Coronary band dysplasia

[bathsheba8542]

Isn’t it always something? Turns out my 8 yo has coronary band dysplaysia (rare autoimmune disorder that attacks only coronary band and affects hoof production) and a P3 fracture in a hind hoof.

I’m putting him in vet and farrier recommended glue ons up front, and something stabilizing behind. We don’t even know if he’s lame because of fracture, or if the fact that his frogs are affected by CBD impacts lameness as well.

Question is - anyone have experience with CBD? I have a broad list of recommendations from equine dermatologist, and definitely do not want to go the steroid route. So far trying daily washes with Phytovet shampoo and leave-in ‘mousse’, as well as cortisone creme to manage clinical symptoms.

Looking for any thoughts on whether anyone has successfully managed the symptoms and delayed hoof deterioration such that horse can have a successful riding career. Of course, that may be mediated by whether the fracture is affecting lameness (don’t even know how old it is - he didn’t just ‘come up lame’ one day), or it’s the frog/sole/hoof wall condition, but one thing at a time.

[skyy]

The only thing we’ve found to work is steroids. It keeps the coronary band flare ups under control. Our horse is sound without shoes and lame with them. He’s had this condition for well over 2 years now and continues to have a career.

[ZiptotheStar]

I had a DraftX that had symptoms that lined up with this disease, but no one knew exactly what it was. He had horny growths all around his coronary band, his frog growth became compromised, and his chestnuts constantly fell off leaving bloody flesh underneath. He briefly responded to steroid treatment, but it didn’t last.

I opted to give him back to his previous owner for a retirement home instead of going to A&M which finances did not allow at the time.

[bathsheba8542]

Skyy…the clinical symptoms are pretty benign so far so steroids are not recommended yet … his coronary bands look odd but not bloody or oozing. Obviously the deteriorated frogs are a big problem. Any thoughts on why your horse was sound without shoes rather than with?

[skyy]

Not a clue. The horse had always gone in 4 shoes and continued to do so at the initial onset of the symptoms (actually for the first year or so). Last summer he had a huge flare up with bloody coronaries and frogs that defy explanation. We also don’t know the cause of the flare up. We tried bar shoes to give him more support but that made the lameness worse. You would think that getting those nasty frogs off of the ground would have made him sounder but that wasn’t the case. At his wit’s end, our farrier suggested pulling the shoes and the horse was immediately sounder and then completely sound. After we got a handle on the coronaries and frogs we tried putting regular shoes back on him and he was lame again. We have discovered that his feet prefer the “Less is More” management system so we now do very little to them and he is barefoot. He is on low dose daily steroids and topical cortisone cream on his coronaries. We have tried to wean him to every other day with the pred but it doesn’t work.

[TigerTrick]

Curious…what do your horses coronary bands look like? One of my mares developed what was diagnosed via biopsy as coronary vasculitis, but it has been mostly unresponsive to treatment, and I came across coronary band dysplasia in my research.

What diagnostics did you have done to rule out other things?

[bathsheba8542]

My vet did a punch biopsy and culture…

[ZiptotheStar]

I have a few old not-so-great pictures to share if it helps anyone. We also did a punch biopsy, which extended up saying he had a a form of Vasculitis. We treated him for it (avoiding sun exposure, steroids), but honestly the symptoms never matched up and I had several vets tell me that with these auto-immune and rare disorders a biopsy is not always conclusive.

http://www.shemovedtotexas.com/wp-content/uploads/2011/07/right-hind.jpg

Above is his right hind. You can see a lower hoof quality growing in, the horny growth around his coronary band (it would break off easily and then bleed), keratin finger like growths coming up from his heel and in the bottom right what his chestnuts looked like on a good day. Note, I never picked his chestnuts off, they just fell off to this tender skin. All four feet looked like this but his hinds were the worst.

http://www.shemovedtotexas.com/wp-content/uploads/2011/09/6137944671_bbd34a4c40.jpg

And here is the strange frog growth that kept getting worse until I decided to retire him.

[bathsheba8542]

Thanks Ziptothestar - anyone ever suggest canker?

