Abstract
The knee meniscus is instrumental to stability, shock absorption, load transmission and stress distribution within the knee joint. Such functions are mechanically demanding, and replacement constructs used in meniscus repair often fail because of a poor match with the surrounding tissue. This study focused on the native structure–mechanics relationships and on their anisotropic behavior in meniscus, to define the target biomechanical viscoelastic properties required by scaffolds upon loading.
To show regional orientation of the collagen fibers and their viscoelastic behavior, bovine lateral menisci were characterized by second harmonic generation microscopy and through time-dependent mechanical tests. Furthermore, their dynamic viscoelastic response was analyzed over a wide range of frequencies.
Multilevel characterization aims to expand the biomimetic approach from the structure itself, to include the mechanical characteristics that give the meniscus its peculiar properties, thus providing tools for the design of novel, effective scaffolds. An example of modeling of anisotropic open-cell porous material tailored to fulfill the measured requirements is presented, leading to a definition of additional parameters for a better understanding of the load transmission mechanism and for better scaffold functionality.
J Appl Biomater Funct Mater 2017; 15(1): e77 - e83
Article Type: ORIGINAL RESEARCH ARTICLE
DOI:10.5301/jabfm.5000319
Authors
Luca Coluccino, Chiara Peres, Riccardo Gottardi, Paolo Bianchini, Alberto Diaspro, Luca CeseracciuArticle History
- • Accepted on 30/05/2016
- • Available online on 14/09/2016
- • Published online on 26/01/2017
Disclosures
This article is available as full text PDF.
Authors
- Coluccino, Luca [PubMed] [Google Scholar] 1, 2
- Peres, Chiara [PubMed] [Google Scholar] 1
- Gottardi, Riccardo [PubMed] [Google Scholar] 3, 4
- Bianchini, Paolo [PubMed] [Google Scholar] 1
- Diaspro, Alberto [PubMed] [Google Scholar] 1
- Ceseracciu, Luca [PubMed] [Google Scholar] 1, * Corresponding Author ([email protected])
Affiliations
-
Nanophysics Department, Istituto Italiano di Tecnologia, Genoa - Italy -
IEIIT Institute, National Research Council of Italy, Genoa - Italy -
Department of Orthopaedic Surgery, Center for Cellular and Molecular Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania - USA -
Ri.MED Foundation, Palermo - Italy
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