Hi hipgranny1956,
Yes, I had rotator cuff surgery about 4 years ago....only at the time, I did not know that I had severe osteoporosis, but I did. To answer your question; how long did it take the anchors to heal? I'm not sure, but you can expect it takes awhile, but when I had a follow-up MRI maybe a year or so after the surgery as I still had pain, it showed that the surgery healed quite well. However, the surgeon did not use standard anchors to make the attachments to my bone because the anchor would not stay attached to the bone; so she used putty instead of an anchor, which again, healed very well.
So not sure if the healing process would take the same amount of time in your case ? Do you know what the surgeon used to make the re-attachment to your bone?