Fig. 5From: Comparison of minimally invasive transforaminal lumbar interbody fusion (Mis-TLIF) with bilateral decompression via unilateral approach and open-TLIF with bilateral decompression for degenerative lumbar diseases: a retrospective cohort studyA epidural hematoma at operation area (in the red circle) and compressed nerve (in the yellow circle). B after removing the epidural hematoma, a drainage tube was placed close to the decompression site (white arrow)Back to article page