SHOULDER ARTHROPLASTY (JOINT REPLACEMENT) IS A VIABLE INTERVENTION FOR INDIVIDUALS WITH ARTHRITIC PATHOLOGIES THAT HAVE BEEN REFRACTORY TO CONSERVATIVE INTERVENTIONS. ALTHOUGH TRADITIONAL JOINT REPLACEMENT PROCEDURES HAVE BEEN FOUND EFFICACIOUS, THEY ARE NOT APPROPRIATE FOR INDIVIDUALS WITH AN IRREPARABLE ROTATOR CUFF TEAR. REVERSE TOTAL SHOULDER ARTHROPLASTY (rTSA) IS A COMPLEX SURGICAL PROCEDURE SPECIFICALLY DESIGNED FOR INDIVIDUALS WITH ADVANCED ARTHRITIS AND AN IRREPARABLE ROTATOR CUFF. OWING TO THE COMPLEXITY OF THIS PROCEDURE, MANY INDIVIDUALS WILL HAVE IMPAIRMENTS EXTENDING WELL-BEYOND FORMAL REHABILITATION. THUS, THE PURPOSE OF THIS ARTICLE IS TO PROVIDE THE NECESSARY INFORMATION TO IMPLEMENT A SAFE AND EFFECTIVE rTSA POSTREHABILITATION PROGRAM. FOR A VIDEO ABSTRACT OF THIS ARTICLE, SEE SUPPLEMENTAL DIGITAL CONTENT 1 (SEE VIDEO, HTTP://LINKS.LWW.COM/SCJ/A143).