I am sorry to hear that! I wish for your full recovery!
But to answer your question, of course you still can. But be very very careful and don't stress yourself too much.
I know a broker that could help you big time. It is Alpari, and they would really assist you in every step.
Goodluck to you, my friend!
DO NOT BE CONFUSED MAN. YOUR QUESTION SHOULD HAVE START WITH HOW TO GET SOLUTION TO YOUR STROKE. HERE IS THE ANSWER, GET A THERAPY MACHINE AND A COMPETENT THERAPIST TO REVERSE YOUR CASE. NOW, TRADING WITH ONE HAND IS YOUR CHOICE AS FAR AS YOU CAN ACHIEVE YOUR OBJECTIVES TO REACH YOUR GOAL. GOOD LUCK!!!