1207 Sorry to hear about your accident, sounds bloody painful!
I have nothing useful to add other than the fact that you should definitely pay for a leg room seat (though there may be impairment issues given your condition on an exit row!) - I'm 6'3 and Monarch and me don't go well with their 28-29" seat pitch (sad because I prefer them to the better proportioned EZY & Jet2). Just thinking about your general movement that may be awkward.
If it's a A321 I think it's 11A or F that are the best seats, but check seat guru by all means.