I have been getting by with zero cartilage in my right
knee for over five years now. It's no laugh but I get
by. I presume you have been prescribed Mobic,
a non steroidal anti inflammatory?
My policy has been to delay any replacement till I
have no choice. This has been driven, largely, by
fear, but also to see what technical improvements
arise before the inevitable.
Good luck and talk to your doctor. Your friends
here can only provide moral support.