Hey Connie, my knee injury was a shattered tibial plateau. It was in about 6 pieces...My knee collapsed two inches. Also fractured the tibia. They jacked up my knee, put in a bunch of bone grafts (5 I think) then two titanium plates and 10 screws. My shin has sort of a lump on it if you look close (sort of like a horse with bucked shins) ut my knee never bothers me at all any more.....and if your friend is thin, that helps a lot....wish I was......Tell your friend it will all get better. My doctor actually let me ride as long as I had the brace one. Luckily the giant hinge was on the outside............mb