What to do with my Boxwoods?

Last summer i transplanted several boxwood's. most of them look like they were shocked and had turned dry and brown. decided to leave them alone over the winter but now that spring is approaching, i would like them to regain some of their 'green-ness'. I have broken a twig of each bush and they are all green inside which has given me hope that they aren't dead. Should i get a hedge trimmer and trim them now to get the dried brown foliage off?? Do i wait until the weather warms more...Is all hope lost?? I live in Louisville KY....