Cervical intervertebral prosthesis with at least one cover plate (3, 4) to
be connected to one of the two adjacent vertebral bodies (1, 2), and with
a securing plate (12) which secures this cover plate (3, 4) and is to be
fastened to the ventral surface of the vertebral body (1, 2). According
to the invention, the securing plate (12) is a separate part unconnected
to the cover plate (3, 4). It can be biodegradable.