My close friend had one, and he said it's the worst pain you can imagine...constant agonizing torture. I visited him, he's a grown man and he was almost in tears, he just couldn't take it. What I didn't understand was that they only gave him two Vicodin per day...and they only last 2-4 hours each. You would think that with the extreme pain it causes, they would put you on Oxycontin or MS-contin, you know, the real heavy stuff. Vicodin even at 10mg isn't jack squat compared to those. I felt so bad for him I wanted to call his doctor and cuss him out.