title: [Femoral head necrosis].
abstract: The epidemiology and pathohistogenesis of avascular femoral head necrosis has still not been clarified in detail. Because the course of the disease runs in stages and over a long time period nearly always culminates in the necessity for a total hip prosthesis, an exact radiological evaluation is of paramount importance for the treatment. There is a need for a common staging system to enable comparison of different therapy concepts and especially their long-term results. In this article the ARCO staging system is described in full detail, which includes all radiological modalities as well as histopathological alterations.
authors.affiliation: Röntgeninstitut am Schillerpark, Linz, Osterreich. kramer@ctmri.at
authors.forename: J
authors.initials: J
authors.lastname: Kramer
authors.forename: G
authors.initials: G
authors.lastname: Scheurecker
authors.forename: A
authors.initials: A
authors.lastname: Scheurecker
authors.forename: A
authors.initials: A
authors.lastname: Stöger
authors.forename: A
authors.initials: A
authors.lastname: Huber
authors.forename: S
authors.initials: S
authors.lastname: Hofmann
mesh_terms: D005271:Femur Head Necrosis / Q000175:diagnosis*; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods* / Q000639:trends*; D015207:Osteoarthritis, Hip / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed / Q000379:methods* / Q000639:trends*