The importance of intervertebral disc material model on the prediction of mechanical function of the cervical spine

Table 2 Material properties of ligaments, IVD collagen fibers, and facet cartilages for C2-C3 FSU model. E = Young Modulus, ν = Poisson Ratio

Ligaments (Prony Series Viscoelastic Model), \( {\boldsymbol{g}}_{\boldsymbol{R}}=\mathbf{1}-{\sum}_{\boldsymbol{i}=\mathbf{1}}^{\mathbf{3}}{\boldsymbol{g}}_{\boldsymbol{i}}\left(\mathbf{1}-{\boldsymbol{e}}^{-\frac{\boldsymbol{t}}{{\boldsymbol{\tau}}_{\boldsymbol{i}}}}\right) \)
Prony Series Variables	i = 1	i = 2	i = 3	Reference
τ_i	0.3991	0.3605	0.1082	[54]
G_i	0.7	0.149	0.15
t_i	3.4519	2000	7000
	Material Properties
Ligaments	ALL	E (MPa)	11.4	[55]
	ALL	ν	0.4	[55]
	CL	E (MPa)	7.7	[56]
	CL	ν	0.4	[56]
	ISL	E (MPa)	4.7	[52, 57]
	ISL	ν	0.4	[52, 57]
	ITL	E (MPa)	4.7	[52, 57]
	ITL	ν	0.4	[52, 57]
	LF	E (MPa)	4.2	[58]
	LF	ν	0.4	[58]
	PLL	E (MPa)	9.12	[58]
	PLL	ν	0.4	[58]
Collagen Fibers	E (MPa)		100	[20]
Collagen Fibers	ν		0.3	[20]
Facet Cartilage	E (MPa)		11	[32]
Facet Cartilage	ν		0.4	[32]

ISSN: 1471-2474