Table 1.

L4–L5 and lumbo-sacral motion: no significant difference of mobility depending on follow-up

Follow-up	Number of patients	L4–L5 (°)	p-value	L5–S1 (°)	p-value
0–5 years	7	13.8 ± 6.23	>0.05	12.8 ± 5.84	>0.05
5–10 years	11	9 ± 5	>0.05	7.2 ± 2.7	=0.04
10–15 years	10	13 ± 6.5	>0.05	10.9 ± 7.4	>0.05
15–20 years	6	14.8 ± 5	>0.05	10.3 ± 6.2	>0.05
>20 years	1	5		7