Kinematic magnetic resonance imaging of the effect of bracing on patellar position : qualitative assessment using an extremity magnetic resonance system

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Deutscher übersetzter Titel:Kinematische Magnetresonanzuntersuchung der Auswirkungen einer Bandagierung auf die Patellaposition : qualitative Beurteilung unter Verwendung eines Magnetresonanzsystems für die Extremitäten
Autor:Shellock, Frank G.; Mullin, Michael; Stone, Kevin R.; Coleman, Mark; Crues, John V.
Erschienen in:Journal of athletic training
Veröffentlicht:35 (2000), 1, S. 44-49, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Elektronische Ressource (online) Gedruckte Ressource
Sprache:Englisch
ISSN:1062-6050, 0160-8320, 1938-162X
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Erfassungsnummer:PU201102001211
Quelle:BISp

Abstract

Objective: To use an extremity magnetic resonance system to perform kinematic magnetic resonance imaging (MRI) of the patellofemoral joint to qualitatively assess the effect of bracing on patellar position. Design and Setting: Subjects underwent kinematic MRI of the symptomatic extremity with a 0.2-Tesla extremity magnetic resonance system. Images were obtained using a knee coil and a T1-weighted, spin echo pulse sequence. Subjects: Seven female patients with patellofemoral joint symptoms. Measurements: Four different axial sections were obtained for each position: extension and 3 positions of flexion up to 36°. An appropriate-sized patellofemoral brace was applied, and the kinematic MRI procedure was repeated.
Results: Six patients had lateral displacement of the patella, and 1 patient had medial displacement of the patella. After application of the brace, 6 patients (5 with lateral displacement and 1 with medial displacement, 86%) exhibited correction (5) or improvement (1 with lateral displacement) in the abnormal patellar positions, and 1 patient had worsening of the abnormal position of the patella. Conclusions: We used kinematic MRI to determine the presence of abnormal patellar positioning. Application of the brace counteracted the abnormal patellar positions in most of the patients studied. Verf.-Referat