I’ll have to keep that in mind if the orthopedist says I need rotator cuff surgery. I find out next month, the day after my wife has back surgery. I tell you, this getting old business isn’t for the fainthearted.
I would say your chances of having trouble with fluoroquinolones has to do with if the tendons have been damaged already. I find that generally when I have trouble with something it is where a weakness already existed and what ever it is just decided to take advantage of it.
All I can tell you about rotator cuff surgery is do your PT. Don't slack. Yeah, it will hurt. But I went from not being able to raise my arm beyond chest height to over my head to touch my ear on the opposite side of my head.
Any time the shoulder aches I do my exercises for about a week and they go away. I should do them all the time but what can I say. I am human and fallible.