drayegon, a lot of people on here can work (I can), but I've seen a lot who are either out of work or else can't work because of a medical problem.
Sorry to see that you've had such an awful injury.
I'm not in any way (at all) comparing this to your back injury; but I can only imagine how difficult it must be for you. I've had a really bad leg injury since Christmas, and although it continues to get better, just over the last two days I've been in a real "sick-of-it" mood because having it has run on so long. For a couple of days I got in such a slump I did nothing but foolish stuff online (and on here); but that was a temporary slump. I can work because I write (elsewhere, besides the "hobby writing" I do on here). I can only imagine how difficult it must be to live with an injury that's so much more serious than just a leg thing.
There are many people on here, though, who have really serious conditions that prevent them from being able to work. A lot of others people can, of course, work.
If you feel well enough (and out of pain enough) to write some Hubs, look into the kind of Hubs that are most likely to earn you some money. You may already have seen that there are Hubs that offer people information on earning money online, or writing Hubs or other articles. There are also affiliate programs through which you might be able to get some extra income.
Writing a Hub about the treatment of a broken back, or one about the challenges of living with one (or living on a limited income because of it) could offer readers information based on your first-hand experience. Or, writing about something else you know about (and can research) might be good.
If you were to go to HubPages forum where you could say how much you're able to do, or not do, online; maybe someone would know some sites where you could find some kind of part-time income that would work for you, in your situation. I know there are different kinds of broken backs, with some far more limiting than others may be.