The horse, about 7 or 8 years old had been barefoot for most of his life, with apparently appropriately short heels and toes, but still had persistent quarter cracks on both feet. His feet were badly unbalanced and had underrun heels.
Right Front Before
During Before Sole View RF foot
Heel position improved, removing lever forces on hoofwall. Hoof/Pastern Axis improved. The crack is still visible but is no longer splitting.
The sole view shows uneven underrun heels – the lateral heel of the RF is more underrun than the medial one and is further forward underneath the foot (refer to yellow line and arrows) , which is contributing to the quarter crack on that side of the foot. During the following months the heels were brought back to the widest point of the frog where they lined up with each other.
After
Only a faint shadow of the crack is still visible.