ScienceDaily (Nov. 2, 2007) — An analysis of data involving more than 2,000 patients from 17 U.S. institutions demonstrates that men with high-risk prostate cancer who receive radiation therapy after a prostatectomy were less likely to have a recurrence of disease.
What's more, men whose cancer persists after surgery were less likely to see the cancer spread if they receive radiation (salvage therapy)...
These are the conclusions of a study presented October 30, 2007 at the American Society for Therapeutic Radiology and Oncology's 49th Annual Meeting in Los Angeles.
Citation: Fox Chase Cancer Center (2007, November 2). Radiation After Surgery Keeps High-risk Prostate Cancer At Bay. ScienceDaily.
I haven't found any more details on this study, but will post them as soon as I do.