
04/19/2025
This is an amazing illustration and explanation of what can happen inside the hoof due to laminitis. (It makes my stomach hurt to think about the pain associated with it, and will hopefully convince some to get more serious about putting on those grazing muzzles.)
A beautiful and rare macro shot of a Sagittal section (through the middle) of a horses foot with rapid onset laminitis.
This is at the coronary groove/ coronary band area. The wall grows from cells in the coronary groove. It’s usually a distance “U” shape but in this case it’s dragged out to more a straight line.
Why?
Because the laminar bond suspending the coffin bone has been destroyed and the weight of the horse has drives the bone down due to gravitational force.
The bond is strong to support a galloping horse when healthy. But when it looses its connection it can fail catastrophically.
Note the wall growth at the coronary groove- it’s kinked.
Why?
Because it’s been pulled down with the plunging coffin bone. The bone takes all the soft tissue associated with it as it drops.
The wall has almost folded itself up on the inner wall side can you see it? Again it’s being dragged down with the bone due to gravity.
Look at the periople. It’s usually a nice sliver of stretchy soft material sealing hood wall to skin. It’s usually a plump line. Notice its shape like a triangle
Why….. you know the drill.
Gravity always wins.
Body weight - is subjected to gravity.
Heavier horses will have more risk of distal descent than lighter horses.
Minis are quite immune to distal descent- they may get a few mm drop but uncommon to see the coffin bones literally comming through the sole.
How to come back from this?
It depends on how many laminar attachments are left. That’s it
The more unscathed attachments the better the prognosis.
No one knows the outcome.
There are too many variables
It’s only you and your horse that needs to answer those questions.
Peace ❤️