Table 3

Patient VAS and ODI scores at preoperative and postoperative time points.

	VAS				ODI
Patient number	Preop	6-mo Postop	12-mo Postop	24-mo Postop	Preop	6-mo Postop	12-mo Postop	24-mo Postop
1	7	3	1	1	72	26	6	8
2	7	3	1	0	66	26	16	10
3	6	2	0	0	56	28	12	8
4	7	3	2	0	66	36	16	16
5	8	1	1	1	58	16	10	10
6	7	2	0	2	72	18	12	8
7	7	3	0	1	74	26	8	6
8	5	4	2	0	72	24	26	8
9	6	4	4	4	68	56	58	52
10	8	1	1	0	68	18	8	8
11	6	3	2	1	66	16	8	12
12	7	2	0	1	72	26	8	6
13	8	2	1	2	76	28	2	2
14	7	2	2	1	62	32	6	8
15	8	2	1	1	76	32	8	2
16	6	4	1	2	76	36	4	4
17	7	3	1	1	58	26	2	20
18	7	2	0	2	76	26	6	8
19	8	1	0	1	72	28	8	2
20	7	2	1	1	58	26	8	6
21	6	1	1	0	62	26	4	4
22	7	3	1	1	58	36	4	2
23	7	1	1	0	60	16	12	18
24	6	3	2	1	72	30	2	2
25	7	2	0	0	72	16	12	8
Mean	6.88	2.36	1.04	0.96	67.52	26.96	10.64	9.52

Abbreviations: ODI, Oswestry Disability Index; Postop, postoperative; Preop, preoperative; VAS, visual analog scale.