Bone tissue is one of the most common sites for distant metastasis of malignant tumors, and the appearance of bone metastatic cancer means that the tumor has entered the terminal stage, which will obviously shorten the survival time of patients, and meanwhile, the severe bone pain caused by bone metastatic cancer will seriously affect the quality of patients’ survival. Radiofrequency ablation therapy has been widely used in the local treatment of liver cancer, lung cancer and other tumors, and its biggest advantage lies in the fact that the necrosis of tumors within the scope of local treatment is very thorough and it will not produce any systemic adverse reactions. Radiofrequency ablation therapy for bone disease is still in the initial stage, and it is more often used in the pain relief treatment of osteochondroma, and radiofrequency ablation therapy for bone metastasis of malignant tumors is rarely reported. Recently, such a patient was admitted to our second interventional (comprehensive intervention) ward. This patient is a female, aged 75, with cervical cancer as her primary diagnosis. She underwent surgical treatment soon after the earliest detection of cervical cancer, supplemented with conventional radiotherapy and chemotherapy, and several uterine artery chemo-infusion procedures were performed in our department at a later stage, and her tumors in the cervical region had always been under relatively satisfactory control. However, during a recent review, the patient developed more intense right-sided back pain, which greatly affected the patient’s quality of life. After learning about the patient’s situation, the experienced director Lu Zaiming hit the nail on the head, “bone metastasis”. We immediately booked a PET-CT examination for the patient, and the results were not what Director Lu expected, bone metastasis of the right 7th posterior rib had really occurred (Figure 1B). We informed the patient’s family about the situation, and the family showed great anxiety and despair, thinking that “the tumor has flown” and the patient would not live long. The treatment team led by Dr. Lu Zaiming and supervised by Dr. Mao Xiaonan immediately held an intra-departmental consultation. Since the patient had only one bone metastasis and had severe bone pain, we recommended bipolar needle radiofrequency ablation therapy to the patient. Bipolar needle radiofrequency ablation therapy can cause complete necrosis of the tumor within the treatment area, which not only can effectively control the tumor progression, but also can completely control the bone pain due to the thermal necrosis of the local nerves. After understanding the basic principle and operation process of radiofrequency ablation therapy, the patient decided to try this new technology decisively, and we immediately prepared for the surgery on the next day. The procedure was very simple and smooth, with CT localization, local disinfection and anesthesia, bipolar needle puncture (Figure 2), heating and ablation, and the whole procedure took less than 20 minutes to complete. On the second day after the operation, the patient felt that her right back pain had disappeared and her activities were not restricted. She thought that she was cured and was happy, and she was discharged from the hospital after three days of observation with a smile on her face. After discharge, we followed up the patient closely to keep an eye on the control of her bone pain, and it was gratifying to see that the patient’s right back pain never returned. Three months after the operation, we reviewed the patient’s PET-CT, and the result was even more surprising, the patient’s original 7th posterior rib lesion uptake completely disappeared (Figure 1A), which proved that the lesion had completely lost its metabolic activity, and reached the standard of cure. Upon review, bipolar needle radiofrequency ablation for bone metastatic cancer is the first attempt in our hospital, and even in the whole Liaoning province, and even in the whole country, there are only a few applications. The bipolar radiofrequency needle has achieved extremely satisfactory curative effects in both tumor control and bone pain suppression, which is worth to be vigorously promoted in the clinic. Figure 1: The right picture shows the high metabolism of the tumor before the operation, and the left picture shows the complete disappearance of the tumor metabolism after the operation, which proves that the tumor has been completely eliminated Figure 2: The radiofrequency needle was inserted into the lesion during the operation, and the ablation treatment was carried out