title: [Knee pain: choosing the right imaging].
abstract: Gonalgia is a frequent reason for consultation of a primary care physician. The road leading to diagnosis is mainly clinical. A detailed medical history and physical examination are capital for establishing diagnostic hypotheses and choosing the most appropriate imaging test. Initially, a simple X-ray of the knee joint is the most common exam, even though it is not always needed, especially after a minor trauma. MRI and CT-scan allow a more detailed examination of the structures; however, they should only be ordered to answer a specific question. Most of the time, echography is reserved to extra-articular pathologies and for guiding an articular tap.
authors.affiliation: Service de medecine de premier recours HUG, 1211 Geneve. ana.potric@hcuge.ch
authors.forename: A
authors.initials: A
authors.lastname: Potric
authors.forename: T
authors.initials: T
authors.lastname: Mach
authors.forename: A C
authors.initials: AC
authors.lastname: Pereira Miozzari
mesh_terms: D018771:Arthralgia / Q000209:etiology*; D003657:Decision Making; D003952:Diagnostic Imaging; D006801:Humans; D007719:Knee Joint / Q000473:pathology*