I am scheduled for surgery in December.

I am scheduled for surgery in December. I know my case is mild compared to many but I’ve dealt with discomfort and pain, increasingly over the past couple years. The military wanted to fix for me like 20yrs ago but I declined back then. I feel ready now. How realistic is it that I will be able to go back to work January 6th if surgery is Dec 22nd? I do have to get around quite a bit. I’m a middle school dean.