Imaging of patellofemoral instability

Patellofemoral 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 deformitie...

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Bibliographic Details
Published inRadiologe Vol. 52; no. 11; p. 1003
Main Authors Waldt, S, Rummeny, E J
Format Journal Article
LanguageGerman
Published Germany 01.11.2012
Subjects
Humans
Image Enhancement - methods
Joint Instability - diagnosis
Magnetic Resonance Imaging - methods
Patellofemoral Joint - diagnostic imaging
Patellofemoral Joint - pathology
Tomography, X-Ray Computed - methods
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Summary:Patellofemoral 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.
ISSN:1432-2102
DOI:10.1007/s00117-012-2367-3