title: A biomechanical approach to interpreting magnetic resonance imaging of knee injuries.
abstract: This article discusses common injury mechanisms and the subsequent constellation of magnetic resonance (MR) imaging findings in the knee following trauma in the context of instability, as distinguished by the degree of knee flexion and tibial rotation at the time of initial injury, in addition to the direction and magnitude of the responsible force vectors. Using 3-dimensional imaging, common injury mechanisms are illustrated and correlated with MR imaging findings of the resulting osteochondral, ligamentous, meniscal, and musculotendinous lesions. The most common classification and grading systems for these individual lesions and their subsequent treatment implications are discussed.
authors.affiliation: Department of Musculoskeletal Radiology, University of Wisconsin School of Medicine and Public Health, 600 Highland Avenue, Madison, WI 53792, USA. Electronic address: sheehan.scott.e@gmail.com.
authors.forename: Scott E
authors.initials: SE
authors.lastname: Sheehan
authors.affiliation: Department of Emergency Radiology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA.
authors.forename: Bharti
authors.initials: B
authors.lastname: Khurana
authors.affiliation: Department of Musculoskeletal Radiology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA.
authors.forename: Glenn
authors.initials: G
authors.lastname: Gaviola
authors.affiliation: Department of Musculoskeletal Radiology, University of Wisconsin School of Medicine and Public Health, 600 Highland Avenue, Madison, WI 53792, USA.
authors.forename: Kirkland W
authors.initials: KW
authors.lastname: Davis
mesh_terms: D019245:Compressive Strength; D006801:Humans; D007718:Knee Injuries / Q000145:classification / Q000473:pathology* / Q000503:physiopathology*; D007719:Knee Joint / Q000473:pathology* / Q000503:physiopathology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008953:Models, Anatomic; D008954:Models, Biological; D016059:Range of Motion, Articular; D013314:Stress, Mechanical; D015599:Trauma Severity Indices
keywords: Biomechanics; Imaging; Injury; Instability; Knee; MR imaging; Mechanism