radiation and bone

Anyone have luck with radiation on bone mets? My husband first found about his cancer because of back pain. He had radiation last fall on parts of his back and after a few months the pain lessened. But now seems to be returning whenever he is standing or walking. MRI scheduled in a couple weeks to see if anything has changed. Not sure if the pain was less because of the radiation, or from the 12 "whole kitchen sink" chemo treatments he's had since then. Thanks.