For hyper vascular tumours like renal cell carcinoma and thyroid carcinoma, preoperative embolization of metastases was first described. The main goal of this systematic review was to find long bone metastases that could benefit from preoperative embolization to reduce perioperative blood loss and blood transfusions. Because any less than total devascularization increases blood loss and red blood cell transfusion during surgery, interventional radiologists should pursue and embolize every feeder to the metastasis.