definitely a traumatic injury.
he was climbing, and pulling an overhanging move (read: intense spike in blood pressure). felt a pop, jaw locked up, intense pain- thought he was having a heart attack, but was only 28 at the time and who has that at 28.
stopped climbing for the day, laid low and smoked a LOT of pot over the next 3 days (not abnormal at the time). woke up in the morning 3.5 days later, thought he was going to die. went to hospital. explained the feelings to a doctor, they did an ekg or CT (one of those), and within 2 hours he was being wheeled back to surgery. (included the note about the pot because the doctor recognized that his decreased blood pressure from smoking that much probably saved his life)
12.5 hours open heart surgery, packed in ice twice. finally closed him up because it was just too long under the knife, fully expected him to require another surgery in 6 mo. miraculously healed the rest of the way (as indicated by all known tests) over that time. heart surgeon at duke has never seen it happen before.
...yeah, you could say it was traumatic.