An MRI. That is what she needs. You really have no idea is there is permanent damage or not without one.
Just get her in to a sports medicine clinic and they will run an MRI and tell you what the real damage is.
As a side note, I have a bum knee and a surgically repaired eye from my days in Kung Fu. While my visions recovered my knee makes an aweful creaking sound and hurts when a big storm comes in. But I don't regret doing it. The lessons I learned there will stick with me for life.
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