietileno y polipropileno. Las pruebas mecánicas realizadas en este tipo de arreglos y en ligamentos cruzados dieron resultados muy similares. Las diferencias observadas en las curvas tensión-estrés mostraron un error promedio de 10.8 % para los ligamentos cruzados anteriores y de 9.99% para los ligamentos cruzados posteriores. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Revista Mexicana de Ingeniería Biomédica is the property of Sociedad Mexicana de Ingenieria Biomedica, A.C. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Text: English
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        Type: general
      – SubjectFull: ANTERIOR cruciate ligament injuries
        Type: general
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      – SubjectFull: POLYETHYLENE
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      – SubjectFull: POLYPROPYLENE
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      – SubjectFull: BONE mechanics
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