Table 2.

Distribution of RF levels (n)

Levels of ablation	Procedure (n)	Levels (n)
Right L2–5	4	16
Left L2–5	3	12
Bilateral L2–5	9	72
Right L4–5	7	14
Left L4–5	8	16
Bilateral L4–5	11	44
Right L3–5	6	18
Left L3–5	5	15
Bilateral L3–5	7	42
Total	60	249