PDA

View Full Version : Pony Foot Sore - Is This Laminitis/Cushings?


EAY
Oct. 17, 2009, 12:16 PM
My son's 13.2h welsh-cross pony, aged somewhere between 15 and 18, has been sore in his left foot for the last week. He was a little sore last Saturday, but he responded well to 1/2 a bute and Sunday he was sound and participated in a hunter pace. He's on field board and was not worked Monday or Tuesday. Wednesday he was worse. Thursday the farrier looked at him (he was due anyway) and he is fairly confident that it is some type of bruising or perhaps an abscess, though he could not find one. He did find a bruise but the pony was not sensitive to the hoof tester in that area. He did though have a strongly positive response in other areas of the left sole.

The farrier decided to put on front shoes (the pony has been barefoot since we got him last December). Several ponies and horses at the barn where I board who usually go barefoot have recently needed shoes because of the summer we've had (a wet spring and early summer followed by a dry end-of-summer with lots of bugs). The farrier said that it's been one of the worst summers he's seen in terms of foot problems of all kinds.

I jogged the pony this morning and he's better though still a little sore. The farrier said it would take a few days to see an improvement given how sore he was.

The reason why I'm concerned about laminitis is that the pony had a mild case with his former owner, who says that it was due to her failure to muzzle him during a wet spring with particularly lush grass (the pony was in a seventy acre pasture). She also says it was a single episode during the 10+ years that she owned him.

The farrier was fairly confident, though not 100% certain, that it is not laminitis. He could not find a rapid pulse, though he felt some slight heat in the front hooves. The pony is not sensitive around the coronet band. The hair there is lying flat, and the pony was not sensitive to the hoof testers in the area in front of the frog. The most worrying signs though were that the farrier thought he saw some flicking of the toes at the walk and that while he was working on him the pony did not seem to want to bear weight on his good foot.

The pony has not had any recent changes to his diet or routine. The pasture he is on is quite degraded so he's not getting a whole lot of grass, though they are starting to eat more hay now. He was fairly underweight going into the spring and we've been feeding him three meals a day (two of 1.5 lbs Southern States pellets that the BO gets in bulk and one of .75 lbs BS Vintage Performance and .75 lbs Purina Ultium). He is finally at a good weight. The pony is ridden about four days a week, sometimes more if he has a show.

We have been concerned about Cushings because the pony was late to fully shed out this summer (though a lot of them at the barn were this year due to the crazy spring weather), and we had already planned with the vet to test him in December (her preferred time for these tests). He also appears to me to have excess fat over his eyes, though he doesn't have any other unusual fat deposits. I have also not observed any excessive drinking or urination.

I am thinking of getting the vet to move up the test if possible so that we not delay instituting any dietary changes or medications that the pony might need. After the farrier's visit I talked to the BO about switching the pony to senior feed as a preventative and his response was that is is not what they eat that matters but how much.

deltawave
Oct. 17, 2009, 01:26 PM
Cushings and laminitis are vastly different, although you often see laminitis in Cushing's horses. You can also see laminitis in horses without Cushings, and vice versa.

Does the pony have a digital pulse? Warm feet? It would be odd to show laminitis in just one foot, but probably not unheard-of.

Never hurts to ice if you are suspicious, and withdraw all grain. Look carefully into "senior" feeds--they are often absolutely loaded with the wrong stuff for a laminitis-prone animal.

BuddyRoo
Oct. 17, 2009, 01:32 PM
Cushings symptoms also have a propensity to increase during normal periods of increase in ACTH. IE: fall.

I personally would work with your vet. If you suspect the pony to be cushingoid, you really can't test with the ACTH test until Jan. Almost all horses will show high levels right now.

Having a laminitic episode in only one hoof due to metabolic disorders is quite rare though not unheard of.

I personally would not have shod the horse after 1 weeks of discomfort. I would have probably put the hoof testers on him or radiographed....soak, etc given your description.

If the pony was getting a little long, it's also possible that he has an abscess. Does he tend to flare out much? That can hurt too.

EAY
Oct. 17, 2009, 06:10 PM
Cushings and laminitis are vastly different, although you often see laminitis in Cushing's horses. You can also see laminitis in horses without Cushings, and vice versa.
My fear here is that we're seeing a laminitic episode as part of Cushings. Though I'm aware that fall grasses can trigger laminitis it seems unlikely that this pony has enough grass in his paddock for this to be the cause. According to his previous owner he only had the one mild case and was only muzzled during the spring when the grass was particularly lush, and he was living in Virginia on good pasture.

Does the pony have a digital pulse? Warm feet?
We could not find a pulse and the farrier couldn't find one either but the ponies feet do seem a bit warm.

It would be odd to show laminitis in just one foot, but probably not unheard-of.

This was a big question that I had, i.e. how likely would it be for laminitis to just show in one foot?

Look carefully into "senior" feeds--they are often absolutely loaded with the wrong stuff for a laminitis-prone animal.

Any suggestions here? The BO actually feeds the old guys Vintage Performance rather than a "senior" feed. Is it true that a high fat/low starch feed is good for the laminitis-prone and the cushingoid as well seniors so given this pony's age and history it might be a good idea to change his diet anyway?

EAY
Oct. 17, 2009, 06:14 PM
You cannot use lameness/soundness as a determination of improvement if you are Buting a horse because Bute dulls pain. If there is still heat with the Bute, then it would be time to call in a vet and get some x-rays done.

The pony is not getting any bute at this time and he does seem to be getting progressively better. I wanted him to be bute-free when the farrier examined him.

EAY
Oct. 17, 2009, 06:18 PM
If the pony was getting a little long, it's also possible that he has an abscess. Does he tend to flare out much? That can hurt too.

He doesn't flare out too much (nothing compared to my thin-walled TB) but he was definitely too long. Unfortunately with all of the pulled shoes this summer the guys who only need a trim seemed to get pushed to the back of the line for the farrier's weekly visit. I hadn't realized that that could be a cause of an abscess.