Colley R, et al. - In this research, the outcomes of reverse shoulder arthroplasty (RSA) were compared using the anatomic or alternative centerline. Between November 2006 and August 2017, researchers conducted a retrospective case-controlled study of patients who had undergone RSA, performed by a single surgeon, with a minimum of 2 years' follow-up. They compared patient-reported outcome measures, active range of motion, and the ability to perform functional tasks of internal rotation. This study included a sum of 88 patients (66 in the anatomic center-line group and 22 in the alternative group) who participated in the matched analysis, with a mean age of 74.2 years (range, 58-89 years) and mean follow-up period of 53 months (range, 24-130 months). For baseplate fixation, the alternative centerline can be applied in the setting of glenoid bone loss and leads to similar patient outcomes and functional tasks of internal rotation, as well as a low rate of complications, in comparison with the anatomic centerline following RSA.