Table 3.

Functional outcomes after treatment

ODI	RFA group (n = 36)	Endoscope group (n = 36)	p-value
Preoperation	21.17 ± 3.90	20.8 ± 0 4.19	0.707
After 1 month	7.56 ± 6.03	4.64 ± 4.71	0.023*
After 3 months	7.14 ± 5.98	4.89 ± 5.89	0.129
After 6 months	9.64 ± 7.92	5.11 ± 6.51	0.017*
After 12 months	13.42 ± 8.79	5.25 ± 6.54	< 0.001*
p-value	< 0.001	< 0.001

Values are presented as mean±standard deviation.

ODI, Oswestry Disability Index; RFA, radiofrequency ablation.

^*p<0.05, statistically significant differences.