Brian,
you might want to discuss with your GP or orthopod the idea of stem cell regenerative medicine. It is very common in human medicine, and becoming so in veterinary medicine. It involves harvesting a fat graft from you, very easily done, collecting the messenchymal stem cells and injecting them into the arthritic joints. Stem cells, or precursor cells, can differentiate into any type of tissue be it cartilage, ligamentous, etc. Also, they have the ability to cross-talk with the local inflammatory cells and produce inflammatory mediators that reduce pain and inflammation dramatically. These procedures are all in clinic and are often covered by insurance. It is not a for the rest of your life permanent cure, but it may by you several years of enhanced mobility and relative pain free fun.
Bret