just watch she does no jumping in the first few days, to be safe a week. then dont let her run for another week, so on lead only, after two weeks, the main healing should have been done and you can relax! make sure the nurse shows you how to lift correctly if you need to.
she will have a painkiller after the op, but not be numb when awake. you should watch out for any swelling around the wound, discolouration and weeping. but dont worry, just be aware.
you can always ring the vets throughout the day so you know what stage she is at, i find it helps worried owners to be kept upto date, take care x