Recently I was playing through as normal, when suddenly the floats showed an Ailing Wolf I was fighting got a critical hit, and cripled my leg. I figured it was simply a nice way of saying my character got scarred and didn't bother to check out if it changed anything. A bit later I got mauled by a Ruffian and had to start again (I was doing an Ironman run with Dwarves using the Earth Elementalist auto-levelling scheme). Then I started wondering what a cripled leg actually meant, but not having the character anymore there's no way I can check. Does anyone know what it means when your character's leg is cripled? Because I wonder whether it is simply a penality to beauty, speed or dexterity.
In the vein of Fallout I believe such an injury impacts dexterity and probably available action points, although I'm not sure where this is explicitly stated.
I wonder whether it depends on targeted leg shots. I'll have to try that out. Never seen a crippled leg before, sadly.
I'm assuming by "cripled" leg you mean a leg led by The Crips, a gang founded in Los Angles, CA. I have no real recommendations for that one. Make sure the leg doesn't shiv you in the kidneys or anything.