Diagnosed with Prostate Cancer in mid July . I am 70 years old and I am choosing to go with 5 weeks or radiation therapy . The Urologist told me about the placement of the SpaceOar hydrogel which is injected between the prostate gland and the rectum . It is supposed to reduce radiation to the rectum and reduce side effects . I had this done on August 30th. I am wondering if any other members had a SpaceOar and went through radiation? What side effects should I expect . I am concerned about Erectile Dysfunction. My radiation treatment begins in a week . Thank you !