Fig. 1From: Percutaneous transforaminal endoscopic surgery (PTES) for symptomatic lumbar disc herniation: a surgical technique, outcome, and complications in 209 consecutive cases a Sagittal and b axial MR images showed L4/5 recurrent herniation after decompression and fusion in 61-year-old woman. During the procedure of PTES, c posteoanterior and d lateral C-arm image confirmed that a 7.5-mm working cannula was advanced directly to the protruding fragmentBack to article page