A teenager from Kansas accidentally plunged a 10-inch knife into his skull — and managed to survive — in what is being described by his family as “a miracle.”

“It could not have had a pound more force on it and him survive that event,” explained Dr. Koji Ebersole in a video released Monday by the University of Kansas Health System, which treated the teen and documented his recovery.

“I don’t think he would have survived it,” the doctor said.

Eli Gregg, 15, was playing outside of his home in Redfield — roughly 90 miles south of Kansas City — when his mother, Jimmy Russell, heard him shout in pain last Thursday evening. It wasn’t until he came to the door and his mom saw the butt end of the knife jutting out from Eli’s face that she found out what happened.

“It looked pretty grim,” Russell remembered, speaking to KU’s Medical News Network.

“It was scary…There was blood, and he had a piece of metal in his face.”

Eli told MNN that he tried telling his mother what happened, but was in shock.

“I was just saying, ‘Mom…Mom…’ and when she actually looked at me she just gasped,” the teen said.

Asked about how the injury went down, he said: “I can’t really explain it, it kinda happened very quickly.”

Doctors told Russell that there was a possibility that Eli could suffer a stroke, or lose sight in one eye.

“It all depended on how they were able to get it out,” his mom said.

Eli spent several hours in surgery on Friday morning as doctors worked to remove the knife. X-ray photos sent to The Post by Kansas Health officials showed just how close the blade came to killing him.

“If it were so much as moved, just the slightest…it could have been the end of me,” Eli said.

“We [had a] knife penetrating through the front of the face and extending through the skull — to the underside of the brain — with important concern for injury to the carotid artery, the major artery supplying the brain,” recounted Ebersole.  “The sharp side of the blade [was] essentially on that vessel, right as its entering the brain. If we get a cut there, he’s going to have an overt bleeding that I don’t think [he’d] be able to survive. So we had to come up with a number of strategies to protect that.”

Dr. Jeremy Peterson, one of the many surgeons that assisted with Eli’s operation, described the teen as “a trooper.”

“He went the whole time, until we got ready for the procedure, with this knife sticking out — fairly awake,” Peterson said.

The boy — who can be seen in before-and-after photos provided by his family — suffered “some bleeding” from the level of the skin, but doctors expect him to make a full recovery.

“The blood vessel looks like it’s perfectly intact, the brain is functioning perfectly, he had the breathing tube removed, he’s wide awake — talking to us,” Ebersole said. “I think he’s gonna heal just fine.”

Eli’s mother added, “It’s almost a miracle…It is really, really amazing.”

According to Russell, the boy “says he is going to stay away from sharp objects.”