Jeon YS, et al. - Researchers sought to determine the incidence of poor motion recovery after reverse total shoulder arthroplasty (RTSA), as well as the factors that may cause poor outcomes. They found that three-quarters of patients who underwent RTSA using a prosthesis designed to be medialized, exhibited satisfactory improvement of active anterior elevation. Among the various factors investigated, only postoperative lateral humeral offset (LHO) was found to be a significant risk factor for poor postoperative active anterior elevation. Surgeons were recommended to try to avoid increasing postoperative LHO when performing RTSA using an implant designed to be medialized.