Since the advent of Neer's total shoulder arthroplasty in 1974, glenoid implant design has evolved to optimize patient function and increase implant longevity. Glenoid loosening continues to be a major cause of total shoulder arthroplasty failure due to both patient and implant factors. The more recent development of posterior augmented glenoids, peg fixation with ingrowth potential, inlay implants, zoned conformity implants, and convertible glenoids have all shown promising results in improving glenoid fixation and survival in different clinical circumstances. The increased utilization of 3D CT scans, preoperative planning, and patient-specific instrumentation has paralleled innovation in glenoid implants with the aim of improving the accuracy of glenoid implant placement to further optimize patient function and implant longevity. Specific indications for the variety of glenoid implants available today are still being studied. The shoulder arthroplasty surgeon should consider patient and implant factors and patient goals when determining the appropriate implant for each individual.
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