I have no fear. Just like any medication you might take to improve a physical or mental ailment, there are potential side effects. I once suffered from debilitating Rheumatoid Arthritis until some wonderful medications were made available at the end of the 1990s. I can't tell you how many people I counseled on the benefits of these medications, but were too worried about the .01 of 1% that could get the horrendous side effects. They chose a life of disability, when a solution to their problem, that was low risk, was staring them in the face. I refuse to live my life in fear, because I read this article.
I have no regrets. I am 1 month post op and look forward to an improved quality of life, that wasn't available by doing nothing or with a THR (OBTW, there are risks there, too). We all know the risks going in and we all still chose to proceed with this wonderful surgery. Yes, there are people who a Hip Resurfacing is not the right choice. Hopefully, their surgeons have highlighted all the positives/negatives and they were able to make an informed decision. There are also people who suffer from terrible problems after their HR and have to go on and get a THR. Doing nothing was not a viable option for any of us.
OBTW. Your chance of getting hit by a car while crossing the street is greater than your body shutting down due to Cobalt poisoning. Just my perspective and I think most "surface hippy's" are with me.