I just had an MRI last week and I have the same stuff + more in me, but it is in my cervical spine and the mri was my lumbar area. Since my neck area wasn't going to be in the machine, they said no problem. I did ask them that same question before the test, they said no issue because of the above, but they did say it could be a problem if those areas were in the machine because even though it is all titanium, the stuff CAN get slightly magnetized over time.