|
Outcome
|
Had spinal instability
|
No spinal instability
|
P
|
|---|
|
ODI (%)
|
|
1wk
|
43.61 ± 14.51
|
61.79 ± 18.29
|
0.003
|
|
3mo
|
45.71 ± 12.61
|
69.73 ± 17.92
|
0.001
|
|
1 yr
|
48.89 ± 15.48
|
74.10 ± 16.97
|
< 0.001
|
|
VAS for low back pain (%)
|
|
1wk
|
47.05 ± 6.88
|
57.26 ± 11.53
|
0.002
|
|
3mo
|
45.89 ± 8.76
|
60.88 ± 11.48
|
0.001
|
|
1 yr
|
52.40 ± 8.23
|
65.44 ± 12.96
|
0.003
|
|
VAS for leg pain (%)
|
|
1wk
|
50.88 ± 15.43
|
65.57 ± 16.47
|
0.012
|
|
3mo
|
48.52 ± 16.03
|
69.87 ± 16.95
|
0.003
|
|
1 yr
|
50.62 ± 20.71
|
72.26 ± 18.01
|
0.006
|
|
Outcome
|
Had revision surgery
|
No revision surgery
|
P
|
|
ODI (%)
|
|
1wk
|
46.57 ± 15.68
|
60.17 ± 18.93
|
0.018
|
|
3mo
|
46.95 ± 13.84
|
68.16 ± 18.66
|
0.006
|
|
1 yr
|
48.32 ± 18.56
|
72.86 ± 17.09
|
0.001
|
|
VAS for low back pain (%)
|
|
1wk
|
47.03 ± 8.91
|
56.71 ± 11.29
|
0.009
|
|
3mo
|
46.96 ± 8.68
|
59.84 ± 12.14
|
0.007
|
|
1 yr
|
50.62 ± 9.11
|
65.12 ± 12.56
|
0.003
|
|
VAS for leg pain (%)
|
|
1wk
|
52.19 ± 17.02
|
64.49 ± 16.68
|
0.048
|
|
3mo
|
49.53 ± 17.61
|
68.50 ± 17.55
|
0.018
|
|
1 yr
|
48.38 ± 21.03
|
71.57 ± 18.18
|
0.011
|
- VAS visual analog scale, ODI Oswestry disability index
