Accidents can happen.
You can hit for an hour without your middle finger just fine, and then ONE stroke, you forget and use your middle finger, and instant reinjury.
But you know that. Any body part that is not 100% is your weak point.
Just what is tennis worth to you?
Nobody can guarantee your tennis future. It might be fine, it might not. You can only control the NOW part of life.
As in life, goes tennis.