Designing Artificial Anterior Cruciate Ligaments Based on Novel Fibrous Structures

• Tipo: Artigo em Revista Científica Internacional
• Data: 2014

Autores

Cruz, J (Autor) Outra; Rana, S (Autor) Outra; Fangueiro, R (Autor) Outra; Guedes, R (Autor) FEUP

Revista

Título: Fibers and Polymers

Vol. 15

Páginas: 181-186

ISSN: 1229-9197

Editora: KOREAN FIBER SOCIETY

Indexação

ISI Web of Knowledge - 8 Citações

Scopus - 9 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia dos materiais

Outras Informações

ID Authenticus: P-009-4GE

DOI: 10.1007/s12221-014-0181-4

Abstract (EN): The present paper reports the development of novel braided structures using polyamide 6.6 fibers for application as artificial anterior cruciate ligaments (ACLs). The developed structures were circular braids, axially reinforced with either a number of core yarns or braided structures. Tensile behavior of these structures was characterized and the effects of number of axial yarns or braids and, the number of yarns used in the axial braids were thoroughly investigated. From the experimental results, it was observed that the braided structures with axial braids could mimic the load-elongation behaviour of native ACL. The average breaking extension and strain at toe region were 30 % and 4.3 % respectively, which are in the range of native ACLs. The maximum breaking force and stiffness achieved with 7 axial braids, each produced using 6 yarns were 274 N and 13.5 N/mm respectively and, both breaking force and stiffess showed linear increase with the number of axial braids as well as number of yarns used in the axial braids. Therefore, it is possible to design an artificial graft using these novel braided sturctures with mechanical properties similar to that of native ACLs, through adjustment of these structural parameters, as these braided structures have much smaller diameter (0.5 mm) than native ACLs (11 mm).

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6