I had wrist surgery 2 years ago. I continued to ride the trainer, basically just sitting up pedaling. You can do extensions, curls, and leg press in the gym. The trainer and aerobars sounds like a good idea. Let me just add this. One thing I had to be carefully was putting too much strain on my wrist so I tried to avoid anything that caused stress or twisting on my wrist. Sucks about the surgery but don't let the fitness go away. Heal up quick!