Last week I got a second opinion from a well-know orthopedist in my area. He said, yes, they put in the wrong size part, and he uses some Stryker but wouldn't use the model my surgeon used. He usually uses Omni-Science, which is modular/adjustable. He told me I not only have abnormally wide femur necks, I also have abnormally long femur bones. And the stem of the replacement has sunk in my femur from the date of surgery to the 6-week post-op. I don't know if it's dropped more since then! He told me doing a revision isn't advisable because if they take out the stem and put in a new one, there's a good possibility my femur bone will shatter and I'll have even more problems. He said I should have my left hip replaced, and I will not have problems in the future. I see the surgeon who wants to replace my left hip next week and I"ll have him take new X-rays. I'm still waiting to hear back from one of my three attorneys.