Fig. 16From: Unilateral biportal endoscopic lumbar interbody fusion (ULIF) versus endoscopic transforaminal lumbar interbody fusion (Endo-TLIF) in the treatment of lumbar spinal stenosis along with intervertebral disc herniation: a retrospective analysisA, B Area of spinal canal measured by Image J before and after surgery in a patient of the ULIF group; C, D Area of spinal canal measured by Image J before and after surgery in a patient of the Endo-TLIF groupBack to article page