Cynthia,
He was doing great and was probably at the 100% healed bone stage, when he did something, which no one saw and was not wanting to put weight on the leg again yesterday! It's better today, but back like he was maybe a month ago. We hope he just keeps getting better quickly. He was suppose to be at the " Ready to return to normal activity levels " on Thursday. Knowing how they repaired it, I can't imagine he could have re-injured the knee. We hope he just stumbled and jammed it or something. For all we know he rolled an ankle or something.
The wife says " No pets after these two move on to the dag park in the sky. " our last few dogs or cats have cost us an amazing amount of money.