Interventional radiology in bone metastases

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Interventional radiology plays a significant role in the treatment of bone metastases by various techniques, percutaneous or endovascular. Vertebroplasty is the most well-studied technique for stabilisation of spine metastases as it induces satisfactory stabilisation of the vertebra and offers clear improvement of the quality of life. Due to the success of this technique cementoplasty of other bones, mainly pelvic girdle, has been largely developed. The development of reinforced cementoplasty allows treatment of pre-fractural osteolysis of some long bones. The heat due to the polymerisation of the cement induces carcinolytic effect but this effect is not as important as that which results from radiofrequency destruction. This last technique appears currently as the most important development to definitively destroy bone metastases and is progressively replacing percutaneous alcoholic destruction of such lesions. Angiographic techniques, such as endovascular embolisation, can also be very useful to reduce the risk of surgical treatment of hyper vascular metastases. Chemoembolisation is currently developed to associate pain relief induced by Endovascular embolisation and the carcinolytic effect obtained by local endovascular chemotherapy. All these techniques should develop largely during the next years.

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