Fig. 2From: Follow-up results of microendoscopic discectomy compared to day surgery using percutaneous endoscopic lumbar discectomy for the treatment of lumbar disc herniationCT and MRI images. a-c MRI and CT show L5-S1 discal hernia before surgery; d-f MRI and CT show the herniated nucleus pulposus is removed after surgery. CT, computed tomography; MRI, magnetic resonance imagingBack to article page