The only way to repair the wire is to go back in and fix it. However, as long as your
sternumSternum - view of the outside (anterior) is
stableStable angina
Unstable angina there really is no need to anything at this point. So, I would not be overly worried about it. As long as you can do most things without any discomfort and the popping doesn't bother you too much you can probably go on without any surgery.