Thunderhead Broadhead placement

We harvested this bear on May 8 however it had been bladed with a arrow on May 2 . WE had found the arrow and when bear limpted in to stand hunter surmised that this was the same bear.  The 100 Gr Thunderhead broadhead tip is sticking out of the other side of the bone. This was just above the elbow of the bear. We have never recovered something like this before but have harvested bear which have had a the X of an arrow in many places .