An intervertebral disc prosthesis comprises a first prosthesis component,
a second prosthesis component, and an intermediate prosthesis component
positioned between the first prosthesis component and the second
prosthesis component. The first prosthesis component and second
prosthesis component are configured to rotate upon the intermediate
prosthesis component. The first prosthesis component includes a vertebra
facing surface with a central channel formed in the vertebra facing
surface. The central channel is designed and dimensioned to engage an
insertion arm of a disc insertion tool. The first prosthesis component
also includes at least one indentation configured to engage at least one
retention arm of the disc insertion tool. The at least one indentation of
the first prosthesis component may comprises at least one groove formed
in a collar of the first prosthesis component. In one embodiment, the
first and second prosthesis components are plates and the intermediate
prosthesis component is a core.