Hi SDP,
I am sorry to hear of what you are going through. I compared my MRI to your. Very similar degeneration on the L5-S1 level. The good news is that your other discs look very healthy to me. It is then obviously clear what your pain generator is and what level to operate at. Are your symptoms similar to what I had in the sense that sitting aggravates the pain and lying down flat should somewhat reduce it? Also, lifting heavy weights and bending forward should also aggravate the pain. If so, I would not hesitate with the decision on ADR. (PS. do bone density scan before deciding. Metal allergy test also, if you are paranoid.)
Sadly, Zeegers who I used has passed away. So the most knowledgable person in the world is out of your list
. However, the neurosurgeon that performed the operation in Germany is still available and he did an amazing job in my case.