Thank you for your query.
It is quite likely that your daughter has hurt her knee joint and some ligament may have been affected. The best course would be to get her examined by an orthopedic surgeon and get a MRI
done. It is very difficult to say whether it is a part of the Osgood Schlatter syndrome or injury
to some other ligament.
I hope I have answered your query to your satisfaction.
Wishing your daughter an early recovery.
Rajiv K Khandelwal