From: Comparative effectiveness of two different interbody fusion methods for transforaminal lumbar interbody fusion: cage versus morselized impacted bone grafts
Group 1
Group 2
Statistics
No. of cases
84
96
sex: M/F
32/52
37/59
NSa
Mean age(years)
51(31–68)
53(29–69)
Meanfollow-up(years)
43(36–49)
30(24–40)
ODI
42(32–65)
45(33–67)
levels (n)
L4/5
61
67
L5/S1
23
29