Table 8.

Distribution of RF levels to the groups (n).

Levels of ablation	Group 1		Group 2
	Procedure (n)	Levels (n)	Procedur (n)	Levels (n)
Right L2–5	5	20	2	8
Left L2–5	3	12	4	16
Bilateral L2–5	8	64	3	24
Right L3-4	9	18	4	8
Left L3-4	8	16	3	6
Bilateral L3-4	12	48	5	20
Right L3–5	7	21	6	18
Left L3–5	5	15	7	21
Bilateral L3–5	18	108	9	54
Total	75	322	43	167