Osteoarthritis (OA) is one of the most common conditions affecting equine athletes. While it cannot be cured, it can be effectively managed to maintain comfort and athletic function. Early detection and a multimodal management approach are key.

Understanding Osteoarthritis

Osteoarthritis is a degenerative condition affecting the joint cartilage, subchondral bone, and surrounding structures. It can result from normal wear and tear, previous injury, or conformational factors that create abnormal joint loading.

Not all osteoarthritis is clinically significant. Horses can have radiographic evidence of joint changes without lameness, just as horses can have significant discomfort with minimal radiographic changes.

Early Detection

Watch for these early signs:

  • Subtle stiffness that improves with warming up
  • Decreased performance or reluctance during specific movements
  • Mild joint effusion (swelling)
  • Changes in attitude or willingness to work

Early intervention slows progression and maintains joint function longer.

Management Strategies

Joint Therapy

  • Corticosteroid injections — powerful anti-inflammatory relief
  • Hyaluronic acid — joint lubrication and mild anti-inflammatory effect
  • Biologic therapies — IRAP, PRP, ProStride for targeted anti-inflammatory action
  • Polyacrylamide gel — newer option for long-term joint support

Systemic Therapies

  • NSAIDs — for acute flares and short-term management
  • Bisphosphonates — for bone remodeling conditions
  • Oral joint supplements — glucosamine, chondroitin, hyaluronic acid (variable evidence)

Exercise Management

Appropriate exercise is beneficial for arthritic joints. Maintaining fitness and muscle support while avoiding excessive concussive work helps manage the condition. Work surface, intensity, and frequency should all be considered.

Farriery

Proper hoof balance reduces abnormal forces on joints. Work with your veterinarian and farrier as a team to optimize the horse’s biomechanics.

Long-Term Outlook

Many horses with osteoarthritis compete successfully for years with proper management. The key is a proactive, multimodal approach that’s adjusted based on the horse’s response and evolving needs. Regular veterinary monitoring ensures the management plan stays effective over time.