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The horse stands in a "founder stance" in attempt to decrease the load on the affected feet. If it has laminitis in the front hooves, it will bring its hind legs underneath its body and put its fore legs out in front. [4] In cases of sinking, the horse stands with all four feet close together, like a circus elephant.
Hoof or horseshoe wear can indicate breakover and if the horse is dragging its toes. Change in shape of the hoof wall is also common in horses with laminitis. "Founder rings," or thickened concentric rings in the hoof wall, indicate a past episode of laminitis. Concavity of the dorsal (front) surface of the hoof can indicate chronic laminitis.
A New Exposition of the Horse's Hoof [Signed: B C, i.e. Bracy Clark], 1820; An Essay on the Cause and Cure of Running Frush in Horses' Feet (On Ossified Cartilages of the Feet, vulgo Ring-Bones), 1821; An Essay on the Canker and Corns in Horses' Feet, 1822. A Short History of the Horse, and of the Progress of Horse-Knowledge, 1824.
However, there is a growing movement to eliminate shoes on working horses. Advocates of barefooting point out many benefits to keeping horses barefoot and present studies showing that improper shoeing can cause or exacerbate certain hoof ailments in the horse. A hoof boot may help protect the horse's hooves during the transition period.
The horse has a sesamoid bone called the navicular bone, located within the hoof, that lies on the palmar aspect of the coffin joint between the second phalanx and third phalanx (coffin bone). The navicular bone in the horse is supported by the distal sesamoidean impar ligament and two collateral sesamoidean ligaments.
The insensitive laminae coming in from the hoof wall connects to the sensitive laminae layer, containing the blood supply and nerves, which is attached to the coffin bone. [1] The lamina is a critical structure for hoof health, [ 1 ] therefore any injury to the hoof or its support system can in turn affect the coffin bone.
The common adage “no foot, no horse” rings true in that the shape and soundness of a horse’s hoof dictates the tasks it can perform. [3] Equine athletes asked to perform at intense levels of competition experience a great deal of wear on the internal and external structures of the hoof. [3]
While the design is intended to exaggerate the horse's action, the shape of the stacks and added weight to the horse's foot cause the foot to strike with more force and at an abnormal angle. [9] Soring occurs when items are concealed between the pad and hoof such that painful pressure occurs to the sole of the hoof making the horse lift its ...