No experience personally, but the Mother in Law broke her foot two years ago and got the bones fused and plated. She is still in pain now, and after numerous visits to specialists they have, finally, found one of the screws has come loose and is rubbing against another bone. Also they finally discovered another hairline crack that has been missed by several xrays and a couple of MRI’s.
Just saying, although it does sound like you have had multiple opinions, one more from a fresh set of eyes can sometimes help.