Why are the doctors you have seen refusing to do the surgery? Do they say you are too young to do the surgery, or do you have another medical condtion they are concerned about?
I have severe OA in both knees, and my doc doesn't want to do surgery until I turn 60. I also have DDD and bulging disc in cervical, thoracic, and lumbar spine. I know how the pain can control your life. So sorry your pain meds are not working.
Have you told the docs your pain medication is not working anymore? You might need to see a pain management specialist. I am not a doctor...just sharing ideas.