What Causes Back Pain With Nagging Pain In Penis?

About 5 years ago, I experienced trauma which caused serious lower back pain. I knew that something had happened in my genital region but the pain in my back was so severe that it didn t register right away. Since then, I have had nagging pain in my scrotum/penis. I had an ultrasound and CAT scan at the time and everything looked normal. After a year of severe pain during ejaculation, a surgeon said he detected a very small inguinal hernia and unless we fixed that, we wouldn t know if it might be causing the pain. I let him do it. I still had the pain after that and got another opinion. The guy said he wouldn t treat me any further because there was no hard evidence of any issue. I gave up but for 5 years have had pain like a toothache and worse pain during intercourse. I was recently moving something heavy and during the move, I felt a tear in my penis. It was almost as if that was the original issue which maybe partially healed and when I lifted the object, re-tore. I finally went back to a doctor and got an MRI which didn t show anything. A urologist has looked at this case heavily. I even had him do an exploratory procedure while I was getting a vasectomy. He has found nothing. He believes like I do that there is a muscle tear. The problem is he didn t refer me on to another doctor. I have since gotten more aggressive to try to pinpoint the location and there are times when I can locate the center of the pain. It seems like its between the muscle fibers back in the part of the penis that is concealed by the sack. When I touch it, it feels severe and I almost pass out. My urologist believes that I am correct and there is a tear but he can t help me. After having no success with local doctors, I need to know if this is in fact a possibility. If it is, are there doctors that specialize in this? Is it likely that an injury such as this can be repaired?