Patent ID: 8257439

Claim:
An intervertebral disc prosthesis system comprising: a prosthesis comprising at least three pieces including an upper plate, a lower plate, and a core, at least one of the plates and the core being configured for movement of the core at least in translation at least in relation to said at least one of the plates according to an axis substantially parallel to that plate when the prosthesis is assembled, with male and female cooperation means situated in the vicinity of the edges of at least one plate and the core limiting the movements in translation of the core relative to this plate, according to an axis substantially parallel to this plate, and limiting or suppressing the movements in rotation of the core relative to this plate, about an axis substantially perpendicular to this plate; and a plurality of sizes of anatomic adaptation elements each having a surface configured for contact with a surface of a vertebra and a face of which at least a part has a surface configured for contact with at least a part of the upper or lower plate opposite to which the anatomic adaptation element is to be mounted, each of the anatomic adaptation elements being configured to be fixed onto one of the upper or lower plates via fixation means, with a pair of the anatomic adaptation elements being selectable from the plurality of sizes to adapt the upper and lower plates to the sizes of vertebrae between which the prosthesis is to be implanted.