I. Intervertebral foraminoscopy technology Intervertebral foraminoscopy is a tube equipped with light, which passes through the intervertebral foramen from the side or the side back of the patient’s body, and enters into the part of herniated discs, and the herniated discs, nerve roots, and dural sacs can be clearly seen under the direct vision of the endoscope. Then all kinds of grasping forceps are used to remove the herniated disc, and radiofrequency electrodes are used to repair the broken annulus fibrosus. Thus, the pressure on the nerve root is completely lifted. What are the advantages of minimally invasive treatment of lumbar intervertebral disc herniation? 1, minimally invasive, small wounds, almost no bleeding, short operating time, no scar after surgery, in line with the aesthetic point of view. 2, the purpose is direct. 2.Purpose direct The surgical effect is consistent with the gold standard of intervertebral disc surgery – microscopic discectomy. 3.Wide range of indications It can deal with almost all types of intervertebral disc herniation, part of spinal stenosis, intervertebral foraminal stenosis, calcification and other bony lesions. Using special radiofrequency electrodes under the speculum, it is feasible to shape the annulus fibrosus and block the annular nerve branch to treat discogenic pain. 4.Low complication Small trauma, low chance of thrombus formation and infection; no scarring in the important structures in the back after the operation, causing adhesion of the spinal canal and nerves. 5.High safety Local anesthesia anesthesia, can interact with the patient during the operation, does not hurt the nerves and blood vessels; basically no bleeding, clear surgical field, greatly reducing the risk of misuse. 6, fast recovery You can go down to the ground the next day after the operation, and resume normal work and physical exercise in 3-6 weeks on average. 7, high efficacy satisfaction Immediately after surgery to relieve pain, numbness and other symptoms, urinary and fecal self-care, simple care; long-term efficacy is good. Intervertebral foramenoscopy technology treatment principle: Intervertebral foramenoscopy through the intervertebral foramen safety triangle, outside the intervertebral disc fibrous ring, complete removal of protruding or prolapsed nucleus pulposus and hyperplasia of the bone to relieve the pressure on the nerve root, eliminating the pain due to the compression of nerves, the surgical method is through the special design of the intervertebral foramenoscopy and the corresponding supporting spinal minimally invasive surgical instrumentation, imaging and image processing systems, etc., a spinal minimally invasive surgical system. A minimally invasive spinal surgery system. While completely removing the protruding or prolapsed nucleus pulposus, it also removes osteophytes, treats spinal stenosis, and can use radiofrequency technology to repair the broken annulus fibrosus. Fourth, intervertebral foramenoscopy technology in minimally invasive spine surgery for the adaptive population: intervertebral foramenoscopy or endoscopic microdiscectomy selection criteria and laminotomy, disc removal selection criteria are not essentially different. Patients with herniated discs selected for minimally invasive surgery must exhibit signs and symptoms of nerve root compression and must meet the following criteria: 1) persistent or recurrent radicular pain; 2) radicular pain heavier than low back pain. If the symptoms of low back pain is greater than leg pain, patients with less than moderate bulging can first do low-temperature plasma myeloplasty; 3. Ineffective after strict conservative treatment. Including the use of steroidal or nonsteroidal anti-inflammatory painkillers, physical therapy, homework or conditional training procedures, it is recommended that at least 4-6 weeks of conservative treatment, but if there is a progressive aggravation of neurological symptoms, then immediate surgery is required; 4. No history of substance abuse and psychological disorders; 5. Positive straight-leg raising test and difficulty in bending over; 6. In order to accurately determine the location and nature of the protruding or prolapsing nucleus pulposus, as well as the intervertebral foraminal osteophytes In order to accurately determine the location and nature of the herniated or prolapsed nucleus pulposus, as well as the osteophytes of the intervertebral foramen, a thorough imaging examination should be carried out prior to the surgery. V. Comparison of intervertebral foramenoscopy with other treatments: Compared with indirect decompression techniques such as mechanical excision and decompression of the nucleus pulposus, chemical nucleus pulposus dissolution or laser gasification, intervertebral foramenoscopy disc removal is a direct technique for targeted excision of protruding disc fragments and decompression of the nerve root. Although posterior discoscopy (MED), which has been widely recognized in recent years, can be applied to various types of lumbar disc herniation, its minimally invasive nature is limited because its surgical access and surgical procedure are the same as that of small-incision open surgery, which requires paraspinal muscle access and implementation of vertebral plate opening and resection of the muscular ligamentous and osseous structures. Intervertebral foraminoscopy has the obvious advantages of less trauma, less bleeding, easier anesthesia, faster postoperative recovery, and less financial burden.