The ideal time for treatment of ischemic necrosis of the femoral head in adults should be in the early to mid stage of the lesion, and active measures can prevent the femoral head from collapsing and preserve joint function. For nearly 100 years, clinicians have used intramedullary decompression with bone grafting, vascular implantation, bone grafting with muscle flap or with vascular flap to try to reconstruct the blood flow of the femoral head, but all of them failed to prevent further collapse of the femoral head due to the lack of effective osteogenic vitality and strong support in the femoral head. Since 1997, we have used self-designed instruments to scrape out the dead bone with a small incision and place highly osteogenic bone morphogenetic protein and bone marrow stem cells into the necrotic and collapsed femoral head, and take freeze-dried allogeneic fibula stem or autologous fibula to top up the collapsed femoral head. This reconstructs the blood flow of the femoral head and increases the mechanical support of the subchondral bone, thus effectively preventing further collapse of the femoral head. The clinical results are satisfactory. The incision is only 3-5 cm, and the blood circulation of the joint capsule is not damaged, and the joint movement is good. It is of great value in the treatment of young, early and middle stage femoral head necrosis. MRI of ischemic necrosis of the femoral head shows minimally invasive surgical approach to the necrotic area, using tunnel decompression to scrape away dead Bone marrow stem cells Microscopic image of stem cell transplantation can increase bone formation Bone marrow, bone marrow stem cells Stem cells with cancellous bone composite implantation of the femoral head Bone marrow stem cell transplantation, fibula support, X-ray 24 months after surgery, joint collapse not aggravated, good joint function, no pain.