title: Imaging in patellofemoral instability: an abnormality-based approach.
abstract: Imaging in patellofemoral instability confirms the diagnosis and guides treatment. It is essential to the accurate diagnosis of the root causes and their adequate treatment. A structured approach must be used to identify the factors causing instability, and more than 1 imaging modality may provide similar information. This article revises the acute findings and the abnormalities present in the acute and the chronic settings.
authors.affiliation: Instituto de Ortopedia e Traumatologia de Passo Fundo, Passo Fundo RS Brazil.
authors.forename: Paulo Renato Fernandes
authors.initials: PR
authors.lastname: Saggin
authors.forename: Jose Idílio
authors.initials: JI
authors.lastname: Saggin
authors.forename: David
authors.initials: D
authors.lastname: Dejour
mesh_terms: D001848:Bone Diseases, Developmental / Q000175:diagnosis; D006801:Humans; D007593:Joint Instability / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D010329:Patella / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000473:pathology; D031222:Patellar Dislocation / Q000175:diagnosis; D057071:Patellofemoral Joint / Q000000981:diagnostic imaging* / Q000473:pathology*; D014057:Tomography, X-Ray Computed