No argument about survival rate but:
Are injuries common?
About one in three will get a spinal facture, due to the force when the seat is ejected - the gravitational force is 14 to 16 times normal gravity and it might be applied at 200G per second. Bruising and abrasions are typical from the shock of the chute opening or the air blast. In the early days, there were cases where pilots would eject into very-high-speed air and it would whip their arms behind and break them, pop their shoulders out; same thing could happen to the legs.
As I said it’s a very dangerous maneuver!!!
That is true, and add high speed to the equation and you can perish from impact with the air.
Lost a friend that way. . .https://www.youtube.com/watch?v=HecyxhXDepU (Brian survived but his back-seater Dennis White, did not).