From: Efficacy and radiographic analysis of oblique lumbar interbody fusion for degenerative lumbar spondylolisthesis
OLIF group
PLIF group
P value
Operation time
131.3 min ± 14.6 min
156.9 min ± 37.4 min
P < 0.001
Amount of bleeding
163.6 ml ± 63.9 ml
496.8 ml ± 122.6 ml
Incision length
4.63 cm ± 0.57 cm
11.83 cm ± 1.37 cm