Hip Disease More Condition_symptoms Where Can I Find More Detail About The Disease Process NECROSIS?

Where can I find more detail about the disease process NECROSIS? - hip disease more condition_symptoms

I need to explain the changes of tissues in the disease course, I opted for the necrosis of the hip, can someone tell me in the right direction where to find wensites / m books that go "can help. Or someone me a brief overview. I understand that the necrosis of oxygen and stops the blood supply to the bone, but I want to know how they are affected tissue.
Thanks