In real life, each person has a specific work, and each of the nature of the work, and labor intensity and the duration of a posture is not the same. For cervical disease, the incidence of a specific crowd. From the age of onset, in elderly patients with the highest incidence rates, according to statistics, the incidence of cervical degeneration in the middle-aged at 50%, to 70 years of age, up 100 percent. First, the intervertebral disc degeneration, the nucleus pulposus moisture reduction, flexibility, and annulus fibrosus fibrosis rupture, the intervertebral disc degeneration, it is likely to cause injury to the occurrence of cervical spondylosis. This was followed by bone, occurred in the muscles and ligaments, such as attachment of the joint capsule, in the cervical spine in a more facet, the Department of uncovertebral joint cartilage and vertebral margin. In addition there ligament degeneration, such as yellow ligament hypertrophy, before and after the OPLL, calcification of the ligament strain. Occupational factors to consider, in a sitting position, in particular the bow Fuan, the incidence of cervical disease are particularly high. Such personnel are often engaged in embroidery, sewing, computer operation, typing, editing, sculpture, writing, graphics, instrument repair, laboratory work. Fuan bow to long-term work, because that could easily lead of the neck muscle, ligament strain on the internal and external balance of spinal disorders, disc Daolibu are, thus accelerating incidence. Similarly, in the long-term direction of the head and neck in a rotating occupation, such as shooting athletes, teachers, traffic police, textile workers, but also easy to cause cervical strain in cervical spondylosis. With the high-tech, modern large-scale production development, more and more staff Fuan, the incidence of cervical disease was also hyperplasia trends, and to develop younger. Clinically, the age of 20 years old, even teenage cervical Patients will also be able to see. Therefore, to improve the working environment and job position and do a good job of cervical disease prevention, to reduce morbidity, delayed age of onset is very important issue.
