Any fellow mail carriers in here?

40 y.o male . Scheduled for LTHR (anterior) on January 19th.. I’m told I’m on the younger side for this procedure however I suffered a hip injury a few years ago that never healed and here I am . The daily pain of doing the job I have as a mail carrier and all the walking seems to be getting worse month over month. Obviously I have a very active job and consider myself fairly fit . I’m wondering how much time should I expect to be off before I can return to my full work duties and also would it be a good idea to take some time off before the surgery . Currently I’m scheduled to work up until the Saturday before. I’ve been having some swelling and pain in my left knee which was told for it overcompensating. This group is great with so much good info . Thanks !