The herniated disc in Letang's neck is not the result of any one hit or event. It is instead the "accumulation of events over time," per head coach Mike Sullivan.
Letang had an MRI in February and has been held out of the lineup ever since - his last game was Feb. 21. At that point the Pens medical staff tried to rehab the injury without surgery in the hopes that Letang would be able to return to the lineup for the playoffs.
"Our medical staff thought it made the most sense to take a conservative approach without surgery," Sullivan said. "They were fairly confident that Kris could recover from this in time for the playoffs. We were all very confident that would be the case."
"We took a break," Letang said. "We thought the best treatment for it was to rest and try to get better and be ready for playoffs."
So Letang began rehabbing. He even reached the point where he started skating again. His next step was to rejoin the Pens for non-contact practice.
However, over the past week Letang experienced symptoms and his recovery plateaued.
"He was making significant progress. He was skating. He was on the ice," Sullivan said. "Within the last week he was symptomatic, which spurred more inquiry by our medical staff. That's how it evolved."
Letang underwent another MRI. And this time the team changed course of action and decided that surgery would be the best route to recovery.
"We asked for another MRI to make sure everything was good," Letang said. "It plateaued and I really needed surgery. That's where it stands at."
"The reality was that we were all really hopeful that we would have 'Tanger' for Game 1 of the playoffs. Obviously it didn't occur the way we wanted it to," Sullivan said. "But that's the nature of some of these injuries at this time."
IMPORTANT NOTE: Letang's herniated disc injury, while an accumulation, is not correlated to previous injuries he has suffered this season.