Optimal Timing of Reverse Total Shoulder Arthroplasty for Proximal Humerus Fractures.

Background: Reverse total shoulder arthroplasty (rTSA) has recently emerged as a popular operative management option for complex proximal humeral fractures (PHFx) in the elderly. Although rTSA seemingly provides satisfactory clinical and functional outcomes in patients with complex PHFxs, little is known about the clinical and functional outcomes of patients with delayed rTSA treatment of proximal humerus fractures. The purpose of our study was to compare postoperative clinical outcomes and complications in patients treated with rTSA for acute PHFx versus chronic PHFxs.