Hopefully one of the PT ladies and/or someone with similar injuries will pipe in -- but, taking into account the fact that I don't fall into either category! -- it sounds like you would be a good candidate for pedals with lots of float, like Speedplays.
Good luck with your recovery!
ETA: it might also help to adjust your cleats differently, if they aren't already -- that is, adjust the cleat for your "normal" leg so it puts your foot in a neutral position, and adjust the cleat on your "splayed" foot such that it allows a comfortable angle. Again though, the PT folks may say that's a terrible idea that will cause other kinds of imbalances -- I just don't know.
OH! That makes me wonder -- have you had a bike fitting done by a PT? That might be really helpful...



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