If you can pick the stitches up on the needles again, you can bind off again. You might want to watch the video on this site to make sure you're doing it right. If you had already cut the yarn tail off, you might need to pull out a couple of rows and bind off earlier than you did originally, to make sure you have enough yarn to get through it.
Mommy to two wonderful girls
"I don't have to conform to the vagaries of time and space, I'm a loony!" -Campbell Bain (David Tennant) 'Takin' Over the Asylum'
OTN: Cabled Sweater
, arm warmers, kids' clothes