I have a question about high phosphorus in foals.

I had a foal born windswept in the front and back. He is 2 weeks old now. The back has mostly straightened out, the front is fairly severe, at least on one leg, mild on the other. First vet, on the day he was born advised putting him down. We gave him a week, another vet advised splinting. We did that but it wasnt easy and felt like we were doing more harm than good. We've pretty much decided we would put him down this week. But someone had mentioned when calves are born crooked legged that it can be due to high phosphorus. One thing I noticed my colt does is urinate constantly.  Way more than normal. I work in dialysis and am familiar with hyperphosphatemia and its relation to calcium as well as how it is eliminated via kidneys. 

I wondered, if his phosphorus was high would his little kidneys be working hard to eliminate the phosphorus thus he is urinating often?  Also, if it was high it may be pulling calcium from his bones making them weaker and his ability to strengthen and straighten his legs on his own, more difficult or impossible. If it was high, is there a phosphorus binder that could be fed that could help eliminate the excess phosphorus.  (That's how we manage it in people. That and dialysis... but that one isnt an option ??)

Anyways, I'd love to hear if I'm way off base and I should accept putting him down. Or give him more time?

Thanks!

Bumping this up, hope someone answers. So sorry for what u are going through

Do you have fb? There's a page called horse vet corner. Might be worth posting on there!

That page on FB is full of nuts.  :)  

I would be tempted to call, text or email a university, Rood & Riddle, etc before using FB vets.  (Unless you knew the vet or had good recommendations) 

Just bumping up and curious what you found out? 

Please take your horse to a good equine vet instead of trying to save money asking questions on forums. You can get awful advice from people who don't know what they are talking about