Laminitis? - The Horse Forum
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post #1 of 7 Old 07-08-2016, 05:31 PM Thread Starter
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Can someone fill me in?

Can a horse who has a tight laminar connection (very little if any flaring or white line disease) have laminitis?

I know laminitis is an inflammation of the laminae that connect the hoof wall to the coffin bone. I know usually it's linked with coffin bone rotation, white line separation, and founder rings (grass laminitis).

But can a horse have laminitis even if his feet aren't showing it?
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post #2 of 7 Old 07-08-2016, 06:25 PM
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The visible changes to the hoof occur over time as it grows, so technically if a horse had perfect, healthy hooves and began developing laminitis, the horse would have pain before the outward and visible changes to the hoof occurred. Often we don't notice the laminitis until those changes are already visible because the soreness can be subtle. But horses that have laminitis from a disease or exposure to a toxin progress more rapidly and severely.

White line disease is a secondary infection where organisms get inside the white line so it is a risk factor that happens after damage to the laminae occurs to allow the organisms access.

The coffin bone may or may not sink with laminitis, and may or may not rotate depending on the severity of how the horse is affected.

Founder rings do not have to be related to grass, but can be from any issue that causes the laminae to lose connection and reconnect more tightly again. For instance, if you fed an IR horse a big grain meal once a week, you could see that in the hooves even if the horse was not getting any grass.
Here's a pretty neat video of a time lapse hoof xray as the hoof "sinks."
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post #3 of 7 Old 07-08-2016, 07:29 PM
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You would never guessed my dead lame gelding had laminitis by looking at his feet, always GREAT hooves.

These days you honestly still can't really tell (I'm sure an experienced farrier could) though they have changed from before a little they don't look like what you'd expect and I'm sure many people would go "wow look at those nice feet!".

Laminitis is simply inflammation. There are many factors and those things you've listed are a RESULT of laminitis, not a cause nor a part of.

For my boy it was brought on by at the time undiagnosed Cushings and the catalysts were spring grass and an (unauthprized) hard ride. Due to the Cushings it will always be a worry for us, though he has been doing very well lately. I do suspect it has continued and will in a subclinical sense, but we manage it the best we can and he is happy.
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post #4 of 7 Old 07-09-2016, 01:43 PM
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@Yogiwick how was the horse finally diagnosed with low grade laminitus?

I'm just kind of wondering if any of this is applicable to the gelding I ride. he seems to me to be a possible IR type horse (has a fair amount of hard fat on his buttock and crest, and is an Andy) , and he's kind of tenderfooted at the trot, but walks out really well.

oh, don't want to hijack thread, but if any info is applicable to OP , it might be useful for me too.
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post #5 of 7 Old 07-09-2016, 02:10 PM
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@tinyliny My horse? It was not low grade, he was pretty lame at onset (2-3/5?) though not drastic (no "founder stance" or anything, willing to move, but he was also on soft sand, painful to watch on gravel :/). Both vet and farrier confirmed laminitis and vet determined it was due to Cushings (which was simply confirmation of my thoughts). Xrays were clear. He came up lame my mother called me and I said to call the vet, it was not an ongoing thing. Now he hasn't been 100% since then but I suspect it will always be an ongoing thing at this point due to the Cushings/IR, but vet has cleared him since the initial episodes and his issues are managed (may be a mental block too, expecting pain, at times).

My suggestion is to take the horse where the ground is hard and have them move, walk, trot, and tight turns.

A hint with my gelding (MFT) is that he was always more of a trotter but since the initial episodes he tends to be more of a pacer. Interesting. I would look for slight differences in the gait since the norm.

The Cushings/IR diagnosis didn't surprise me as he was hugely obese when he came and has that classic look. He was 19 when diagnosed, and that summer hadn't quite shed out (bear in the winter but VERY sleek in the summer, he shed out to a summer coat that year but it was still .5-1" long, not normal).

Definitely where my brain goes for bilateral lameness!

It's really all about management and there is NO harm (and only benefit) to managing a horse like they are IR/Cushings. It's like some people may NEED to eat very healthy, lots of salads, etc, but it's not going to hurt anyone who doesn't need it to do that! A horse may just need shoes or whatever too, but I would expect that to be an ongoing thing, not a horse fine on pavement then sore on sand!

At his worst my gelding still walked pretty normally in a straight line on soft sand.
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post #6 of 7 Old 07-11-2016, 01:24 AM
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Yes, laminitis is just the acute stage, and if the inflammation is resolved while, preventing the lamini from failing, then there is no rotation, and the hoof will suffer no changes
Founder is the chronic stage, where rotation has occurred. Sometimes the entire foot just sinks, so that no rotation shows up, but the sole will be thin and flat.
Sometimes, the white line will be tight at ground level, with the entire sole and frog pulled forward, and separation further up
Repeat incidents of laminitis, as in an IR horse, will weaken those lamini with each attack
Distal descent, as a result of sinking, will cause ahorse to be tender on hard footing
Another test you can do, is to turn your horse sharply, so he would normally step around by crossing over in front. Horses with laminitis, will instead rock back and swing those front feet around instead. You can also take the digital pulse
WLD is a mis nomer. From Equinecom

'Despite its name, white line disease does not actually affect the true "white line" of the hoof, which can be seen on the sole where it joins the hoof wall and appears more yellow than white, according to Stephen E. O'Grady, DVM, BVSc, MRCVS, a farrier and veterinarian specializing in equine podiatry at Northern Virginia Equine in Marshall. White line disease occurs when bacterial or fungal infections creep into the inner nonpigmented space within the inner hoof wall's stratum medium layer. The infection slowly eats away the tissue, which turns into a chalky powder that spills out when scraped with a hoof pick.
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post #7 of 7 Old 07-11-2016, 11:46 AM Thread Starter
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Ohhhh. That makes so much sense! Thanks everyone!
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