From: Determining the learning curve for percutaneous endoscopic lumbar interbody fusion for lumbar degenerative diseases
MacNab criteria outcome
Group A, n (%)
Group B, n (%)
Group C, n (%)
p value
Excellent
18 (58%)
24 (77.4%)
0.20
Good
11 (35.5%)
7 (22.6%)
Fair
0
Poor
2 (6.5%)