Intervertebral prosthesis for the cervical spine

摘要

A cervical vertebral prothesis includes a central part for bridging a central vertebral body and two outer prothesis parts which are engaged above and below the central vertebral body and are configured to be connected to vertebral bodies located above and below the central veterbral body. In order to secure both stability and mobility of the articulation of the assembled prosthesis, the central vertebral body is fixed to one of the outer prosthesis part and connected via a hinge to the other of the outer prothesis parts.