Patent ID: 8419798

Claim:
A shoulder prosthesis comprising: a stem configured to be implanted within a bone, the stem defining a first coupler bore; a joint component having a bearing surface and defining a second coupler bore; and a mounting element having (i) a proximal portion received within the second coupler bore of the joint component in a friction fit manner, and (ii) a spherical articulating portion received within the first coupler bore of the stem, wherein: the stem includes a proximal surface that defines a coupler opening through which the mounting element extends, and the stem, when viewed in a cross-section, further includes an interior wall portion located within the first coupler bore that extends inwardly toward a longitudinal axis of the first coupler bore from the proximal surface in a straight line; the spherical articulating portion of the mounting element touches the interior wall portion at a point along the straight line; the mounting element defines a passageway extending therethough; and a proximal part of a fastener is located within the passageway, and a distal part of the fastener contacts the stem.