jeudi 12 mars 2015

Information On Navicular Syndrome In Horses

By Lena Stephenson


Caudal heel pain syndrome is a degenerative disease affecting the structure of hoof in horses. Navicular syndrome is mostly linked to the navicular bone, or distal sesamoid bone. Distal sesamoid bones are small and are set deep within the hooves. They are precisely at the back junctions of the coffin and short pasterns bones.

Caudal heel pain syndrome is associated with pain as a result of alterations in the position of tendons, ligaments, bursa, and bones. Partial limp, which gets worse with time, is seen in affected animals. Affected horses feel pain in the fore feet forcing them want to reduce weight placed on them by any means possible. The most painful hoof is placed ahead of the other when resting.

The other indicators of the disorder include a horse having difficulties in turning sharply. It also becomes hard for the affected animal to move on hard or rocky ground as well as finding it hard to go downhill. The disorder makes a horse very uncooperative during shoeing or trimming as they involve picking up one front foot leaving the other to support the animal. Once, the weight is concentrated on one foot the horse feels unbearable pain thus the stubbornness.

There is no guarantee that particular breeds of horses do not develop the problem. Although, the problem is common in stock type horses such as appaloosas, paints, and quarter horses. Warmblood horses and thoroughbreds are also likely to suffer from this condition. On the other hand, Arabian horse is rarely affected by the disease. The weight of the animal could lead to this syndrome because overweight horses put excess strain on their musculoskeletal system.

The pain reduces with rest but worsens with more work. Once the disorder is determined by a qualified vet the affected horses should be given proper treatment. Treatment may be include altering the schedule or have the horse operated on. Shoeing with shoes having a square shape or trimming the toes is a possible remedy. When this is doing the strain put on the hoof reduces greatly.

Medical therapy includes administering anti-inflammatory medicines like phenylbutazone. Vasodilator drugs like isoxsuprine, pentoxifyline, and metrenperone are applied to improve flow of blood to the affected parts. Administering certain drugs is not allowed if the horse is taking part in some competitions. For this cause, it is better to consult with a qualified veterinary prior to administering any medication.

Surgical method to navicular condition entails neurectomy. Neurectomy is simply transection of digital nerve found in the lower pastern part and inhibiting its growth the longest time possible. The surgery has two methods by which it can be achieved. The first method includes cutting the nerve using a blade or operating using sophisticated surgery laser. Each technique is applied when considered necessary and also to reduce chances of complications.

Neurectomy is not treatment rather it is a procedure that eliminates the pain when everything else has failed. It is not a permanent solution as it may have to be repeated after sometime. Compilations may arise from this procedure although this is not common. Formation of neuromas is the most common complication. Neuromas are painful tumors, which grow at the tip of cut nerve.




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