Splits in frogs

Landcruiser

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My youngster came to me in Oct with typical "pancake" feet, long in the toes, heels forward and quarter deformity/flare as a consequence. She's just 3, never shod of course. Her heels were not contracted - quite the opposite, and her frogs looked pretty good. Horn quality was decent, although she had/has what look like hairline cracks in he hooves in a couple of places which run diagonally, not with the tubules - as if they have been the result of an impact or stress.
. I've been gradually taking back the toes, and the new growth is coming in at a better angle. However, I noticed yesterday they two of her frogs have long splits, and one has a hole about 1cm deep as well. The splits extend full length, they are "closed" and look almost like a razor cut, albeit not exactly straight. They go right to the back of the frog. I've packed Red Horse Field paste in the splits, and hoof stuff in the hole. It doesn't look or smell like thrush...but what could have caused the splitting?

She's out 24/7, has unimproved grass, a track, a large yard and turnout area, open access stables, so plenty of movement and a variety of surfaces. She's on Thunderbrooks chaff, a tiny bit of TB muesli, micronised linseed, Equimins, yeasac, salt, plus extra Mag Ox now the grass is growing.
 

Landcruiser

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Aha! I think I may have answered this myself. Fig 5a is very much what her hoof shape is. I wonder if the rain over the last couple of days has softened the frogs and allowed the shear force to split to split them. I guess the answer then is to keep trying to get the toes and heels back where they should be and keep the fissures clean and packed with anti thrush stuff.
https://www.equipodiatry.com/news/news-essays/fissure-formation-at-the-base-of-the-frog
 

Highmileagecob

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Ours went out on poor pasture a couple of weeks ago, and a few of the oldies are throwing small abscesses in the frog. You are doing the right thing - maybe consider a gentle peek under the cut edge to check for a cavity?
 

Landcruiser

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Ours went out on poor pasture a couple of weeks ago, and a few of the oldies are throwing small abscesses in the frog. You are doing the right thing - maybe consider a gentle peek under the cut edge to check for a cavity?
There's no "under." The splits go straight in, there are no flaps. I don't feel they are massively deep, they are weirdly like razor cuts, but them being shear lines as per the article seems to make sense..
 

Reacher

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I was about to ask how is the medio-lateral balance / hoof landing? - then I saw the link you posted which looks really good, I will read properly later.
 
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