title: Patellofemoral instability.
authors.forename: Elizabeth A
authors.initials: EA
authors.lastname: Arendt
authors.forename: David
authors.initials: D
authors.lastname: Dejour
authors.forename: Jack
authors.initials: J
authors.lastname: Farr
mesh_terms: D006801:Humans; D007593:Joint Instability / Q000175:diagnosis* / Q000628:therapy*; D031222:Patellar Dislocation / Q000175:diagnosis / Q000628:therapy; D057071:Patellofemoral Joint / Q000503:physiopathology*