Asymmetrical feet is what we desire with our horses' feet, and even if its slightly assymmetrical there is nothing out of the ordinary. However, if one hoof differs tremendously from the other, well it might need some extra care. A club foot might be the cause --- "an abnormally upright hoof with long,
contracted heels and a prominent or bulging coronary band." This problem is a "flexural deformity" of the coffin joint from the shortening of the deep digital flexor and tendon (aka
musculotendinous unit).
If your horse has a club foot, they can lead comfortable lives, and in some cases even athletic lives with the proper management and care.
Club Foot?

A club foot can either be congenital (at birth) or acquired (developed overtime).
When there is any excessive pulling on the deep digital flexor muscle and tendon (DDFT runs down the back of the limb to insert on the back of the coffin bone) it causes a complementary pull of the coffin joint. The degree of a club foot varies, from a mild outward buckling of the hoof to it being so severe that the horse (or foal) cannot touch his heel to the ground. With foals, they may unable to fully extend their lower limb joints. A foal can quire a club foot around 2 - 8 months old, usually by 12 weeks.

There are various causes which include genetics - if the mom has it, her baby might have it; diet- excess energy and/or mineral imbalances; excessive exercise - too much/hard; and/or a withdrawal response to pain - inflammation of a growth plate or trauma. A foal will show excess to toe wear and as it progresses, the coronary band can appear to bulge, and leads to the hoof wall becomming dished. The foal will soon have a hard time touching his heel to the ground. The foal's club foot was get attention and fixed, or the horse will retain a club foot as they mature.

There is a Type 1 and Type 2 for a club foot. Type 1 is when the angle of the hoof/ground is 90 degrees or less and Type 2 is when the angle of the hoof/ground is greater than 90 degrees. However, veterinarians can diagnose a club foot with a grading system. Grade 1 - mildy upright hoof; Grade 3 - 5 degrees steeper than the opposite hoof; Grade 4 - most severe, the hoof is severely dished, coronary band is as high at the heel as it is at the toe, hoof/ground angle is 80 degrees or greater. At Grade 4, there are changes to the coffin bone.
Club Foot and Soundness

Horses' with a club foot alters the hoof's biomechanics, results in secondary lamenesses. A club foot can cause hoof capsule distortion, increased impact stress throughout the hoof and less energy absorbed and bruising from increased heel growth and thin sole at the toe.
If you have an older horse that has a club foot, they probably suffer to issues such as thin soles, bruising, hoof cracks, white line separation, laminar inflammation and an abnormal coffin joint loading and strain on the navicular bone's supporting ligaments. With the strain and stress on the on the deep digital flexor tendon attaches to the bottom of the tiny bone, it has the potential to elicit early onset changes to the navicular bone itself.
Management and Care
Radiographs are very essential for you and your veterinarian to determine the degree and other diseases in the foot for your mature horses. Helping a horse with club feet means as much as possible trimming their feet at 4-week interval. If the hoof is allowed to grow out, then therapeutic farriery is pointless. Instead of making a dramatic change for a club foot less is more - enhance breakover and possibly add a short wedge shoe/pad to help relieve tension.Talk with your veterinarian and might recommend corticosteroid injections to help relieve pain
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| Clubbed left front foot of this horse |
Just because your horse might have a club foot, does not mean that the horse is done for. Many mature horses can perform well with the proper care and treatment. Some may have poor performance, but might not be outright lame. Buyer beware when purchasing a horse and consider a club foot as a risk factor for future lameness and be sure to be prepared to take the responsibility for proper management of a horse with a club foot.
No matter the veterinarian or farrier's effort and knowledge, some cases of club feet can still to challenging to manage and in these cases an IFCL desmotomy. Recovery for these cases start with surgery and continue with farrier and veterinarian treatment.
Diligent farrier services is important for horses with a club foot to be as comfortable as possible.
"There is usually a reason for a horse to have mismatched
feet, whether it be due to conformation, lameness, foot disease, or poor
foot care." - Dr Randy Eggleston
To learn more about a club foot in horses go to:
http://www.thehorse.com/articles/32785/managing-the-club-foot