The invention relates to an intervertebral disk prosthesis formed by an
upper part and a lower part. The top face of the upper part and the
bottom face of the lower part are provided with essentially convexly
curved areas. The bottom face of the upper part is embodied as a convexly
or concavely shaped spherical area while the top face of the lower part
is provided with a concavely or convexly shaped spherical area. The upper
part and the lower part rest against each other in an at least partly
jointless manner, movability of the two vertebrae being ensured by moving
the spherical areas relative to each other. Wear effects are kept low by
providing at least one spherical area with a coating. Loss of blood is
expected to be reduced while operating times and recovery times are
expected to be shortened and the risk is expected to decrease if the
inventive prosthesis is inserted retroperitoneally. Also disclosed is a
method for producing a correctly fitting intervertebral disk prosthesis,
resulting in perfect adaptation to the anatomy of the vertebral bodies.