There is normally a sort of retaining bracket (shield) that keep the cables on front panel from detaching from the board. If that shield was missing from your phone (could have happened if you've had it repaired/opened before) there could potentially be logic board damage.
If the cables are still connected to the logic board, it most likely will be a straight forward screen replacement. The "full assembly" is what you would want to get.
If you are unsure of how to do the repair, there may be a local Experimac store that could help you. :)