I wouldn't go back to my original surgeon and I don't think that you should, either. He's had two chances to get your knee right and he hasn't managed it.
On top of that, he revised a PKR to another PKR. The usual procedure is to revise to a TKR.
I think you need to find a surgeon who specialises in helping problem knees, and whose specialty is doing revisions.
Surgeons like that see problem knees every working day and they can often find a solution that has escaped others.
You'll need someone who has no connection, either professional or social, with your original surgeon, so that he/she can form an independent opinion, uninfluenced by the opinion of your original surgeon. You may have to travel outside you area to find the right person.
If you tag Jamie and tell her your zip code, she might be able to suggest someone.
By the way, the surgeon who gave you the disappointing second opinion may have been reluctant to appear to be "stealing" another surgeon's patient. There seems to be a sort of understanding between surgeons that they will not take on another surgeon's patient until a year after surgery. With a PKR in February 2018, you are coming close to that year now, so you might have more success with the next second opinion.