Patient: I am 35 years old, I had a fracture of the femoral neck 2.5 years ago, which was fixed with three titanium nails at that time. I had an MRI at 1.5 years, a CT at 1 year, and a blood sedimentation test and a C-reactive protein test. Now I have a problem, that is, when to do the surgery to remove the three internal fixation, I have consulted many doctors, one opinion is after 3 years to consider, one is now can be taken, and now there is a new technology, is to do the filling in the three nail tracts when taking the nail, there is a kind of stuff can be filled in, triple opinion is not to take it in life, if taken, it is easy to appear I would like to ask you to help me with two questions, one is when should I take the internal fixation? Should I consider it now or after three years? Second, if I can take it out now, should I use that kind of filling technique? Mr. Zhang: Femoral neck fracture is prone to necrosis of the femoral head, and the longest reported necrosis is 17 years. But generally the necrosis rate will be higher within 3 years and will gradually decrease after 3 years. However, this is not very related to the internal fixation. Generally, the time to remove the internal fixation of the femoral neck is 1.5 years. Nowadays, the internal fixation is different from the previous one, it is made of titanium alloy, which is biocompatible and does not affect the examination, so I think if you do not have any special discomfort or inconvenience, you can not take it. If you want to take it, you can do it now. As for whether to do the filling, if you have no problem with the cost, you can consider it.