Adjustable orthopedic connections

An implant assembly for use in shoulder arthroplasty, comprising:

• a tray member including a top side and a bottom side, the top side defining a tray member cavity, the bottom side including a tray stem;
• a fixation member anchorable to a humerus bone of a patient, the fixation member having a distal end and a proximal end, the fixation member including an opening into a bore that extends into the fixation member from the proximal end toward the distal end;
• and
• a quasi-spherical member disposed adjacent a distal end of the tray stem, the quasi-spherical member positionable in the bore of the fixation member for removably locking the quasi-spherical member to the fixation member, wherein the quasi-spherical member includes a textured outer surface for contacting walls of the bore.

An implant assembly, comprising:

• a fixation member anchorable to a humerus bone of a patient, the fixation member including an opening into a tapered bore;
• a tray member including a first side defining a tray member cavity and a second side including a tray stem;
• and
• a quasi-spherical member disposed on an end of the tray stem, the quasi-spherical member positionable in the bore of the fixation member for removably locking the tray member to the fixation member, wherein the quasi-spherical member includes a textured outer surface for contacting walls of the bore.

An implant assembly for shoulder arthroplasty, comprising:

• a humeral stem configured for engagement with a resected humerus of a patient, the humeral stem including an opening into a tapered bore;
• an articulating liner including a concave articulating surface;
• a tray member including a first side configured to receive the articulating liner and an opposing second side including a tray stem;
• and
• a quasi-spherical member fixed to the tray stem, the quasi-spherical member positionable in the bore of the humeral stem in a plurality of different angular orientations, wherein the quasi-spherical member includes a textured outer surface, and wherein contact between the textured outer surface of the quasi-spherical member and walls of the bore allows fixation of the quasi-spherical member at a desired one of the plurality of different angular orientations.