title: Understanding carpal instability: a radiographic perspective.
abstract: The wrist is disposed to a variety of instability patterns owing to its complex anatomical and biomechanical properties. Various classification schemes have been proposed to describe the different patterns of carpal instability, of which the Mayo classification is the most commonly used. Understanding the concepts and pertinent terminology of this classification scheme is important for the correct interpretation of images and optimal communication with referring physicians. Standard wrist radiographs are the first line of imaging in carpal instability. Additional information may be obtained with the use of stress radiographs and other imaging modalities.
authors.affiliation: Advanced Imaging Center, Palmdale, CA, USA. khalatbarik@live.com.
authors.forename: Kimia Khalatbari
authors.initials: KK
authors.lastname: Kani
authors.affiliation: University of WA, Seattle, WA, USA.
authors.forename: Hyojeong
authors.initials: H
authors.lastname: Mulcahy
authors.affiliation: University of WA, Seattle, WA, USA.
authors.forename: Felix S
authors.initials: FS
authors.lastname: Chew
mesh_terms: D002348:Carpal Bones / Q000000981:diagnostic imaging*; D006801:Humans; D007593:Joint Instability / Q000000981:diagnostic imaging*; D011859:Radiography; D014955:Wrist Joint / Q000000981:diagnostic imaging* / Q000503:physiopathology
keywords: Adaptive carpus; Axial instability; Carpal instability; Lunotriquetral instability; Mayo classification; Scapholunate instability