Table 3.

VAS back score, VAS leg score, and ODI score in each follow-up time.

Variables	Before operation	Three months after the operation	Twelve months after the operation	Final follow-up
VAS back score	7.82 ± 0.96	2.91 ± 0.61#	2.00 ± 0.54&	1.14 ± 0.71※
VAS leg score	8.59 ± 1.05	2.73 ± 0.46#	1.77 ± 0.69&	0.95 ± 0.72※
ODI score (%)	71.18 ± 7.90	36.55 ± 5.17#	23.36 ± 5.25&	16.91 ± 4.13※

VAS: visual analog scale; ODI: Oswestry disability index.

^#Compared with preoperative score.

^&Compared with preoperative score.

^※Compared with preoperative score.