Does anyone know how rapidly degenerative joint disease progresses?

autoimmune arthritis? osteoarthritis? due to wear and tear is usually a function of use.
Factors such as weight and physical activity can affect rate of degeneration. Rate of degeneration varies from patient to patient. Please see your physician.

which disease?
and the answer is in every case, it depends

depends on the health of the person and how prolonged this disease went unmanaged before it was diagnosed if i was you i would ask the hard questions or find another medical provider and sue if thats what it takes to get some answers
i work in the medical field and believe me the are mostly lazy only working to pay the bills like there ferrais

no but eating the white ends of chicken bones helps and so does avacados,avacados lubricate the joints--why?

Two of my patients have got spinal surgery in India.One was treated for spondylolistheis by spinal fusion and the other for discectomy of herniated disc and replacement with artificial disc.Both of them are very happy with the results.Their pain and other symptoms due to nerve compression have totally gone.

Spinal Surgery is very cheap in India.There is one company that is very famous in India that arranges spine surgery for foreigners in India.They are called the Forerunners Healthcare.I read a lot about them in the Newspapers and about their patient stories.I have also read that they arrange financing for american and canadian patients as spine surgery is not covered by insurance.They also have photos pasted of their International patients.You can checkout their website.

The cost savings are incredible.As a doctor i personally believe that your spine surgery can be easily handled in India as the quality of healthcare available here is simply best in the world.The surgeons are USA/UK trained and facilities are 5 star.both my patients had gone to India through the forerunners healthcare company.i strongly recommend you to talk to this company,checkout your options with surgery from them.

http://www.forerunnershealthcare.com

Your options for surgery-
1)discectomy
2)laminectomy
3)laminotomy
4)discectomy with disc replacement