ACETABULAR PROSTHESIS HAVING AN ORIENTABLE FACE

摘要

A bearing positioner (14) for use with an acetabular bearing (16) which has a convex surface and an oppositely facing bearing surface which defines a cavity. The bearing positioner has an external convex surface having a shape configured to be received in the cavity of an acetabular shell in multiple orientations and to bear and be secured against the concave surface of the shell in any of a number of different orientations. The bearing positioner has an internal concave surface which defines a bearing-receiving cavity configured to receive a portion of the convex surface of the bearing therein and configured to orient the bearing surface of the bearing to bear against a femoral head when the external convex surface of the bearing positioner is secured in a selected orientation.