Oh bummer, I was hoping rest would be the cure. But I'm sure with this referral they will figure out the problem and a fix! I'm sending good thoughts to you both. 
all good thoughts and good wishes and good karma and prayers are being sent to riley and to you. i'm sure you are sick with worry. try not to be - i know he's gonna be all right. please keep us posted.It has been 2 weeks since he hurt his knee.
If you all could spare another good thought for my boy (and my pocketbook). If it is surgical i Know he is in the best hands possible. He is a higher anesthetic risk because of his uncontrolled addisons still. Im a worry-wort mom anyways. Thanks everyone!!