Quote Originally Posted by Wahine View Post
The MOI (mechanism of injury) is not suggestive of a hernia. It is more likely a subluxation of a costochondral joint, or costosternal joint.

Yeah, that was my other idea.

Just kidding, honestly thanks Wahine, what you say makes sense. I do remember, way back when, reading about the rib itself doing what you said and thinking it might be something like that. Next time it does it, I will pay more attention to how hard it is. I do think it's fairly hard though.

I am off to read about "subluxation of a costochondral joint".