Hi On Saturday My Daughter Fell On Glass She Suffered

Hi on Saturday my daughter fell on glass she suffered a deep gash to her knee A&E wrote this: c shaped lac 6cm full thickness and gaping over right lower patella (although it was slightly above) cleaned with NS, LA with 9ml 1% lidocaine Closed with 6x3/0 ethilon needs ROS in 14/7 in uk (due back in university) patient to arrange.
I asked the doctor if she had any stitches inside? He said no and only 6 stitches to sew up a 6 cm hole, it looks like a rolled and tied joint of meat. I have no aftercare information. She needs crutches as she can't bend it or put weight on it. Can you give me any advice please? Gaynor