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Erschienen in: Die Radiologie 4/2021

23.02.2021 | Magnetresonanztomografie | Leitthema

Der ulnokarpale Komplex

Neue klinische und radiologische Überlegungen

verfasst von: Prof. Dr. R. Schmitt, J. P. Grunz, K. Luetkens, E. Haas-Lützenberger, N. Hesse

Erschienen in: Die Radiologie | Ausgabe 4/2021

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Zusammenfassung

Klinisches Problem

Der trianguläre fibrokartilaginäre Komplex (TFCC) ist eine anatomisch komplex aufgebaute Struktur, die in der Bildgebung hohe Ansprüche an die Orts- und Dichteauflösung stellt.

Radiologische Verfahren

Unterschieden werden der zentrale, weitgehend avaskuläre Discus ulnocarpalis von der ligamentären, vaskularisierten Peripherie. An radiologischen Methoden stehen die Magnetresonanztomographie (MRT, bevorzugt kontrastverstärkt) sowie die MR- und CT-Arthrographie zur Verfügung.

Methodische Innovation

Während die hochaufgelöste MRT die diagnostische Basis am TFCC darstellt, sollten die arthrographischen Schnittbildverfahren zur dezidierten Frage nach dem Zustand der fovealen (proximalen) Lamina des TFCC eingesetzt werden. Die Konvergenz der TFCC-Peripherie auf den Processus styloideus ulnae und die Fovea capitis ulnae muss in der Befundung berücksichtigt werden.

Bewertung

Für Läsionen des Discus ulnocarpalis besitzt die Palmer-Klassifikation Vorteile, für Läsionen an den ulnaren Insertionen dagegen die Atzei-Klassifikation.

Empfehlung für die Praxis

Für eine sichere MRT-Diagnostik des TFCC sind eine hochaufgelöste Untersuchungstechnik und eine anatomiebasierte Bildinterpretation wichtig.
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Metadaten
Titel
Der ulnokarpale Komplex
Neue klinische und radiologische Überlegungen
verfasst von
Prof. Dr. R. Schmitt
J. P. Grunz
K. Luetkens
E. Haas-Lützenberger
N. Hesse
Publikationsdatum
23.02.2021
Verlag
Springer Medizin
Erschienen in
Die Radiologie / Ausgabe 4/2021
Print ISSN: 2731-7048
Elektronische ISSN: 2731-7056
DOI
https://doi.org/10.1007/s00117-021-00824-4

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