29/05/2026
Healthy joint vs osteoarthritis
These images show how a healthy joint compares to one affected by osteoarthritis.
A healthy joint allows smooth, comfortable movement — with cartilage and joint fluid reducing friction and absorbing shock.
A healthy joint includes:
• Bone – supports weight and forms the joint
• Cartilage – a smooth surface that allows bones to glide
• Synovium – the joint lining that produces fluid
• Synovial fluid – lubricates and cushions the joint
• Joint capsule – surrounds and protects the joint
As osteoarthritis develops, cartilage wears down and inflammation occurs. Other changes may include
• Thickened capsule – due to inflammation
• Inflamed synovium – the joint lining becomes irritated
• Reduced fluid quality – less effective lubrication and cushioning
• Bony changes (osteophytes) – small bone growths develop
• Narrowed joint space – reduced between the bones as cartilage is lost
Because these changes develop over time, early signs can be subtle. Monitoring how your horse moves can help detect issues earlier and support long-term health.
We can help assess your horse’s movement and track changes over time — feel free to get in touch! - 01749 830 666