Suggest Tests To Detect Osteoporosis

Hi doctor, My mother is about 50 and accidentally she slipped and fell on her left buttock, initially it was diagnosed as tissue trauma and advised complete bed rest, now after two months she can walk and move around, but cannot bend and complains of pain, exhaustion, if is standing for a long time. Now we are diagnosing for d-12 compression, but what all others factors need to checked, like there is also a possibility of osteoporosis as it is almost 9 years since she got menopause... what all tests, care should i take for my mom..i m working on diet, other than that...medications? Exercises? Pls advise....