It seems that the bones are related to Saturn, but I cannot make any recommendation due to not being sure how to use Saturnian energies myself, never had the opportunity.
But I just wanted to say that exercise will also help you, bones grow stronger when healthy stress is applied =)
Also empowering your Root Chakra should help!
As there are several factors in calcium absorption the exact spiritual approach depends on what exactly the issue is. I would get blood tests done to know more about your particular situation.
Look into nutritional supplemental shakes that are organic and good quality without harmful additives, that and look into the traditional Chinese medicine approach to treating this ailment.
Do some research as Chinese medicine can help this. That and also refer to centralforce as he is an expert in this field and offers consultations to Spiritual Satanists, it's not very expensive and would be very useful for your situation as he could point you in the right direction.
Look towards Qi Gong practice to see if that makes a difference, as it will further help strengthen your chi alongside the satanic practices you are already doing like the power meditations.