Note: Because "Christine" is a common name in media, this report uses the most prominent archetype of this character—most closely mirroring Christine Daaé (The Phantom of the Opera) or characters from similar gothic/medical dramas who experience leg-related trauma or paralysis. If you are referring to a specific indie book, RPG character, or fanfiction, the psychological and narrative frameworks below will still perfectly apply.
"Christine's Story" on the Benzodiazepine Information Coalition details a woman's battle with withdrawal and her efforts to encourage others during her struggle.
If "Christine My Sexy Legs Tube" refers to adult content, you might find it on platforms that host such material. Be sure to follow the guidelines and age restrictions of any site you visit.