In a surprise turnaround that could provide sports medicine journals with material, Kevin Klein’s fractured right thumb is apparently healing at warp speed.

The defenseman, who was injured late in Tuesday’s loss to the Devils on a check from Reid Boucher, did not play Thursday against the Wild, but the timetable described Wednesday as “out indefinitely” has vastly improved.

In full uniform, Klein joined the morning skate at the Garden on Thursday, wearing a splint and shooting pucks without much discomfort.

“We didn’t know how long it was going to be and he obviously responded very well to the doctor’s news, and with the splint, he was able to handle the puck,” said Vigneault, who reiterated that the injury was indeed a fracture. “He’s going to see Dr. Miyagi again this afternoon,” he added, rubbing his hands together gleefully after the reference to “The Karate Kid.” Klein was not made available to the press after the skate.

“It’s healing a lot better than what everybody had anticipated,” Vigneault said, but did not specify a date for Klein’s return.

Nash out again

Rick Nash, who is recovering from a bone bruise in his left leg, missed his fourth game and did not skate Thursday. He was on the ice for the previous two days, and the team said it was a planned day of rest. “He’s just doing off-ice [training] and hopefully tomorrow [Friday] he’ll be close to skating with the team,” Vigneault said.

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Megna replaces Glass

Tanner Glass, who had played 25 straight games since his recall from Hartford, was a healthy scratch. Jayson Megna stepped in on the fourth line. “We’re playing against a team that’s got a lot of speed and Megna brings us speed and skill, so we thought it was a better fit,” Vigneault said.