From: Percutaneous endoscopic lumbar discectomy for single and double segment lumbar disc herniation with sciatic scoliosis in adults: a retrospective study
Single-segment group
Double-segment group
1 month
3 months
12 months
Final follow-up
Excellent
28
35
41
48
8
11
16
19
Good
23
17
12
5
10
2
Fair
1
0
Poor