There are many treatment options for young and middle-aged patients with ischemic necrosis of the femoral head in the early and middle stages. We use minimally invasive scraping to remove the dead bone in the necrotic femoral head, and then use the patient’s own cancellous bone to fill the resulting cavity, and finally transplant the fibula to support the reconstructed femoral head, using this method to treat more than 300 cases of youthful femoral head necrosis. Since we have mastered the law of differentiation of bone marrow stromal stem cells into osteoblasts, we use minimally invasive treatment, i.e., we reduce the disturbance to the femoral head that lacks blood supply itself and retain the blood supply to the femoral head to the greatest extent, while locally implanting autologous bone marrow and bone growth factor (BMP) and implanting autologous fibula. After long-term clinical research, this procedure is one of the best treatment modalities for early femoral head necrosis with minimal trauma, rapid patient recovery and remarkable clinical efficacy. Principle 1. Minimally invasive decompression reduces the internal pressure of the femoral head and interrupts the vicious cycle of ischemia and increased intraosseous pressure that leads to the disease. 2.The dead bone with extremely hard texture in the femoral head is removed, providing basic conditions for the regeneration of blood vessels and new bone in the femoral head. 3, Autologous cancellous bone acts as a filler and support, and also induces osteogenesis. 4, The grafted fibula provides support to prevent collapse. 5, The implantation of bone marrow cells and bone growth factor provides another guarantee for bone regeneration.