I broke my finger when I was in college, and had to find a way to do things for six weeks without grabbing the bar. So here you go:
Front Squats still work. She can hold the bar with a cross grip, or with her hands straight out. I'd avoid back squats since bailing on them could be dangerous, even with a wide grip. If you have a Safety Squat bar, she can do them, too, as well as doing some hip belt squats (or the Ironmind Squat belt).
Leg presses if you can, weighted vest jumping/ other weighted vest movements, sprints are good, some machines are okay to use at times like this.
As for upper body, machines are all I can really think of, depending on the severity of the break and her limitations.