Martin suffered a non-displaced fracture in his forearm that will not require surgery, while it is unclear if Pandolfo's injured shoulder needs an operation.
"There's no question what they bring to the lineup," Devils general manager Lou Lamoriello said. "Paul, certainly, what he brings to defense, and Jay, what he brings to penalty killing and leadership and 5-on-5 defensive situations. But you just cannot put it as anything other than it's a part of the game."
Martin has led the New Jersey defenders in scoring the past two campaigns. The 28-year-old has two assists in nine games thus far after recording five goals and 28 helpers a season ago.
The 34-year-old Pandolfo, who has spent his entire 13-year career with the Devils, has tallied a goal and an assist in nine games this year.
In related news, the Devils recalled defenseman Cory Murphy from their AHL affiliate in Lowell on Monday.