She is doing fine...able to get around pretty much at will. There's a pronounced limp, but she is no longer carrying the leg. We are keeping her knocked out with trazadone and gabapentin. She'd be running around like a nut otherwise. Of course she only had one knee done, so she can compensate with the other. Im not sure how Cowboy will do with both hind legs out at the same time. My guess is you will have to use a harness of some sort (a towel looped under his abdomen) to take the weight off the legs for the first week or so when he goes to the bathroom. I didn't realize he was 70 lbs. That's larger than he looks. I was guessing around 50. Either way, tightrope would work well for him. The issue will be finding someone to do it.