@kathleen1314 My TKR was done in 2009. After surgery my pain was worse than before the operation. Three years out, my surgeon thought I could have an allergy to the nickel in the titanium replacement, he wanted to do a revision. When my primary physician discovered this she referred me to an allergist for metals and resins testing, patch test. I wasn’t allergic to nickel but to the bone cement. The only words the allergist to me were, “I don’t envy you.” It has been a nightmare. Acrylic nails have the same ingredients as bone cement. It is rare to have the bone cement allergy but I feel since nobody is familiar with testing for these allergens some people may be putting their bodies through surgeries not realizing it can be a possibility of continuing pain. My operating surgeon would no longer see me after receiving my allergy results.