Hi Mr., welcome again to our humble family. Hopefully, you already saw the topic in this forum about ADR qualifications, risks and complications.
In the meantime, forgive the curious question, but were you screened for osteoporosis? Are your facets in good shape? I ask because there are slight differences among clinics in terms of assessing patients for ADR. We've talked about frequently in the past four years.
Please check out the seach/advanced search utility, as it works well and is easy to use....
Good luck in the coming weeks!