Give hospitals access to GeneTek Bio Printers. Essentially, very small scale cloning devices able to replace basic limbs that ALMOST match your skin tone. It's expensive, but possible to just get a natural organic limb back with little issue as cloning has become so quick and effective these days that doing it on a smaller scale only makes sense business wise. Get your arm blown off in a mining accident? Get right back to work in an hour with arm made of your own DNA! (Warning: Melanin content will likely need time to adjust, so it may appear slightly off-color…)
Don't got the cash for the hospitals? Let's find a ripperdoc who might have a cooler full of spare arms and legs that they can staple on in a filthy back-alley somewhere and pump full of drugs to get it mostly-working. Please keep in mind as this leg isn't yours, it probably isn't going to even be the same color as you, and anyone who sees you is going to realize that you're in fact not supporting your natural leg anymore...
WHY THIS IS GOOD FOR THE GAME: Make mutilating someone easier and more effective to do, while also making it easier to fix. The 'all chrome' solution is tedious and sometimes prohibitively expensive compared to just killing yourself which is stupid, so why not bridge the gap? The technology in the game is already capable of re-growing people, have Gene-tek just release a smaller version specifically in partnership with hospitals!
Allowing you to send a message that someone won't forget physically is also fantastic! Tell your drug pusher that next time you won't tolerate a third fuckup after you've cut off both of their legs while shoving enough money in their pockets to get two new printed legs will remind them every time they take off their pants to take a piss!
Give smaller-time ripperdocs more to do and give them reason to carry around hordes of body parts like a psychopath!
Don't limit it to just arms and legs! Hands, eyes, ears, all of it, and thematically, -any- part of you can be printed, even organs! Maybe you need to go to the hospital and RP getting a new lung!! Maybe your drug abuse has you on your third heart this sleeve already!