4 yo Shetland Pony Mare
The pony had not been trimmed much until the time she foundered, and grazed on lush grass while under the care of the previous owner, resulting in a combination of probable metabolic and mechanical founder. Her X-rays and laminar wedge closeups appear in the posts below.
A tight regimen of frequent trimming as well as limited access to grass (using a muzzle) has been implemented, resulting in improved hoof form and a healthier body weight. The trimming focused on lowering the heels and backing up the toes, realigning the coffin bone parallel to the toe wall, as well as bringing it closer to a ground parallel orientation. The parallel hoof wall/coffin bone is a primary factor in the prevention of founder.
Somewhat difficult to see in the grass, but this is where the corrective trimming started, with high heels and very long toes. The red arrows at the toe show imminent coffin bone protrusion, along with a wide gulf separation between its edge and the wall. The bar, (red arrow), level with the frog, is high.
1 mo. 3 mos. 6 mos.
As the hoof wall grows down, the separation (all the way around the edge of the hoof) diminishes, and the white line becomes healthy and tight, enabling it to suspend the coffin bone in the hoof capsule.
1 mo. 6 mos.
By 6 months most of the hoof wall has grown down with less prominent rings. The remaining separation at the toe (red arrows) corresponds to the separation on the sole at the same time frame and will grow out in another month or so.