Osteonecrosis is a disease where there is cellular death (necrosis) of bone components due to interruption of the blood supply. Without blood, the bone tissue dies and the bone collapses. In this book, the authors present current research in the diagnosis, treatment and management of osteonecrosis. Topics discussed in this compilation include bisphosphonate-related osteonecrosis of the jaw prevention and management in modern oncology; short stem hip arthroplasty in osteonecrosis of the femoral head; and concentrated autologous bone marrow aspirate transplantation (CABMAT) for osteonecrosis of the femoral head and bone non-union.