Abstract: Lumbar disc herniation in patients with laminectomy or discectomy after lower limb remained intractable pain symptoms. These symptoms of discomfort may be acquired by postoperative spi? nal stenosis，adjacent segment degeneration，intervertebral disc and lumbar spondylolisthesis recurrence caused by epidural scar and other reasons. Among them，the epidural scar（nerve root adhesion，epidural fibrosis）may account for 20% to 36%. Some scholars have studied how to reduce the epidural scar mate? rials or Methods，but also some scholars committed to the treatment of epidural scar after surgery. This paper made a review on the research progress of epidural scar.

Key words: epiduralscar, lumbarsurgery, pain

摘要： 腰椎间盘突出症患者在行椎板切除减压或椎间盘切除术后，仍存留下肢顽固性疼痛不适症状。这些不适的症状有可能由术后获得性椎管狭窄，相邻节段退变，椎间盘复发，腰椎滑脱以及硬膜外瘢痕等原因引起。其中，硬膜外瘢痕（神经根粘连、硬膜外纤维化）可能占20%~36%。有学者研究怎样减少硬膜外瘢痕的材料或方法，也有学者致力于术后硬膜外瘢痕的治疗。本文就硬膜外瘢痕研究进展做一综述。

关键词: 腰椎术后, 疼痛 , 硬膜外瘢痕