My Husband Had Open Retropubic Radical Prostatectomy 16 Mos Ago.

My husband had open retropubic radical prostatectomy 16 mos ago. Since then, he has had severe abdominal pain; he also has an asymetrical abdomen. He has been scoped, scanned, colonoscopied (diagnostic--not screening) and no one seems to have an answer to his high level of pain. Our pain clinic has prescribed narcotics, but that really doesn't help us determine the cause. We have been to pain doc, original surgeon (Alan Partin at Hopkins--he of Partin tables), general surgeon, as well as urologist and regular GI guy here in Pittsburgh. We don't know where to turn next. I despair because it is depressing for both of us. Husband is 71. Any suggestions as to where to turn next.?