Navicular

The navicular bone of the horse, also known as the distal sesamoid bone, lies on the palmar aspect of the coffin joint between the second phalanx and third phalanx, known as the coffin or pedal bone. It is an important structure in relation to lameness and is involved with a significant disease process called Navicular Disease. Recently much of the original literature concerning navicular disease has been called into question, particularly the significance of some radiographic changes