title: Patellar Instability.
authors.affiliation: Department of Orthopedics, Alpert Medical School of Brown University, Providence, Rhode Island.
authors.forename: Steven F
authors.initials: SF
authors.lastname: DeFroda
authors.affiliation: Department of Orthopedics, Alpert Medical School of Brown University, Providence, Rhode Island.
authors.forename: Jonathan D
authors.initials: JD
authors.lastname: Hodax
authors.affiliation: Division of Pediatric Orthopedic Surgery, Department of Orthopedics, Alpert Medical School of Brown University, Providence, Rhode Island.
authors.forename: Aristides I
authors.initials: AI
authors.lastname: Cruz
mesh_terms: D000293:Adolescent; D006801:Humans; D007593:Joint Instability / Q000000981:diagnostic imaging* / Q000209:etiology / Q000628:therapy; D008279:Magnetic Resonance Imaging; D008297:Male; D010329:Patella / Q000293:injuries*; D012916:Soccer / Q000293:injuries*
keywords: MPFL; dislocation; instability; patella