No baseline beforehand over here.
However it was high on the list of what to look out for. If I remember correctly there was bit about it on the risks side of the consent form. I got a big lecture from the physio day 2 after surgery, a two page information sheet on what to/ not to do and another on the exercises. Both breast care nurses tried to give me a copy as well, but the physio had beat them to it.
I had some kind of scan thingy when I went for my first physio clinic appointment I think that was about two weeks post op and all was good. Two more physio sessions after that to sort out the cording, another lecture about the importance of exercise, exercise, exercise. It was mentioned again by the surgeon and BCN at my first couple of surg reviews as well.
So I would say I was well and truly informed.
xoxoxox