Hello Katherine ! If you are not sure to start working normally again you could ask to @zoetis ! A veterinarian answers so it could be a very good thing for you to have an advice of an equestrian professional !
Not exactly but my bosses mare had similar problem. She was in an accident and after awhile was given the all clear to return to full normal work. But she wasn't 100% the best thing to do is not push it. She was light lunged to start with, walk and some trotting only on a lunge line. Then afterward we would cold hose the leg and put liniment on it. Once she 100% sound we worked on moving forward at the trot and doing some lunging over ground poles. Just take the time to make sure she is 100% before you even consider pushing her or riding her. It's going to take awhile to rebuild all the muscle she might have lost. Just take it slow and take care of the leg and you should be fine.