A dual mobility prothesis for implantation into the acetabulum

A dual mobility prosthesis system comprising:

• a plurality of monobloc ceramic acetabular cups, each monobloc ceramic acetabular cup having a cup articulation surface;
• a plurality of polyethylene articulation elements, each polyethylene articulation element having an inner articulation surface, and an outer articulation surface, the outer articulation surface being rotatably engageable with the cup articulation surface of the acetabular cup;
• and
• a plurality of ceramic femoral ball heads, each ceramic femoral ball head having a head articulation surface directly engageable against the inner articulation surface of the polyethylene articulation element, the ceramic femoral ball head being attachable to a femoral stem;
• wherein the cup articulation surface of each monobloc ceramic acetabular cup is dimensioned to contact the inner articulation surface of a selected polyethylene articulation element and covers less than a hemisphere to non-captively receive the selected polyethylene articulation element, and wherein a wall thickness of the monobloc ceramic acetabular cup is non-uniform.