If you believe in natural treatments, here are some remedies for arthritis. Most vets do not believe in holistic treatments but they are safe herbs for dogs.
http://www.natural-dog-health-remedies.com/dog-arthritis-treatment.html#inflammation
I believe in what ever works. ;) CoQ10 is a wonder drug for almost anything age related.
From Hildy's photo of the dog on the bed, I'd make sure you come up with a way the pup can get down off the bed without jumping. You can purchase doggy steps or build your own or just put some pillows or cushions down so that she can use these.
Also, a steroid shot in the affected leg might encourage healing if the vet hasn't already given her one. I'm a big believe in therapy and appropriate exercises as well.