Dave, sorry to hear of your misfortune. Our son, Bryan, had a badly comminuted fibula fracture several years ago, and Dr. Gary Fetzer, orthopedics and sports medicine at Tria in the cities put him back together. The next year, he was able to complete an Iron Man. He has our recommendation.
I wonder if that 'metallic ping' could have been failure of the metal layer in your board under stress? Hope this heals quickly. Ken