Welcome to the OCF forums.
Sorry to hear about the ongoing complications from your radiation therapy and bone grafts not staying healthy!
There are likely a few folks on here that have experienced something similar, but it may be a bit before folks happen across your message.
You may want to check out the "Medications/Treatment/Procedures" forum and the "After Issues" forums and do a search for "bone graft after radiation" etc... if you have not already done so.
You may be able to find some folks who have had similar issues and direct message them for a quicker response than hoping they happen to see your into message in the intro forum.
I believe there is setting where you can be emailed whenever someone responds to a message, but I've yet to have any luck with it (I probably did not set that part up correctly on my OCF User settings or something).
Best wishes as you make decisions on how to proceed with the future graft salvage surgeries and seek advice.