Newcastle will lose top goalscorer Ba to African Cup of Nations duty next month, after Senegal confirmed the forward's call-up on Tuesday. As a result, the Magpies will have to play several games without the man who has become their talisman this season.
Pardew had been working on the £6 million capture of Sochaux striker Maiga until Newcastle pulled the plug due to a failed medical. He insists that decision was not taken to force Sochaux to lower their price, claiming that only a defender will likely arrive in January.
"We accepted when we signed [Demba] that the African Cup of Nations is coming up. It will be a loss because he's in great form," Pardew said.
"I don't think we'll be bringing in a striker in this window after the collapse of Maiga, which we put a lot of work into. We'll go with what we've got.
"It wasn't a strategy to lower the price, it was just unfortunate - unfortunate for the player too. He was more disappointed than anybody else.
"We'll work hard between now and the summer to locate another striker. You have to pay over the odds in this window. We won't be doing that in terms of a striker. We're looking maybe at a defender."