The goal of the Tessys minimally invasive spine technique is to relieve pressure on nerve roots and eliminate pain caused by nerve compression by completely removing the herniated or prolapsed nucleus pulposus and hyperplastic bone in the safe triangle of the intervertebral foramen, beyond the disc’s fibrous annulus. The procedure is performed through a minimally invasive spine surgery system consisting of a specially designed intervertebral foramoscope with corresponding minimally invasive spine surgical instruments, imaging and image processing systems, and an ellman dual-frequency radiofrequency machine. The procedure is performed under local anesthesia with a tiny skin incision while the patient is awake, with no interference in the spinal canal. While completely removing the herniated or prolapsed nucleus pulposus, it also removes osteophytes, treats spinal stenosis, and can repair the broken annulus fibrosus using radiofrequency technology. Because minimally invasive spine surgery is performed outside of the annulus fibrosus, the integrity of the annulus fibrosus is maintained to the greatest extent and the stability of the spine is preserved, resulting in the least trauma to the patient and the best results of any procedure of its kind. The superiority of the minimally invasive foraminoscopic spine technique THESSYS foraminoscopic spine technique is a well-established and proven set of techniques performed by the renowned German spine surgeon Thomas Hoogland (Tom Hoogland). Hoogland and others before it was introduced to the world after performing over a thousand successful procedures. It has some major advantages: the patient needs only local anesthesia, not general anesthesia. The surgery is performed while the patient is fully awake. The patient’s reaction can be detected at any time during the surgery. The surgical site is reached through a very small percutaneous incision, minimizing the risk of infection during and after surgery. Unlike microsurgical techniques, the foraminal approach does not require partial removal of the intervertebral ligaments (ligamentum flavum), conus or intervertebral joints (conus laminectomy) in order to locate and remove the herniated or prolapsed nucleus pulposus. It also does not require severance of the trunk muscles, increasing postoperative stability and reducing wound healing pain. Less bone tissue is injured, reducing blood leakage and scar formation in the nerve root area. Quick recovery after surgery allows patients to return to work and ensure a high quality of life as soon as possible. The unique design of the cannula and surgical instruments allows for the discovery and protection of the nerve roots, protection of the epidural and perineural venous system, prevention of venous stasis and chronic neuroedema. In addition, it can reduce perineural and epidural scar formation. It does not damage the good dural and nerve ligament structures and reduces the occurrence of nerve root tethering. The use of a working trocar can reduce paravertebral muscle injury and loss of innervation. In contrast, stripping and pulling of the paravertebral muscles during open surgery often damages the paravertebral muscles and denervates the muscles. In addition, postoperative segmental instability and slippage can be prevented. In accommodative disc herniation, intra-vertebral disc surgery decompression surgery protects the integrity of the posterior annulus fibrosus and posterior longitudinal ligament, thereby reducing the chance of recurrence of postoperative disc herniation. Published international literature has reported success rates of more than 90% at 1 and 2 years postoperative follow-up, with early recurrence rates of less than 5%. In patients with recurrence, the success rate exceeds 84%. Minimally invasive intervertebral foraminoscopic spine technique represents a new concept of minimally invasive surgery. It can perform herniated discs, foraminoplasty and annulus fibrosus repair in all segments from the cervical spine to lumbar 5 and sacral 1. The satisfactory outcome of the surgery can reach 75-90%. Because of its many advantages, foraminotomy is now recognized as the dominant procedure in the field of international spine surgery, along with the well-developed arthroscopy.