Sorry to hear that, I wish you a speedy recovery.

This is a more light weight type game, but I do remember it being a reasonably mouse-only type game. I played it to completion and it was quite memorable.

http://store.steampowered.com/app/6830/Commandos_2_Men_of_Courage/

I also have this one, another mostly mouse-only war game. I've not completed this one.

http://store.steampowered.com/app/218090/Unity_of_Command_Stalingrad_Campaign/