I have three titanium perforated new disks in my cervical area plus fusion C4-C7. I am 6.5 months post and I have NO sensation of having gone through such a potentially difficult surgery. No pain. No restrictions in head movement (my wife says I now have greater neck movement flexibility). ...I also have three new disks in my lumbar area. I don't have a reference - but my new titanium buddies seem to be doing their trick. And they have not (yet) set-off any TSA magnetometers...