Have you received additional opinions on what could be done? If not, I think that should be your next step. Even if you did at some point in the past, it might be a good idea to revisit your situation with at least two other surgeons, stressing the result of the test for allergic reactions.
The blood test you had done is the “gold standard” for allergic reactions where joint replacements are concerned. The skin test you had done doesn’t always give the best results. This is definitely something to discuss with your second opinion surgeons because you need to hear their opinion of possibly revising to a different implant that has less possibility of giving an allergic reaction.
All this said, some people just tend to make more scar tissue (adhesions) than others and it is possible for this problem to come right back with a clean out. However, it is my feeling that an arthroscopic clean out is more likely to result in this than undergoing a Lysis of Adhesions procedure by a surgeon skilled in that procedure. It is open surgery, but a number of our members have had positive results from it when nothing else worked. It’s worth discussing with someone who is experienced in the procedure. It may take some work to find a surgeon like this, but if you need help, just let me know and I’ll see if I can find some names for you.