There are a few holy grails the pharmaceutical industry is searching for. One is a nice little drug to repair the soft tissue of joints. Whomever finds it will make billions. In the meantime, most therapy is palliative not amelioritive and often can increase the injury over time. See: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3445176/
Regular anabolic steroids will not help you out. You can look at increasing your HGH levels which could help some. The easiest to use is MK-677 where you just pop a pill(s) to increase your natural production. You won't see huge increases in HGH, but at your age you should see some decent increases. Next are peptides such as CJC-1295. Finally, you could look into taking actually HGH, expensive to source real HGH though and pretty specific injection schedules to get the real benefit. If you went down the HGH path the best would be to combine with yoga or pilates which I have found to be really helpful with joint pain (mid-fifties here with plenty of accumulated injuries).
Also, get a full blood workup checking your male hormone panel, vitamin levels, hgh level, and inflammation. High inflammation should be addressed first before doing anything else if it is a factor.