where are they? do you mean on the thoracic spine?
the doctor presumably mentioned what impact said spurs have.
most of the SS exercises (e.g squat, DL , bench press) hold the spine totally rigid w/o any intervertebral movement once you set up. So if she can achieve the correct position and that doesn't cause discomfort then those exercises prob aren't going to aggravate anything. Even things like the press and power clean don't move the spine much compared to say throwing a ball or swinging a golf club.
if, otoh, getting into the right position causes one of the bone growths to pinch a nerve or dig into something else that seems more complicated.
clearly you should get expert advice when it comes to bone on nerve action and bone on bone action, but try to find a sport doc of some sort. normal doctors seem to be very conservative on activity levels and their idea of "exercise" for a woman that age will likely involve 30 minute walks and possibly soup cans.
is she going to get them removed?
i am not a doctor or lawyer or anyone who can legally give advice about anything.