In post-prostatectomy patients where urinary continence is never achieved, how and when would you plan RT when it is clinically indicated?  

I have seen this occur. Generally, I'll discuss it with the patient's urologist to get a sense of how they're planning to manage the incontinence. If they're planning an artificial sphincter, I'll generally wait until that procedure is done. If they're just planning to manage it medically, once it's...