Pruning Clematis

My clematis (pictured below:  it's the little stick in the middle) took a beating by the piles of snow around it this winter.  Fortunately, it's a clematis paniculata, the type that grows furiously and blooms on new wood, so that it can be cut back hard (almost to the ground) each year.  Other clematis bloom on old wood, so pruning should be more selective.