Included patients presenting with spinal metastasis secondary to breast or prostate cancer are randomized to two groups, intervention and control. Both groups receive standard radiotherapy, which is currently the gold standard of care for such patients. The intervention group will also receive a vertebroplasty \[single or multiple level(s)\], while the control group will receive a simulated vertebroplasty, where local anesthesia and gentle hand manipulation will be used but the vertebra will not be accessed. The primary outcome is pain relief, though other factors such as quality of life and pain medications will also be evaluated.
There will be an interim analysis after half of the patients have been treated with a follow-up of 3 months. In the analysis, comparisons will be made between the two groups and each patient's individual progress will also be analyzed.