Bone metastases occur when cancer spreads to the bone via the bloodstream. A study analyzed the effectiveness of radiation therapy after surgery for cancers that have metastasized to the bone. The study found that patients who received both surgery and post-operative radiation therapy to stabilize the bone were more likely to return to functional status compared to patients who only received surgery. Specifically, 53% of patients who received both surgery and radiation achieved good functional status, compared to only 11.5% of patients who only received surgery. The combination of surgery and radiation also significantly increased survival time compared to surgery alone.