From Kat O'Brien:

Brian Bruney has decided not to undergo surgery for now on his torn Lisfranc ligament. He said there was not unanimous consensus among the three doctors, and one said he did not think surgery would be a good move at all at this point. So he's going to try to rehab it using the boot. Given the timeframe of recovery, he would almost certainly miss the rest of the season if he had surgery. If he rehabs for six weeks and discovers he needs surgery, he could still have it and be back in time for spring training. So there's not much downside to doing it this way.