After Calvin de Haan left Monday’s game against the Red Wings following the second period with a lower-body injury, coach Jack Capuano expressed concern that this might not be a quick recovery for de Haan, who has been one of the Islanders’ most consistent defensemen this season.

“He’s a tough kid, so when he’s not able to go back in the game, it’s a concern for sure,” Capuano said. “We don’t know how long it will be.”

Should it become more than a short-term injury, the Islanders could decide to give Ryan Pulock his first NHL action. The 2013 first-round pick leads Bridgeport defensemen with 21 points, including six goals.

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Scott Mayfield, who has played three games with the Islanders this season, could get another recall. Adam Pelech remains out indefinitely, likely for the rest of the regular season, with an undisclosed injury.

Offense from defense

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Marek Zidlicky’s second-period goal was the 21st from an Islanders defenseman this season, not bad but a bit off last season’s pace. The Islanders received 34 goals from their defense lastg season, including 19 from the tandem of Nick Leddy and Johnny Boychuk.

“We’re behind the points percentage from our ‘D’ from last year, but we’re getting back up there,” Capuano said. “It can’t just be three-on-five in the offensive zone.”

The scoring is much more balanced from the Islanders’ defense this season. Boychuk, who had two assists Monday and has five points in six games since his return from a shoulder injury, leads the defensemen with five goals. Zidlicky, Leddy and Travis Hamonic have four each.