Black Jack has continued his eventing career and has taught a multitude of children how to ride. We are very careful with his shoeing, nutrition and work schedule. Radiographic changes have not progressed from 6 years ago.
The (NB) is located behind the coffin bone and under the small pastern bone. The deep digital tendon flexor (DDF) attaches to the back of the coffin bone after running on top of the NB. Cartilage lies between the coffin bone, NB and DDF.
Things that are thought to cause Navicular Syndrome...
The cartilage degenerates probably caused by too much compression between the coffin bone and the NB.
The ligaments that support the navicular bone are constantly put under too much tension , this can begin the process of degeneration.
The DDF tendon is placed under excessive strain for long periods of time, perhaps due to poor shoeing, this can begin the process of bone changes and tendon inflammation.
Some horse-diseases are congenital.
Things that are thought to contribute to Navicular Syndrome...
Defects in the conformation
of the foot of the horse can cause more compression and stress to the navicular and coffin bone as well as the tendons and ligaments. Some of these conformational defects are inherited but even more can be caused by poor shoeing.
The type of work that the horse does can also place excessive stress on the DDF. An example of this type of work would be jumpers, and cutting horses. Work that causes excessive concussion to the hoof such as working on hard or irregular ground can also be a contributing factor
Being confined for long periods of time without the ability to move around also may apply constant pressure to the NB.
Early detection of horse-diseases is the best way to reverse the detrimental affects on the horse.
Slight heel pain displayed by the horse stepping more toe to heel.
Sensitivity to hoof testers
Horse Quote for a Hopeful Day
I bless the hoss from hoof to head
From head to hoof, and tale to mane!
I bless the hoss, as I have said,
From head to hoof, and back again!
~James Whitcomb Riley
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