关键词: 腰椎术后, 疼痛 , 硬膜外瘢痕

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