Abstract: Shoulder replacement: Enhanced fixation glenoid implants are disclosed. The glenoid implant designs presented herein have fixation projections that provide implants with better biomechanical properties than existing designs. Peripheral pegs have design features that provide better pull-out strength and stability. The central post can have stacked barbed discs, flutes, and surface features that provide better stability of the implant and can be self-centering. Better stability will lead to more reliable bony ingrowth and long-term survival of implants. Implants, pegs, and posts may be sized to patients and may not require intraoperative assembly. Implantation of devices requires minimal bone sacrifice and may be performed in a cemented or cementless, press-fit fashion.