There is a huge misconception about steroids and their ability to heal joints. Many think that nandrolone based steroids will heal your joints, but this is not true. Such steroids will only reduce the inflamation and will hide the pain, but they will not actually heal the injuries. As a result, the athlete may think that the joints are alright, and keep hitting them hard, which will result in nagging chronic injuries. Therefore, it is not a good idea to use steroids for this purpose.
Better use something that was meant for this purpose, such as Ostarine MK-2866 and N2Joint RX. These two compounds actually heal the joints, and do it really fast. Besides, you will not have to bear with the side effects of steroids, which is a good advantage. What's more, SARMs are legal, so it is pretty easy and safe to get ostarine. Personally, I have been using these two compounds, and could experience from first hand the great effects they have on joints.