Newly formed splint
These pictures below show a new splint that was acquired about 7 weeks ago. This splint would have been caused by direct trauma, the likelihood is she herself with her other front leg. She hasn't been at all lame but has been left with this hard lump on the inside of her cannon bone. The splint bones are attached to the cannon bone via an inter-osseous ligament when this ligament is traumatized it begins to ossify and causes a hard lump. Although it looks horrific and rarely disappears, it also rarely causes lameness unless it's higher and affects the knee joint.
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