My Japanese isn't good enough. I'd add some punctuation:
"It's the first one (I'm aware of recently) with injuries this severe, where everything worked out well".
Then try breaking it into pieces maybe:
"Everything worked out well" ~ 全部大丈夫だ
"It's the first one" ~ しはつ
"I'm aware of" - implies there might be others I don't know about
"recently" - 近頃