DD had a knee injury in BB a few years back we were sent for x-rays and to see a specialist. After the x-rays we were in a room and we heard a doctor and tech talking outside the room and they were talking about a knee and how messed up it was an all the surgery it was going to take to repair the damage. DD and I jumped to conclusion thinking they were talking about her and she and I was white as a sheet.
Turned out they were talking about another patient and daughter had a deep knee bruise and was out for 2 weeks. She was lucky!
Good luck to your daughter hope she gets better soon.