Preoperative embolization in spinal tumour surgery: Enhancing its effectiveness.

•Embolization seems to be effective in reducing blood loss in HCC & thyroid metastases.•It seems to be effective in reducing blood loss in primary spine tumours.•Total embolization of arterial supply resulted in significantly less blood loss.•Median blood loss was lower in patients receiving a more proximal embolization.•Embolization is effective when the patients underwent surgery within 13–24h.