Cervical spine artificial disc for cervical spondylosis

  Cervical spondylosis is a common orthopedic disease that plagues human health and affects life and work. In recent years, with social development and changes in work pressure and living habits, the incidence of cervical spondylosis has been on the rise clinically and is gradually showing the characteristics of low age.  The clinical manifestations of cervical spondylosis include not only neck pain and restricted movement, but also symptoms of nerve damage of different degrees, such as unstable walking, trunk constriction, cotton stepping, weakness of limbs and radiating pain of limbs, which greatly affect the daily life of patients. In fact, surgery is an important treatment option for patients for whom conservative treatment is ineffective.  In terms of the surgical approach, the traditional surgical method of discectomy decompression intervertebral fixation and fusion is generally better at relieving the patient’s nerve compression and improving the corresponding clinical symptoms. However, because the reconstructive approach involves fixation and fusion of the active segment of the cervical spine, the motion of the involved segment is sacrificed, and there is a risk of accelerated degeneration of the adjacent segment in the distant postoperative period, eventually leading to involvement of a new cervical segment. As a result, the spine surgery community has sought a more physiologic approach to cervical spine reconstruction by preserving and maintaining segmental mobility.  Inspired by the promising results of prosthetic arthroplasty, basic research and clinical development of artificial disc replacement has evolved internationally in recent years. This novel surgical approach overcomes some of the disadvantages of traditional intervertebral fixation and fusion surgery and is gaining increasing attention from spine surgeons. The early development of cervical artificial disc replacement surgery in China has gradually accumulated rich clinical experience, which has effectively relieved the pain of the majority of cervical spine patients and is expected to receive better long-term results. Of course, cervical artificial disc replacement also has its applicable targets. For example, the patient should preferably be less than 60 years old, have no osteoporosis, no significant bone formation, and have good mobility of the operated cervical segment. The spine surgeon will choose the appropriate surgical plan based on the patient’s specific situation.