Table 2.

Radiographic outcomes

	Angular range of motion [°] §	AP translation [mm] §	Intervertebral disc height [mm] §
Preoperative	4.0 ± 4.0 (0.1–14.7)	0.8 ± 0.7 (0.1–3.0)	6.3 ± 2.3
1–5 days	-	-	8.0 ± 1.9
3 months	1.6 ± 1.5 (0.0–7.1)	0.5 ± 0.5 (0.0–2.2)	6.9 ± 1.8
6 months	1.3 ± 1.3 (0.0–5.7)	0.4 ± 0.5 (0.0–2.3)	6.5 ± 2.1
12 months	0.8 ± 0.6 (0.0–2.4)	0.3 ± 0.3 (0.0–1.2)	6.4 ± 1.9
24 months	0.8 ± 0.8 (0.0–4.1)	0.3 ± 0.3 (0.0–1.0)	6.1 ± 1.9

§ Expressed as mean ± standard deviation (range)