Characterization of articular cartilage by combining microscopic analysis with a fibril-reinforced finite-element model

Julkunen, Petro; Kiviranta, Panu; Wilson, W.; Jurvelin, Jukka S.; Korhonen, Rami K.

doi:10.1016/j.jbiomech.2006.07.026

Cited by 157 publications

(174 citation statements)

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“…Mechanical properties of collagen fibers and proteoglycan matrix have been reported by several authors [24][25][26][27]. Table 1 shows experimental measurements of mechanical properties of collagen fibers and proteoglycan matrix used in this study [28][29][30].…”

Section: Mechanical Properties Of the Transition Zonementioning

confidence: 94%

A depth dependent transversely isotropic micromechanic model of articular cartilage

Elhamian

Alizadeh

Shokrieh

et al. 2015

J Mater Sci: Mater Med

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Section: Mechanical Properties Of the Transition Zonementioning

confidence: 94%

A depth dependent transversely isotropic micromechanic model of articular cartilage

Elhamian

Alizadeh

Shokrieh

et al. 2015

J Mater Sci: Mater Med

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“…Julkunen et al 2007Julkunen et al , 2009bWilson et al 2005aWilson et al , 2006bWilson et al , 2007. Briefly, this is a biphasic model with the solid phase divided into a viscoelastic fibrillar part that represents the collagen network and a viscoelastic non-fibrillar part that represents the remainder of the extracellular matrix.…”

Section: Methodsmentioning

confidence: 99%

“…Ateshian et al 2009;Li et al 2002b;Korhonen and Herzog 2008;Wilson et al 2006b), effects of different collagen fibril orientations can be investigated with all other parameters constant. The Fibril Reinforced Poro-Viscoelastic Swelling (FRPVS) model for AC is such a compositional-based model that can model realistic collagen fibril orientations (Wilson et al , 2005a(Wilson et al , 2006bJulkunen et al 2007). Wilson et al (2007) used the FRPVS model to simulate the confined compression experiments on adult bovine AC by Schinagl et al (1997).…”

Section: Introductionmentioning

confidence: 99%

Contribution of postnatal collagen reorientation to depth-dependent mechanical properties of articular cartilage

Turnhout

Kranenbarg

Leeuwen

2010

Biomech Model Mechanobiol

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The collagen fibril network is an important factor for the depth-dependent mechanical behaviour of adult articular cartilage (AC). Recent studies show that collagen orientation is parallel to the articular surface throughout the tissue depth in perinatal animals, and that the collagen orientations transform to a depth-dependent arcade-like structure in adult animals. Current understanding on the mechanobiology of postnatal AC development is incomplete. In the current paper, we investigate the contribution of collagen fibril orientation changes to the depth-dependent mechanical properties of AC. We use a composition-based finite element model to simulate in a 1-D confined compression geometry the effects of ten different collagen orientation patterns that were measured in developing sheep. In initial postnatal life, AC is mostly subject to growth and we observe only small changes in depthdependent mechanical behaviour. Functional adaptation of depth-dependent mechanical behaviour of AC takes place in the second half of life before puberty. Changes in fibril orientation alone increase cartilage stiffness during development through the modulation of swelling strains and osmotic pressures. Changes in stiffness are most pronounced for small stresses and for cartilage adjacent to the bone. We hypothesize that postnatal changes in collagen fibril orientation induce mechanical effects that in turn promote these changes. We further hypothesize that a part of the depth-dependent postnatal increase in collagen content in literature is initiated by the depth-dependent postnatal increase in fibril strain due to collagen fibril reorientation.

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“…The wall of the growing pollen tube was represented with a shell of uniform thickness (Box 2) but spatially varying material properties. The apical dome was divided into hoop-shaped subregions in which the elastic modulus (Box 3; Boudaoud, 2010;Dumais, 2013;Niklas, 1992;Huang et al, 2012;Julkunen et al, 2007;Kha et al, 2010;Sun, 2006;Zerzour et al, 2009) could be assigned independently ( Fig. 2A).…”

Section: Fe Modeling Of Tip Growthmentioning

confidence: 99%

Finite Element Modeling of Shape Changes in Plant Cells

Bidhendi

Geitmann

2017

Plant Physiol.

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Characterization of articular cartilage by combining microscopic analysis with a fibril-reinforced finite-element model

Cited by 157 publications

References 50 publications

A depth dependent transversely isotropic micromechanic model of articular cartilage

A depth dependent transversely isotropic micromechanic model of articular cartilage

Contribution of postnatal collagen reorientation to depth-dependent mechanical properties of articular cartilage

Finite Element Modeling of Shape Changes in Plant Cells

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