Parameter	Preop	Post op	P value	3 months	P value	Final follow up	Pvalue
Visual analogue scale(VAS)	7.51±0.99	2.76±0.71	<0.0001	1.96±0.83	<0.0001	1.73±0.85	<0.0001
Oswestry disability index(ODI)	69.66±8.25	34.41±5.32	<0.0001	26.47±5.56	<0.0001	23.15±5.83	<0.0001