Table 5.

Rotations in (deg) postoperatively and 3, 6, 12, and 24 weeks

Rotation (deg)	Postop		3 weeks		6 weeks		12 weeks		24 weeks
	Prosthesis	ACDF	Prosthesis	ACDF	Prosthesis	ACDF	Prosthesis	ACDF	Prosthesis	ACDF
Extension (deg)	5.77 (1.6)	2.1 (1.73)	3.79 (2,0)	2.06 (0.89)	2.67 (1.4)	0.92 (0.83)	2.79 (1.7)	0.94 (0.90)	2.36 (1.0)	0.95 (0.80)
Right-sided motion (deg)	2.5 (1,5)	2.20 (1.80)	4.83 (0.9)	1.53 (1.20)	2.13 (1.2)	1.35 (0.81)	3.07 (1.5)	0.82 (0.72)	2.56 (0.7)	0.79 (0.64)
Right-sided bending (deg)	3.15 (2.1)	1.22 (1.14)	3.24 (1.0)	0.91 (0.72)	2.06 (0.6)	0.76 (0.57)	2.24 (1.0)	0.72 (0.39)	2.24 (1.3)	0.74 (0.44)

Mean value and standard deviation (SD) are given for each time