Seems like bank fishing ought to be a decent option, just have to work on your roll cast and maybe a bow n arrow style cast. I would try those two techniques with a shorter rod and at the same time might just work on trying to "high stick" from the edges, thought high sticking would likely be easier with a longer rod or even (I have not used one, but by nature of their design) a Tenkara rod.
Even when I can wade, I try to avoid it as much as possible, just to keep from spooking the fish as much. Sorry for your injury, and pray that ya heal up fast.
"Fly-fishing has many attributes, but none more pleasing than it's ability to liberate the young boy that still hides within me and to let that boy live again without embarrassment or regret, sorrow or anguish." Harry Middleton