From: Efficacy and radiographic analysis of oblique lumbar interbody fusion for degenerative lumbar spondylolisthesis
OLIF
PLIF
P value
Follow-up, months
18.00 ± 2.87
18.87 ± 3.47
0.255
Average age, years
60.0 ± 9.3
57.3 ± 7.0
0.235
Gender
0.513
Male
9
17
Female
22
30
Fused segments
0.676
Single level
26
41
Double level
5
6