1.What is “posterior discoscopic minimally invasive surgery system”? Minimally invasive intervertebral disc treatment system is an emerging technology developed by medical science, and its introduction has improved the treatment of lumbar disc herniation, bringing the gospel to the majority of patients, especially those who are afraid of surgery and suffer from back and leg pain can be accepted. Minimally invasive intervertebral disc treatment system is developed and produced by Germany, and China is currently incapable of producing it. The system consists of a display system, cold light source, miniature endoscopic camera system and other microsurgical instruments, and must be treated with the full set of equipment and environment of a large surgical operating room. Patients must be routinely examined before surgery, accurately positioned, strictly disinfected, in the protruding disc segment, open a small hole with an opener like a needle, place a working cannula, import the disc micro camera and light source, and magnify the surgical surface more than 60 times on the 17-inch display for nucleus pulposus removal. 2. What are the features of “posterior discoscopic minimally invasive surgery system”? A 1.7 cm diameter discoscope is inserted into the posterior part of the diseased lumbar plate and the herniated disc is removed endoscopically. Since the operation can be done under the guidance of a slim digital endoscope, the large incision and extensive stripping of normal tissues such as muscles and ligaments around the lumbar spine necessary for conventional surgery are not required. 3.What are the advantages of posterior discoscopic minimally invasive surgery system for lumbar disc herniation? (1) Small trauma: the general skin trauma is about 1cm to 1.8cm, which is one tenth of the conventional traditional surgery. (2) Safety: Since the discoscope micro digital camera system tracks the whole process and magnifies the surgical surface 64 times, the neurovascular is clearly visible on the display through fiber optic transmission, so accidental injury can be avoided. (3) Quick: quick recovery, you can get out of bed and walk after 6 hours of minimally invasive treatment, and you can be discharged from the hospital after 3 days, and the symptoms of back and leg pain can be relieved. (4) Not easy to recur after cure: Minimally invasive discoscopic treatment is extremely traumatic and eliminates the problem of post-operative adhesions, so it is extremely difficult to recur after cure. 4.What are the indications of “posterior discoscopic minimally invasive surgery system”? (1) Patients with lumbar disc herniation for the first time, with severe pain in the lower limbs, difficulty in sleeping at night, difficulty in walking, and unsatisfactory results after conservative treatment. (2) Despite the effectiveness of conservative treatment, the symptoms recur more than twice, the symptoms are severe during the attack, affecting work and life, and the medical history is more than six months. (3) Those with a long history of recurrent attacks, although the symptoms and signs are not very serious, with a clear diagnosis, and those who have a request for surgical treatment. (4) Regardless of the length of history, once out of obvious nerve paralysis damage, such as the big toe dorsal extensor muscle strength of grade 4 or less. (5) Those with central disc herniation combined with cauda equina damage, such as urinary and fecal dysfunction, and CT shows no significant calcification of the disc or posterior longitudinal ligament. (6) Although the history and signs and symptoms of disc herniation are not typical, CT, spinal or epidural imaging, MRI and discography and other influential examinations reveal a huge disc herniation.