Treatment principle Under local anesthesia, a small 1.5 cm hole is made in the patient’s back, a posterior discoscope and fine surgical instruments are placed, and the disc is magnified 50 times under a digital TV microscope using endoscopic technology to subconsciously remove the hyperplastic bone spurs and protruding discs of the ligamentum flavum in the inner layer of the spinal canal. The lesion is clearly visualized on the digital TV screen and removed under direct vision, which greatly improves the therapeutic effect while maximizing the protection of the patient’s ability to work. Technical advantages 1. The procedure is performed under conscious local anesthesia and visualization, with high surgical safety. 2, minimal trauma to the skin and muscles, the skin incision is only a few millimeters, so bleeding is minimal and negligible. 3, does not affect the stability of the spine, the surgical scar formation is minimal, the patient recovers quickly after surgery, the effect is good. Indications Lumbar intervertebral disc herniation, prolapse and intracanal free, lumbar intervertebral disc central type herniation with cauda equina nerve compression injury, lumbar intervertebral disc herniation combined with lateral saphenous fossa stenosis, limited spinal stenosis, lumbar intervertebral disc herniation combined with posterior longitudinal ligament calcification or fibrocartilage vertebral ossification.