Table 7.

Used cages

Level	Full extension lateral view	Used cage
L1–2	9.93±1.93	11.00±1.74
L2–3	10.16±1.75	11.50±1.00
L3–4	10.19±2.26	11.33±2.06
L4–5	11.49±2.46	11.20±1.09
L5–S1	10.29±3.71	10.00±2.82

Values are presented as mean±standard deviation.