Table 5
Preoperative and postoperative NDI scores and the net change in these three groups.
NDI scores
Preop
Postop
Change
p value
Maintained Group
42.8
30.8
12
0.004
Restored Group
50.4
19.4
31
0.007
Kyphotic Group
46.3
32.6
13.7
0.114