I have never had a LP and/or CCL surgery fail....and I don't believe it is risky at all if you use a boarded surgeon.
I also have never taken or been advised to take a pup to physical therapy after surgical repair.
No disrespect but do remember the therapist is in the business of making money.
As Taylor said, I also concur...have never had legs wrapped either...except in fractures.
Lastly, I have never had to take a pup back for a second surgery.
I have taken countless pups for orthopedic surgeries.
I do hope little Max is ok.