Abstract
In recent years, with the development of software and hardware technology and the reduction of costs, motion capture systems have become popular. Cervical spondylosis is a common and frequently-occurring disease in clinical and daily life. The incidence of this disease is increasing year by year. The computer motion capture technology can better preserve the details of the cervical spine motion and record the motion trajectory for the patient when treating cervical spondylosis. This article aims at the clinical research of cervical spine motion trajectory based on computer motion capture technology. After understanding the basic anatomical structure of the cervical spine, mechanics, kinematics and other related knowledge, this article makes a reasonable simplification of the structure of the cervical spine, uses computer motion capture technology to observe and study the normal human cervical spine motion trajectory, and compares the different segments of the cervical spine. Experimental data shows that the range of C2-3 left and right motion is 2.2±2.0mm, and the front and back motion range is 0.2±1.7mm. When the C2-3 cervical spine rotates axially, the C2/3 range of motion is smaller than other cervical spine segments, indicating that this segment’s movement variation is large, and the movement direction is likely to be opposite to the overall twisting direction of the cervical spine.
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