Similar to a spinal endoscope, an intervertebral foramoscope is a light-equipped tube that enters the intervertebral foramen from the side or side and back of the patient’s body (either in a flat or oblique fashion) and performs the procedure in a safe working triangle. The procedure is performed outside the disc’s fibrous annulus, and the herniated nucleus pulposus, nerve roots, dural sac and hyperplastic bone tissue can be clearly seen under direct endoscopic vision. The herniated tissue is then removed using various types of grasping forceps, the bone is removed microscopically, and the broken fibrous annulus is repaired with radiofrequency electrodes. The surgical trauma is small: the skin incision is only 7mm, like the size of a soybean grain, bleeding is less than 20ml, and only 1 stitch is needed after the operation. It is the minimally invasive treatment for disc herniation with the least trauma and the best effect among similar surgeries. The selection criteria for intervertebral foraminoscopic or endoscopic microdiscectomy are not fundamentally different from those for laminectomy and disc removal. Patients with herniated discs selected for minimally invasive surgery must exhibit signs and symptoms of nerve root compression and must meet the following conditions: 1. Persistent or recurrent radicular pain. 2. The radicular pain is more severe than the lumbar pain. If the symptoms of lumbar pain are greater than leg pain in patients with moderate or less bulging can first do cryogenic plasma meduloplasty. 3.Invalidated by strict conservative treatment. Including the use of steroidal or non-steroidal anti-inflammatory painkillers, physical therapy, homework or condition training procedures, conservative treatment is recommended for at least 4-6 weeks, but if there is a progressive worsening of neurological symptoms, immediate surgery is required. 4. No history of substance abuse or psychological disorders. 5, Positive straight leg raise test and difficulty bending. 6, In order to precisely determine the location and nature of the herniated or prolapsed nucleus pulposus, as well as the intervertebral foraminal osteophytes, a thorough imaging examination should be performed before surgery, especially CT and MRI are important means to precisely determine the size, location and nature of the nucleus pulposus. Second, technical advantages: 1, safe and green Through the lateral approach to reach the target area, to avoid the interference of the traditional posterior surgery on the spinal canal and nerves, without biting off the vertebral plate, without destroying the paravertebral muscles and ligaments, with no effect on the stability of the spine. 2.Repair function Multi-angle bipolar radiofrequency electrode can directly ablate the nucleus pulposus and repair the ruptured annulus fibrosus under low temperature. 3.The purpose is direct The herniated nucleus pulposus is accurately removed under the microscope, and the surgical effect is consistent with the gold standard of intervertebral disc surgery – microscopic discectomy. 4.Wide indications Can deal with almost all types of disc herniation, some spinal stenosis, foraminal stenosis, calcification and other bony lesions. The use of special radiofrequency electrodes under the scope can shape the fiber ring and block the annular nerve branches to treat disc-derived pain. 5.Low complications Intraoperative can eliminate edema and sterile inflammation of nerve roots and prevent postoperative infection outside the disc, with little trauma and low chance of forming thrombosis and infection, and will not leave scar at important structures in the posterior after surgery, causing adhesion of spinal canal and nerve. 6.High safety Local anesthesia, the ability to interact with the patient during the operation, no injury to nerves and blood vessels, basically no bleeding, clear surgical field of vision, greatly reducing the risk of misoperation. 7.Rapid recovery The next day after surgery, you can go down to the ground and resume normal work and physical exercise in 3-6 weeks on average.