Fig. 5From: Percutaneous endoscopic lumbar discectomy: minimally invasive technique for multiple episodes of lumbar disc herniationOne year later, MR images showing left paramedian disc herniation at the L2–3 (a and b). After the PELD, MR images showing complete removal of the disc (c and d). Eighteen months later after second PELD, MR image (e) showing no significant changes of the disc height or any disc degeneration aggravation in comparison with initial MR imagesBack to article page