Fig. 1From: Lumbar degenerative disease treated by percutaneous endoscopic transforaminal lumbar interbody fusion or minimally invasive surgery-transforaminal lumbar interbody fusion: a case-matched comparative studyA Intraoperative endoscopic image shows excellent bone graft bed in the intervertebral space. B The mixture of autogenous bone and allograft bone has been prepared for bone graft. C Intraoperative endoscopic image shows decompression of central canal and lateral recess, with good implantation of cage. D Skin incisions for the PETLIF procedureBack to article page