Newcastle defeated Bournemouth on penalties in the FA Cup third round tie after the scores had finished 3-3 after extra-time.
However a blow for Newcastle was Livramento being forced off during normal time.
"I am absolutely devastated for him because he has worked so hard to come back in terms of physical shape. I am not too sure on other details other than that. But he is obviously going to be out for a period of time," said Howe afterwards.
On if they must now respond in the transfer market, Howe was adamant.
He said: "Well, I think we need players to play games.
"We need enough cover. Today, unfortunately, we put a couple of the players at risk just with extra time.
"That is every player on the pitch the risk gets higher in extra time the more you play. We'd love to have enough bodies to lessen that risk but at the moment we don't have the options.
"Yeah I think we have to make the right decisions in terms of detailed discussions to make sure we come to the right conclusion."