• Der Radiologe · Nov 2012

    [Imaging of patellofemoral instability].

    • S Waldt and E J Rummeny.
    • Institut für diagnostische und interventionelle Radiologie, Klinikum rechts der Isar, Technische Universität München, Deutschland. simone.waldt@tum.de
    • Radiologe. 2012 Nov 1; 52 (11): 1003-11.

    AbstractPatellofemoral instability remains a diagnostic and therapeutic challenge due to its multifactorial genesis. The purpose of imaging is to systematically analyze predisposing factors, such as trochlear dysplasia, patella alta, tibial tuberosity-trochlear groove (TT-TG) distance, rotational deformities of the lower limb and patellar tilt. In order to evaluate anatomical abnormalities with a sufficient diagnostic accuracy, standardized measurement methods and implementation of various imaging modalities are necessary.Diagnosis of acute and often overlooked lateral patellar dislocation can be established with magnetic resonance imaging (MRI) because of its characteristic patterns of injury. Damage to the medial patellofemoral ligament (MPFL) has a significance just as high as the predisposing risk factors in relation to the cause of chronic instability.

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