Well, it's good news that he didn't see anything wrong with the implant. But that still leaves you with your current situation. How do you feel about the idea of having another revision with this new surgeon? You do have some time to consider all the options. I think the idea of resuming your walker is good as it will keep less pressure on your knee for now. If you do resume therapy, just be sure it doesn't consist of anything that causes you pain.
There are times that a joint just doesn't work right after surgery and whatever is causing it doesn't show on the xrays. In these cases, when people get the revision by a top flight revisionist, things are okay. Of course, there is no guarantee that would be the case with you, so as far as another surgery goes, you'll have to decide if you want to go that route. I can tell you that I've heard some really good surgeons saying that balancing a knee can be very difficult and that they can do multiple revisions with no problems for the patient. So, if you do opt for more surgery, don't worry about the fact that it would be a second revision.
Please continue to let us know how things go.