Artificial disc replacement for cervical spondylosis is suitable for less than 60 years old, anterior disc compression-oriented, neurogenic cervical spondylosis, spinal cord cervical spondylosis and some sympathetic cervical spondylosis. The main advantages are: 1. Good activity: the cervical spine motor function is not affected after surgery, and the risk of causing degenerative protrusion of adjacent discs in the long term is relatively small; 2. Fast recovery: generally, the neck brace can be removed the day after surgery and walking away from bed. Generally 1-2 weeks after surgery, you can resume light work. There is a case of volleyball players on the court 3 weeks after surgery to participate in the game; 3, less invasive: minimally invasive, less surgical trauma, decompression of the intervertebral space, only the removal of the diseased part, the preservation of normal vertebral bone tissue is basically intact; 4, better than the anterior cervical fusion plate fixation: France LDR2 artificial disc two-segment replacement (with reliable evidence-based medical evidence, through the U.S. FDA certification), both functional and rehabilitation are significantly better than Two-segment intervertebral fusion. This treatment technique overturns the concept of cervical fusion plate fixation that has been required for cervical spine surgery since the last century. Limitations of cervical disc replacement: 1. The number of replacements cannot be too many, preferably not more than 3 segments; among them; 2. Not suitable for cervical spondylosis with vertebral instability and osteoporosis, the foundation is not firm to maintain the position and stability for a long time; 3. Not suitable for cervical spondylosis with spinal stenosis, such patients are suitable for posterior cervical decompression surgery; 4. The age requirement is below 60 years old and cannot be accompanied by significant degeneration of small joints; 5. The world The longest observation time is about 15 years, although the laboratory fatigue test can maintain the function for decades (lifetime). 6. The operation is complex and technically demanding. Another point that needs to be highlighted is that cervical spine surgery is divided into two major parts – decompression and reconstruction. Improvement is the key to eliminate the symptoms of pain, numbness and limb weakness, and is the decompression of the excision of the compressed neuropathy; while the functional status after cervical spine surgery is determined by the reconstruction method, relatively speaking, artificial disc replacement is the most scientific and reasonable reconstruction method at present, which has the potential to preserve the normal function of the cervical spine. The first artificial cervical disc was first used by Fernström in 1964 and was designed to preserve the mobility of the operated segment of the cervical spine, reduce the degeneration of adjacent segments and improve long-term clinical outcome.The Bryan artificial disc, a single component made of metal-polymer, consists of two microporous coated endplate contact shells and a polycarbonate/polyurethane nucleus pulposus, with the prosthesis The prosthesis is encapsulated in a capsule made of polymer. The advantage is that the immediate rotation axis of the prosthesis is variable and not limited by the geometry of the endplate contact surface; the prosthesis is attached to the surrounding soft tissue and can absorb shock. It is one of the three FDA approved disc prostheses in the United States.