It is recommended to wait to do any pruning on damaged plants until you can truly assess the damage that has been done. Allowing the plant to leaf out will give you a better idea of what needs to be removed.
The breakage of branches could be as minimal as a few twigs snapping off, to entire branches snapping and dividing the plant. You may also see leaves that have darkened and become droopy.
Use your fingernail or some garden shears to scratch a bit of the bark off of one of your damaged branches. If the plant tissue below is green; your plant is alive and just needs time to recover. If it's brown all the way through; it could mean the entire plant is in rough shape.
Use a blade sharpener, or some sandpaper to remove any grit or rust that may have built up over the winter. Follow along the edge of the blade to sharpen them nicely.
When pruning for shape or removing damaged growth you will only want to remove one-third of the branch per year. This might be frustrating if there's severe damage, however, it is the best way for your plant to recover.
Late frosts can severely damage tender flower buds on your plants. The buds will turn brown or black and are easy to identify. These buds likely will not bloom, but if they do the flowers will be distorted.
While you are pruning, make sure you are taking a few steps back from the plant every now and again to make sure you aren’t damaging the shape of the shrub.