Sensitivity of the simulated knee joint mechanics to the selected human and bovine fibril-reinforced poroelastic material properties
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Sensitivity of the simulated knee joint mechanics to the selected human and bovine fibril-reinforced poroelastic material properties. / Jahangir, Sana; Esrafilian, Amir; Ebrahimi, Mohammadhossein; Stenroth, Lauri; Alkjær, Tine; Henriksen, Marius; Englund, Martin; Mononen, Mika E.; Korhonen, Rami K.; Tanska, Petri.
In: Journal of Biomechanics, Vol. 160, 111800, 2023.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Sensitivity of the simulated knee joint mechanics to the selected human and bovine fibril-reinforced poroelastic material properties
AU - Jahangir, Sana
AU - Esrafilian, Amir
AU - Ebrahimi, Mohammadhossein
AU - Stenroth, Lauri
AU - Alkjær, Tine
AU - Henriksen, Marius
AU - Englund, Martin
AU - Mononen, Mika E.
AU - Korhonen, Rami K.
AU - Tanska, Petri
PY - 2023
Y1 - 2023
N2 - ibril-reinforced poroviscoelastic material models are considered state-of-the-art in modeling articular cartilage biomechanics. Yet, cartilage material parameters are often based on bovine tissue properties in computational knee joint models, although bovine properties are distinctly different from those of humans. Thus, we aimed to investigate how cartilage mechanical responses are affected in the knee joint model during walking when fibril-reinforced poroviscoelastic properties of cartilage are based on human data instead of bovine. We constructed a finite element knee joint model in which tibial and femoral cartilages were modeled as fibril-reinforced poroviscoelastic material using either human or bovine data. Joint loading was based on subject-specific gait data. The resulting mechanical responses of knee cartilage were compared between the knee joint models with human or bovine fibril-reinforced poroviscoelastic cartilage properties. Furthermore, we conducted a sensitivity analysis to determine which fibril-reinforced poroviscoelastic material parameters have the greatest impact on cartilage mechanical responses in the knee joint during walking. In general, bovine cartilage properties yielded greater maximum principal stresses and fluid pressures (both up to 30%) when compared to the human cartilage properties during the loading response in both femoral and tibial cartilage sites. Cartilage mechanical responses were very sensitive to the collagen fibril-related material parameter variations during walking while they were unresponsive to proteoglycan matrix or fluid flow-related material parameter variations. Taken together, human cartilage material properties should be accounted for when the goal is to compare absolute mechanical responses of knee joint cartilage as bovine material parameters lead to substantially different cartilage mechanical responses.
AB - ibril-reinforced poroviscoelastic material models are considered state-of-the-art in modeling articular cartilage biomechanics. Yet, cartilage material parameters are often based on bovine tissue properties in computational knee joint models, although bovine properties are distinctly different from those of humans. Thus, we aimed to investigate how cartilage mechanical responses are affected in the knee joint model during walking when fibril-reinforced poroviscoelastic properties of cartilage are based on human data instead of bovine. We constructed a finite element knee joint model in which tibial and femoral cartilages were modeled as fibril-reinforced poroviscoelastic material using either human or bovine data. Joint loading was based on subject-specific gait data. The resulting mechanical responses of knee cartilage were compared between the knee joint models with human or bovine fibril-reinforced poroviscoelastic cartilage properties. Furthermore, we conducted a sensitivity analysis to determine which fibril-reinforced poroviscoelastic material parameters have the greatest impact on cartilage mechanical responses in the knee joint during walking. In general, bovine cartilage properties yielded greater maximum principal stresses and fluid pressures (both up to 30%) when compared to the human cartilage properties during the loading response in both femoral and tibial cartilage sites. Cartilage mechanical responses were very sensitive to the collagen fibril-related material parameter variations during walking while they were unresponsive to proteoglycan matrix or fluid flow-related material parameter variations. Taken together, human cartilage material properties should be accounted for when the goal is to compare absolute mechanical responses of knee joint cartilage as bovine material parameters lead to substantially different cartilage mechanical responses.
KW - Finite element modeling
KW - articular cartilage
KW - fibril-reinforced poroelastic
KW - material properties
KW - knee joint
U2 - 10.1016/j.jbiomech.2023.111800
DO - 10.1016/j.jbiomech.2023.111800
M3 - Journal article
C2 - 37797566
VL - 160
JO - Journal of Biomechanics
JF - Journal of Biomechanics
SN - 0021-9290
M1 - 111800
ER -
ID: 367088468