While shoulder replacement surgery is highly effective at eliminating arthritic joint pain, potential downsides include the risk of post-operative infection, blood clots (deep vein thrombosis), nerve irritation, component loosening or wear over time, and persistent joint stiffness. Additionally, patients face a strict recovery timeline requiring weeks of wearing an immobilizing sling, months of disciplined physical therapy, and permanent lifestyle modifications that prohibit heavy overhead lifting and high-impact contact sports.