bigdog

I had this happen with a large, potted Musa itinerans. The pseudostem bent while transporting it. I made a splint for it, and it healed fine. It's a crap shoot though, because the "shaft" where the leaves emerge from could have been closed up by the injury, preventing the leaf from emerging. Eventually, it will find its way out of the side of the pseudostem.

I agree with Jarred, all that being said. If they are broken, just leave them alone. As long as they are still attached, it is energy for the plant. If they are just slightly bent, you may consider a makeshift splint for it with a bamboo stake.