**A Strategy of Bone Regeneration for the Treatment of Idiopathic Femoral Head Necrosis**

Tomoki Aoyama

Additional information is available at the end of the chapter

http://dx.doi.org/10.5772/62478

#### **Abstract**

Femoral head necrosis (FHN) is a difficult disease to treat. FHN results from an obstruction in the blood supply to the femoral head, which causes death of the bone-forming cells. For effective treatment of FHN, an osteogenic cell supply, revascularization, and provision of initial strength to resist collapse are needed. Evidence of favorable outcomes of cell transplantation therapy for the treatment of FHN is emerging. However, outcomes of treatment are influenced by the underlying FHN etiology and clinical stage. Therefore, understanding the epidemiology, clinical stage, and disease status of FHN is essential to inform treatment planning based on evidence. The aim of the chapter is to present and critically discuss the role of cell replacement therapy for the treatment of FHN based on clinical status.

**Keywords:** Femoral head necrosis, cell-based therapy, radiogenic stage, bone marrow, mesenchymal stromal cell
