If a character doesn't die, it seems like any other physical injuries are irrelevant. Just rip a piece of clothing and tie it up, right? :P There are so many problems with this notion. *very long eyeroll* To me, there are many alternatives I'd rather have explored in stories. (Particularly as dying is the
easiest road for a character. But more on that another day.)
Now, if you have a character that is physically and mentally able and is heavily independent if they should suffer an injury that leaves them unable to care for themselves or forces them to accept help from others, that can be a difficult blow to deal with. It would explore frustration and despair in your character. It will force them to engage different parts of their personality and enable you to recreate a new reality for them.
If you carry this idea a step further, if you disable a character that was to be relied on, take this chance to see how the change in them can affect the characters around them. If they are unable to think or act for themselves, how is this changing and influencing your other characters? Just a thought.
Injuries, usually of a physical kind, are a means of knocking down pride and humbling a character. Use that time to develop your character's inner strength. We as writers might HATE it, but as readers, we love it!
Mental injuries are also a way of making a relatable character. We don't want to leave a character in despair but allow this member of your plot to create a chance for another character to share and support the burden. It makes both characters deeper and better sculpted.
Here are a few examples:
Pollyanna experiences a wee bit of depression after her injury. But, this allowed the members of the town to step in and show Pollyanna what kind of positive influence she'd had on them. Using this storyline, enabled other characters to strive to fill the gap making the entire situation complete for many characters.
Hiccup, in
How to Train Your Dragon lost his leg. That's a HUGE life adjustment and can be fairly scary. But he didn't need to fear, Toothless and his entire village was there for him.
When
Ivanhoe was lying wounded, in
Ivanhoe, not only was the man forced to stay out of battle and endure the agony of watching his countryman fight for what he believed in but the circumstances led to an impassioned conversation between Ivanhoe and Rebecca. :) In short, I don't think he made a very good patient but it made for an excellent scene!
Hope this babble was in some way understandable.
Yours truly,
Cordy