关键词: 内镜, 椎间孔镜技术, 椎间盘镜技术, 腰椎间盘突出症

Abstract: ［Abstract］ Lumbar disc herniation（LDH） is one of the most common diseases in spine surgery and also a common cause of chronic lumbago and leg pain. With the development of medical science and technology， minimally invasive technology has become a major development direction for the treatment of lumbar disc herniation besides the classical open decompression surgery. In the current stage of clinical application， minimally invasive endoscopic surgery is mainly used for the treatment of the disease， include microendoscopic discectomy （MED） and percutaneous transforaminal endoscopic discectomy （PTED）. Compared with the traditional open operation， there is no doubt that the application of endoscopy has a series of obvious advantages such as light tissue destruction， less bleeding in the operation， and rapid recovery after operation. However， Spinal endoscopy is also limited， such as narrow scope of application and strict operation. Although minimally invasive endoscopy is the same， the principles and indications of MED and PTED are different. The purpose of this paper is to make a detailed comparison and summary of the two technologies.

Key words: microendoscopic discectomy （MED）, lumbar disc herniation （LDH）, percutaneous transforaminal endoscopic discectomy （PTED）, Endoscope