[ZiptotheStar]

Canker doesn’t usually present itself in all four feet, and isn’t supposed to effect the chestnuts. I had two of my vets rule it out, but since I never 100% figured it out it’s hard to say honestly. Hope you have much better luck!

[skyy]

Pemphigus was the initial tentative diagnosis and I don’t know how pemphigus when it is isolated to the coronaries and coronary band dysplasia are different. A biopsy was not done as the owner had observed that any physical manipulation (like cutting a chunk off ) of the coronaries tended to make the coronaries go crazy. The diagnosis was made on observation and response to steroids. It seems that coronary band dysplasia is a better fit based on the frog involvement and the description of spongy, wild frog growth in addition to the crusty, lumpy coronaries.

[Rosie10]

My horse has something going on with her hooves and frogs at the moment probably caused by a drug reaction, she also has hot legs, swollen pasterns/fetlocks and bounding digital pulses, do any of your horses get that with this?
Here’s some pics of her hooves

Here

Here

Here

Here

[Rudy]

Pemphigus was the catch all diagnosis at one point for coronet band dystrophy but more veterinarians and researchers are realizing it is not the same thing.

Add me in to the ever so tiny group with a horse with confirmed CBD.

No amount of steroids, antifungals, antibacterials, hoof conditioners, biotin, mineral supplements, or anything has made a lick of difference over the past 7 years and the horn production continues to deteriorate.

[bathsheba8542]

Rudy, so sorry to hear you’re going through this. Have you been able to keep your horse sound? I’ve had mine for 3 years and I realize now that he probably came with CBD…we just never investigated why the hair was standing out the way it does. Vet didn’t think it was anything more than an allergy at the time.

Rosie10, no, my horse’s coronary bands and hooves do not look like that. Very peculiar though…has the vet been out yet?

[Rudy]

He is serviceably sound (23 yes old) until this…

http://i26.photobucket.com/albums/c134/Stalknndashadows/f2.jpg

At which point he lives in EasyBoot Epics until there is enough wall to nail to again. The wall loss occurs about ever 1.5 years.

[Rosie10]

[QUOTE=bathsheba8542;7570810]
Rosie10, no, my horse’s coronary bands and hooves do not look like that. Very peculiar though…has the vet been out yet?[/QUOTE]

Thanks for your reply Bathsheba8542. Vet saw her just over a month ago when it was just starting and he said it was part of what was going on with the rest of her. Its spreading down her hooves quite quickly. She either has vasculitis or an immune mediated/auto immune disease caused or made worse by a hypersensitivity to drugs, which is why i wondered if her hooves were similar to your horse or any of the other posters horses.

[Rudy]

i wondered if her hooves were similar to your horse or any of the other posters horses.

Nope, looks nothing like my horse’s hoof problems. Take that as a good thing though!

[Rosie10]

[QUOTE=Rudy;7572454]
Nope, looks nothing like my horse’s hoof problems. Take that as a good thing though! :-)[/QUOTE]

Yes i will thanks Rudy Sorry about your horse…

[bathsheba8542]

Started using a new treatment routine last week. Wash every other day with PhytoVet CK shampoo; apply Phytovet S mousse after drying. Next day spray with Genesis. Feed Pentoxifylline 10 tablets twice a day.

So far his coronary bands look much better. The hair is laying flat and the scaling at the heels is much diminished or gone.

Of course no clue yet whether his frog production will be improving. We’re on this regimen for another week and will then go to glue ons.

[hollander8282]

[QUOTE=bathsheba8542;7580967]
Started using a new treatment routine last week. Wash every other day with PhytoVet CK shampoo; apply Phytovet S mousse after drying. Next day spray with Genesis. Feed Pentoxifylline 10 tablets twice a day.

So far his coronary bands look much better. The hair is laying flat and the scaling at the heels is much diminished or gone.

Of course no clue yet whether his frog production will be improving. We’re on this regimen for another week and will then go to glue ons.[/QUOTE]

I am curious is this treatment still working? I have a horse that was recently diagnosed with this and it is so frustrating! I have found a couple of forums, but they always end with someone trying something new. Right now the vets have prescribed high doses of steroids and a long term antibiotic. Thanks!