Table 4

VAS, ODI and SF-36 Physical Component Scores in Patients Undergoing Posterior Nonfusion Stabilization

	VAS Scores			ODI			SF-36 Physical Component Score

	Midline	Paraspinal	P value	Midline	Paraspinal	P value	Midline	Paraspinal	P value
Pre-op	65	90		55	68		34	28.56
6 weeks	35.62	30	0.64	50	50	0.50	30.38	30.38	0.50
3 months	30.63	20	0.82	29.1	25	0.62	36.78	36.78	0.42
6 months	30.81	25	0.93	25.6	25	0.62	36	36	0.39
12 months	24	20	0.98	20.2	20	0.61	38	35.4	0.21
18 months	22	25	0.95	22	22	0.60	38	34	0.09
2 years	24	22	1.00	20.4	22	0.52	36	34	0.05

Note. ODI—Oswestry Disability Index; VAS—Visual Analog Scale.