[Retracted] Effect of Model Parameters on the Biomechanical Behavior of the Finite Element Cervical Spine Model

Table 4

The maximum strain (%) values on the vertebrae. The first and second values in each cell are based on equation (1) [25] and equation (2) [26], respectively.

Maximum strain value (%)
Number of layer		1	2	3	4	5	6	7	8
Flexion	One-layer model	1.1/1.2
	Two-layer model	1.9/1.1	1.0/0.8
	Four-layer model	1.1/0.4	1.6/0.9	1.0/0.6	0.3/0.5
	Eight-layer model	0.8/0.3	1.0/0.4	0.7/0.7	0.6/0.7	0.6/0.6	0.4/0.6	0.4/0.5	0.2/0.2
Extension	One-layer model	0.8/1.0
	Two-layer model	1.2/0.7	0.7/0.6
	Four-layer model	1.6/0.6	1.0/0.6	0.6/0.5	0.4/0.5
	Eight-layer model	1.1/0.7	0.6/0.4	0.9/0.6	0.9 0.6	0.7/0.6	0.6/0.5	0.4/0.5	0.4/0.2
Lateral bending	One-layer model	0.8/0.8
	Two-layer model	1.5/0.6	0.8/0.4
	Four-layer model	1.0/0.4	1.2/0.4	0.7/0.3	0.4/0.2
	Eight-layer model	0.4/0.1	0.9/0.4	1.2/0.5	1.4/0.6	0.8/0.3	0.4/0.2	0.3/0.2	0.3/0.2
Axial rotation	One-layer model	0.5/0.5
	Two-layer model	0.7/0.3	0.3/0.2
	Four-layer model	0.7/0.3	0.6/0.3	0.3/0.2	0.3/0.2
	Eight-layer model	0.5/0.2	0.6/0.3	0.6/0.2	0.5/0.3	0.4/0.2	0.3/0.2	0.3/0.1	0.2/0.1