Equine Heel Bulb Lacerations: Why We Often Recommend a Cast

Heel bulb lacerations may look like minor cuts, but in horses, they are notoriously difficult injuries to heal. The reason is simple: the heel bulbs are in constant motion. Every step stretches the wound; every trot or canter puts it to the test - and even the best bandage struggles to fully restrict movement in this area.

That’s where a cast comes in. While it can look a little dramatic at first, casting is actually one of the most effective ways to help heel bulb lacerations heal safely and efficiently.

How casting helps

For heel bulb lacerations, we commonly apply a foot cast, which encloses the hoof and extends up the pastern to around the level of the fetlock. This fibreglass cast significantly reduces movement at the coffin and pastern joints, as well as side-to-side motion of the heel bulbs.

By limiting movement in this way, a cast:

• Helps prevent the wound from reopening
• Reduces pain at the injury site
• Keeps the area cleaner
• Reduces strain on sutures and healing tissue.

Bandages can achieve some of these goals, but without the added stability of a cast, controlling movement can be very difficult. Immobilisation is the key to successful healing, and it’s the main reason we often recommend casting rather than bandaging alone.

What about cost?

A cast does add a little extra cost at the first visit, which can understandably make owners hesitate. However, in our experience, casting often reduces the overall cost of treatment.

This is because it usually means:

• Fewer repeated bandage changes
• Fewer vet visits
• Less risk of wounds breaking down and needing re-suturing
• Faster overall healing.

Just as importantly, it saves your time - with less bandage management, less cleaning, and less worry while the wound heals.

Casting heel bulb lacerations isn’t about doing “more” - it’s about doing what works best. While it may look and feel like a bigger step initially, a well-fitted cast can make a significant difference to healing and comfort.

When we recommend a cast, it’s because we believe it gives your horse the best chance of healing properly the first time, helping to reduce setbacks, cost, and frustration in the long run.

Dr Chloe Traill BVSc (dist), MBioMedSc