It is well known that reinforced concrete is widely used in building structures, but have you heard of it? It can also be used to treat human diseases. Of course, the reinforced concrete here is not the real steel and concrete in the traditional sense, but its principle is the same as the effect produced by ordinary reinforced concrete. Professor Wu Chungen, director of radiology department of Shanghai Sixth People’s Hospital East, took the lead in proposing a new minimally invasive treatment technology – “reinforced concrete technology”, and used it for the treatment of human long bone metastases, which has achieved good clinical efficacy and opened up a new world in the treatment of metastatic bone tumors. treatment, and it is reported that the technique was first reported in the international authoritative journal J Vasc interv Radiol in May 2014. Most patients with tumors will eventually have bone metastases or even cause pathological fractures, especially in weight-bearing long bones, such as the proximal femur, where fractures prevent patients from walking and produce severe pain, which more severely affects their quality of life. The best strategy to circumvent this risk is to perform surgery before the fracture occurs. Among them, surgical prosthesis replacement or application of internal fixation is the standard treatment to increase the mechanical stability of the lesion, however, it is difficult to determine whether surgical open surgery is necessary due to the difference in the probability of fracture occurrence, the patient’s general condition and the expected survival time, which, together with the high trauma, risk and cost of open surgery, is often not accepted by patients. However, minimally invasive interventional therapy has brought a boon to patients who cannot undergo open surgery. However, for the femoral head or femoral neck region where pathological fracture is about to occur, the conventional interventional treatment, pure percutaneous osteoplasty, is biomechanically deficient and does not provide sufficient mechanical stability, and there is still a risk of fracture, In order to overcome this deficiency, Wu Chungen, Director of the Department of Radiology at the East Hospital of Shanghai Sixth People’s Hospital To overcome this deficiency, Professor Wu Chungen, Director of the Department of Radiology at Shanghai Sixth People’s Hospital East, innovatively proposed percutaneous internal fixation combined with percutaneous osteoplasty, which is also known as the “reinforced concrete technique”: the needle core with the tail removed enhances the lateral support, while the bone cement fixes the needle core with the tail removed. In short, the core acts as a reinforcement and the bone cement acts as concrete. The combination of the two greatly improves the stability of the femur. This technique has been successfully implemented clinically with significant results. As a new minimally invasive technique, the “reinforced concrete technique” has the following advantages: ① the blood loss and damage caused by surgery is minimal, which can reduce the chance of infection and tumor metastasis at the surgical site; ② surgery can be performed under local anesthesia, which greatly reduces the risk of surgery; ③ compared with open surgery, interventional treatment can significantly shorten bed rest and hospitalization, and the hospitalization cost is greatly reduced. (3) Compared with open surgery, interventional treatment can significantly shorten bed rest and hospitalization time and greatly reduce hospitalization cost; (4) During surgery, other treatment methods can be combined to diagnose and treat the lesion, such as puncture biopsy and radiofrequency ablation. In conclusion, percutaneous internal fixation combined with percutaneous osteoplasty is a safe, effective and feasible method for the treatment of long bone metastases with the possibility of pathological fractures. It is an ideal alternative treatment option especially for patients who are not suitable for open surgical treatment because of their health condition, and greatly improves the quality of life and well-being of patients with advanced tumors.