Orthopedic humeral tray and bearing designs and related instruments

A prosthesis assembly for a reverse shoulder arthroplasty comprising:

• a bearing having a tab arranged along at least a first part of an outer edge thereof;
• and
• a humeral implant having a wall with a barb and a skirt positioned distal of the barb, wherein the skirt projects outward of the tab away from a centerline axis of the humeral implant, wherein the tab is substantially aligned with or positioned inward of the skirt, and wherein a portion of the barb engages with the tab coupling the bearing with the humeral implant.

A prosthesis assembly for a reverse shoulder arthroplasty comprising:

• a trial component configured to simulate a bearing, wherein the trial component has two coupling mechanisms including two arms each including at least one finger along an outer edge thereof, each of two arms separated by a relief, and
• a humeral implant configured to receive and couple with the trial component.

17-50. (canceled)