Factors limiting postoperative range of motion after reverse shoulder arthroplasty

Background: Reverse shoulder arthroplasty (rTSA) provides reliable outcomes, but postoperative range of motion (ROM) varies. This study examined factors influencing the ROM after rTSA. Methods: Seventy-three shoulders (70 patients) undergoing primary rTSA between 2014 and 2023 with ≥1-year follow-up were reviewed. Demographic, clinical, perioperative, and radiographic data were analyzed. Forward flexion (FF), external rotation (ER), and internal rotation (IR) were evaluated using multivariable linear regression to identify predictors. Results: = 0.041) were beneficial. No predictors were identified for IR. Discussion: Older age and increased global lateralization limit elevation, whereas taller stature, preoperative abduction, and prior arthroscopic repair predict better motion.