PROSTHETIC JOINT OF CERVICAL INTERVERTEBRAL FOR A CERVICAL SPINE

摘要

The present invention relates to a prosthetic intervertebral joints for cervical intervertebral space. The intervertebral space is limited by the scope of the vertebral endplate of an adjacent (12, 13). The surface of the vertebral bodies include a great many curved outer zone (4) in the front end surface on the side adjacent to the essentially flat central area (2). The outer zone has been more mineralization than the central region, and particularly stable accordingly. Given to the prosthesis surface adjacent the vertebral body surfaces (9, 11) at least one surface of the prosthesis may include an extension up to the side in the outer zone (4). In the prosthesis surface (9, 11) in the end plate in the front end surface of the convex curvature portion (12, 13) is formed in at least the same as the corresponding part of the surface of the curvature. Thereby, the support and the outer zone in the prosthesis are particularly stable outer zone is achieved points actually do not need to be removed material.