Stumbling, off on left, buckles at the knees

I JUST got this horse... so I am scared that this is going to be something chronic. I have all the xrays, I got them done, and they are thorough...and recent. All ok.

He stumbles on his left front, like a knee buckling.

If tacked up, with girth loose, and you try to pick his feet, he will buckle in the knees and go down slowly. If he is tacked, and he trys to nibble on a piece of hay on the ground, both knees buckle and he will very slowly go all the way down.

Now, he is off on the left front. Very pronounced.

I had a vet come out... said it could be bruising in the heel. Got him shod - went sound for about 4 days.

Got chiro.. man said he was very blocked...left shoulder was in spasm. Cracked him. This was just a day or two after the new shoes were on.

Im really nervous, not sure what to do!

J

I just joined this forum and may be a bit late in replying, but I wondered how your horse is currently? Have you had an equine vet perform a full lameness and neurological exam on your horse? Was there a full pre-purchase exam done on him before you bought him? I'm assuming since you say you had a bunch of x-rays taken that one was. If so, it should have included both lameness and neurological tests. I would go over your pre-purchase exam findings and see if your vet noted anything abnormal in either of those sets of tests as the symptoms you are seeing could be either.

if the horse was sound for four days after shoes- its probably a stone bruise or maybe you need to get someone out to check for a nail. Has the horse been moved to new pasture? if so he may be in the process of founder - he maybe have been on painkillers when you bought him - theres also narcoleptic problems where the horse will fall asleep - if you check the front fetlocks and see scuffing thats one of the first signs of narcolepsy- it could have been hidden prior to purchase if they wrapped his front legs....