Fig. 6From: Percutaneous endoscopic unilateral laminotomy and bilateral decompression under 3D real-time image-guided navigation for spinal stenosis in degenerative lumbar kyphoscoliosis patients: an innovative preliminary studySurgeon performs endoscopic laminotomy under precise O-arm navigation. Intraoperative photos show a O-arm navigation images b Endoscopic images and c its introduction: (1) base of spinous process, (2) interlaminar space, (3) right side lateral recess, (4) dura, (5) left side lateral recess, (6) ligamentum flavumBack to article page