Homeopathic Medicine has good remedies like Calc phos, Calc flour, Ac.flour, Symphytum, Calc carb, Silicea etc. which help in proper assimilation of the calcium on to the bones and primarily stop further degeneration of the bones. As of now in your case there should be proper healing for which too there are good remedies. Since you were on a steroid for about ten years, the probability of pace of degeneration is high.
I am sure Homeopathic Medicine will be of help to you.