Intervertebral Foraminoscopy was firstly created by Prof. Anthony Yeung in 1999 (Yang’s technique), and was developed on the basis of Yang’s technique by Prof. of the German Society of Spine Surgery in 2002, and now the innovative Thessys technique is widely recognized by scholars in the field of spine. The Thessys technique is a minimally invasive spinal surgery system that is composed of a specially designed intervertebral lens and corresponding supporting minimally invasive spinal technology instruments, fiber-optic image processing system, and low-temperature plasma dual-frequency radiofrequency machine. Positioned under the imaging equipment, it enters the intervertebral foramen from the side or side and back of the patient’s body, reaches the anterior interspace of the dural sac, and carries out the surgery on the herniated disc protruding into the vertebral canal, and does the surgery outside of the annulus fibrosus of the intervertebral disc; the protruded nucleus pulposus, nerve roots, dural sac, and the hyperplastic bone tissues within the vertebral canal can be clearly seen under the direct vision of the endoscope; and then the protruded tissues are accurately removed using various kinds of grasping forceps, the hyperplastic bone and thickened yellowish bone are taken out. Then various types of grasping forceps are used to precisely remove the protruding tissues, take out the thickened bone and thickened ligamentum flavum, and the bipolar radiofrequency electrode repairs the broken fibrous ring to prevent it from protruding again, thus completely relieving the pressure on the nerve root. This therapy is suitable for medium and severe and various kinds of difficult disc herniation; this technology is not only for treating disc herniation, but also used in a large number of various kinds of bony stenosis and senile degeneration treatment. Features: Retains the advantages of nearly three decades of intervention —- Minimally invasive Successful introduction of optical fiber imaging —— Visualization Combined cryogenic plasma radiofrequency ablation —— Hemostasis Intervertebral foraminal approach to the anterior interspace of the dural sac —- Targeting Does not change the osseous structure of the spinal column ——– Stability Advantages: Published international literature has reported that at 1- and 2-year postoperative follow-ups, the obtained success rates of more than 95% and early recurrence rates of less than 5%. Success rates also exceed 84% in patients with open surgical recurrence. Indications and contraindications: Indications are expanding year by year The microscopic treatment of spinal stenosis has achieved satisfactory efficacy Cardiac stent patients taking Polivir and aspirin need to be adjusted according to the coagulation function Those with abnormalities in blood glucose, blood pressure, cardiorespiratory function need to be adjusted appropriately Mental and psychological anomalies, immune deficiencies, lumbar spondylolisthesis of more than the second degree and severe infections are currently contraindicated Pre-operative CT film of the intervertebral porosonectomy Immediately after the operation, CT films of the intervertebral porosonectomy are not available.