These are pictures taken of a hoof that I began working on about 5 months ago. The horse had previously been in shoes, then in glue-on’s and this access crack was going nowhere good.
Many times a crack like this grows out easily, with no further issues. In this case, the horse has feet that look decent from the outside but the solar view reveal thin soles, contracted heels and a nonexistent frog. So it’s not a healthy foot and it’s not going to easily grow out a crack like this.
I was asked to begin casting it when the glue on shoes would not stay on. I trimmed it, did a mild resection and had the owner do a deep cleaning treatment. Further prep involved mildly sanding the outside to remove any debris, and then gluing a cast on.
Casts stop hoof expansion. Without getting into too much detail, sometimes we want this to happen. This hoof was cast three times to get to the point you see in the first (after) photo. The last time I was able to get a layer of Equipack down to increase circulation and the foot grew about an inch between casts.
One more trim and the crack will be completely grown out. We’ll keep working on his other issues but this was a fun example of when casting is the appropriate tool.