Table 1.

Rotations in degree (°) 1 week, 6 and 12 months after surgery for the treated segment

Rotations (deg)	1 week		6 months		12 months
	Prosthesis	Fusion	Prosthesis	Fusion	Prosthesis	Fusion
Extension	4.75 (0.85)	1.3 (0.98)	3.64 (1.8)	0.82 (0.26)	2.08 (1.13)	0.81 (0.26)
Right-sided rotation	5.88 (1.65)	1.35 (0.36)	4.37 (2.27)	0.61 (0.3)	3.07 (1.38)	0.62 (0.3)
Right-sided bending	2.6 (0.95)	0.85 (0.62)	1.27 (0.65)	0.56 (0.28)	0.9 (0.5)	0.56 (0.28)

Mean value and standard deviation are given for each time