Bitzer A, et al. - In patients who underwent reverse total shoulder arthroplasty (RTSA), researchers ascertained the incidence of aseptic glenoid baseplate loosening (AGBL). They also identified the risk factors for AGBL following RTSA. After primary RTSA, the rate of baseplate failure was low (1.2%) but was significantly higher following revision RTSA (10%). The use of all 3.5-mm nonlocking screws for peripheral baseplate fixation and the use of a bone graft to address deficiencies in bony support beneath the baseplate were the major risk factors for baseplate failure.