One of the most common conditions effecting soundness and performance lifespan of horses is osteoarthritis (OA) with some reports suggesting over 60% of lameness issues in horses are attributable to OA. OA is a slow, progressive disease of the joint that include damage to not just the bone but also the cartilage and soft tissue structures including joint capsule and supporting ligaments. The good news is that advances in veterinary diagnosis and management of OA allow us to identify OA earlier and support our patients and clients with more advanced treatments before the disease has limiting effects on performance.