Structure Design and Optimization of the C5–C6 Cervical Intervertebral Fusion Cage Using the Anterior Cervical Plate and Cage Fixation System

13 July 2020: Clinical Research

Jiajia Wang ^12AE , Zhihui Qian ^2BC* , Changlei Cui ^3D , Zhijun Guo ^4F , Luquan Ren ^2G

DOI: 10.12659/MSM.924236

Med Sci Monit 2020; 26:e924236

Table 5 The calculation results of regression coefficients.

No.	x0	x1(z1)	x2(z2)	x3(z3)	x1x2	x1x3	x2x3	x12	x22	x32	yi
1	1	1 (0.595)	1 (1.696)	1 (2.0946)	1	1	1	1	1	1	2.332
2	1	1 (0.5946)	1 (1.696)	−1 (0.9054)	1	−1	−1	1	1	1	2.437
3	1	1 (0.5946)	−1 (0.804)	1 (2.0946)	−1	1	−1	1	1	1	2.396
4	1	1 (0.5946)	−1 (0.804)	−1 (0.9054)	−1	−1	1	1	1	1	2.448
5	1	−1 (−0.5946)	1 (1.696)	1 (2.0946)	−1	−1	1	1	1	1	2.208
6	1	−1 (−0.5946)	1 (1.696)	−1 (0.9054)	−1	1	−1	1	1	1	2.369
7	1	−1 (−0.5946)	−1 (0.804)	1 (2.0946)	1	−1	−1	1	1	1	2.307
8	1	−1 (−0.5946)	−1 (0.804)	−1 (0.9054)	1	1	1	1	1	1	2.418
9	1	−1.6818 (−1)	0 (1.25)	0 (1.5)	0	0	0	2.8284	0	0	2.346
10	1	r (1)	0 (1.25)	0 (1.5)	0	0	0	0	0	0	2.415
11	1	0 (0)	−1.6818 (0.5)	0 (1.5)	0	0	0	0	2.8284	0	2.408
12	1	0 (0)	1.6818 (2)	0 (1.5)	0	0	0	0	2.8284	0	2.348
13	1	0 (0)	0 (1.25)	−1.6818 (0.5)	0	0	0	0	0	2.8284	2.443
14	1	0 (0)	0 (1.25)	1.6818 (2.5)	0	0	0	0	0	2.8284	2.274
15	1	0 (0)	0 (1.25)	0 (1.5)	0	0	0	0	0	0	2.396
16	1	0 (0)	0 (1.25)	0 (1.5)	0	0	0	0	0	0	2.414
17	1	0 (0)	0 (1.25)	0 (1.5)	0	0	0	0	0	0	2.359
18	1	0 (0)	0 (1.25)	0 (1.5)	0	0	0	0	0	0	2.377
19	1	0 (0)	0 (1.25)	0 (1.5)	0	0	0	0	0	0	2.432
20	1	0 (0)	0 (1.25)	0 (1.5)	0	0	0	0	0	0	2.374
	20	13.6569	13.6569	13.6569	8	8	8	15.9998	23.9997	23.9997	225.7753
	47.501	0.4270442	−0.3239	−0.7132	0.073	0.115	−0.103	25.5504	32.3669	32.2566
	2.3922	0.0313	−0.0237	−0.0522	0.0091	0.0144	−0.00129	−0.4795	−0.0534	−0.0603
	113.6319	0.0134	0.0077	0.0372	0.0007	0.0017	0.0013	−12.2506	−1.7297	−1.9461
	252.4379	2.2200	1.6815	3.7036	0	0.0001	0.0001	0.0029	0.0003	0.0004
	0.001	0.1	0.2	0.02	–	–	–	–	–	–