Intra-articular injections are common in sport horse medicine. Understanding their welfare implications, risks, and appropriate use protects horses from overuse and masked pain.
Joint injections sit at the intersection of welfare benefit and welfare risk in sport horse medicine. Used appropriately, they alleviate genuine pain and improve quality of life for horses with arthritis or joint injuries. Used inappropriately to enable horses to compete through pain, they mask protective pain signals and may accelerate joint deterioration. The welfare standard requires that injections are based on thorough diagnostic workup, are accompanied by appropriate workload management rather than maximizing performance through the pain-free window, and are documented transparently with competition authorities.