Patel M, Martin JR, Campbell DH, et al. - Researchers assumed that an inferior tilt of -10˚ would lead to increased medialization and elevated scapular neck impingement in comparison with 0˚ of tilt. Researchers included a total of 20 individuals without glenoid bone loss undergoing RSA at a single institution who had undergone computed tomography (CT) scans of the entire scapula and proximal humerus for preoperative planning. It was noted that relative to 0˚ of tilt of the baseplate, an inferior tilt of -10˚was correlated with increased scapular neck impingement in external rotation at the side and adduction, likely a result of the elevated medialization necessary to seat an inferiorly tilted implant, which shortens the scapular neck and brings the humerus closer to the scapula. The risk of notching and impingement-related instability was increased by the scapular neck impingement.