Table 2
Clinical outcomes
Variable
Open
MIS
P
value
N
Mean
SD
N
Mean
SD
ODI at baseline
30
51.33
15.85
28
36.90
15.04
.0011
*
ODI at 1 y
29
33.68
18.84
28
18.91
17.85
.0028
*
↵
*
Whitney-Mann test.