Equine Joint Disease: Managing Arthritis in Horses

Joint disease is a leading cause of chronic pain and premature retirement in horses. Early diagnosis and multimodal management significantly improve welfare outcomes.

Key Facts

Osteoarthritis is the leading cause of lameness in horses, affecting an estimated 60% of all lame horses
High-motion joints like the fetlock and coffin joint are most commonly affected in performance horses
Low-motion joints including the hock and pastern joints can be fused (ankylosis) as a treatment
Intra-articular corticosteroid injections provide effective pain relief but carry long-term risks
Newer treatments including PRP, IRAP, and stem cell therapy show promise in clinical studies
Early intervention prevents progression — the window for effective management is before severe degeneration
Exercise modification, appropriate shoeing, and weight management are integral management components

Welfare Considerations

Equine joint disease creates a welfare challenge characterised by chronic pain that progressively limits the horse's ability to move comfortably and perform normal behaviour. The stoic nature of horses means significant joint pathology can be present before lameness becomes obvious to observers. Regular veterinary assessment and proactive management are therefore essential. Treatment decisions involve genuine complexity: intra-articular medication provides relief but may mask pain that serves as a natural movement limiter; continued work while managing pain must be calibrated carefully. The welfare question of when retirement is appropriate — balancing the psychological benefits of continued work and social structure with the physical cost of continued use — requires ongoing, individualised assessment.

What You Can Do

Schedule regular veterinary assessments for horses in work, including flexion tests
Seek early evaluation if any change in gait, willingness to work, or behaviour is noticed
Discuss a multimodal treatment plan with your vet that addresses multiple facets of joint health
Use appropriate footing, training surfaces, and workload to minimise joint stress
Consider retirement or reduced work when pain cannot be adequately managed without welfare compromise