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Destabilisierung des Discus articularis mit Abriß der ulnaren Styloidspitze bei distaler Radiusfraktur. Diagnostik mit MR-Movie

Destabilitization of the triangular fibrocartilage complex with avulsion of the ulnar styloid apex following a fracture of the distal radius. Diagnosis with Dynamic MRI

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Zusammenfassung

Ein Abriß der ulnaren Styloidspitze führte bei gleichzeitiger Ruptur des ulnaren Kollaterralbandes und des Diskusansatzes in der Fovea ulnaris zur Verlagerung der Fibrocartilago. Diese wurde bei Bewegung in der Frontalebene verformt, verlagert, komprimier und blockierte die Ulnarduktion. Verletzungsausmaß und Impingement konnten im MRI-Movie dargestellt werden.

Abstract

An avulsion of the ulnar styloid apex led—because of a simultaneous rupture of the ulnar collateral ligament and a rupture of the disc's insertion in the fovea ulnaris—to a displacement of the triangular fibrocartilage. During movements in the frontal plane, the latter underwent a deformation, was displaced, compressed and blocked ulnar abduction. This pathology and the ulnar impingement could be observed in a “MRI-movie”.

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Literatur

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Author notes

  1. M. Gabl

    Present address: Universitätsklinik für Unfallchirurgie Innsbruck, Anichstraße 35, A-6020, Innsbruck

Authors and Affiliations

  1. Universitätsklinik für Unfallchirurgie Innsbruck, Anichstraße 35, A-6020, Innsbruck

    M. Lener, S. Pechlaner & A. Kathrein

  2. MRI Institut Innsbruck, Anichstraße 35, A-6020, Innsbrunck

    W. Judmater

Authors
  1. M. Gabl
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  2. M. Lener
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  3. S. Pechlaner
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  4. A. Kathrein
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  5. W. Judmater
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Gabl, M., Lener, M., Pechlaner, S. et al. Destabilisierung des Discus articularis mit Abriß der ulnaren Styloidspitze bei distaler Radiusfraktur. Diagnostik mit MR-Movie. Unfallchirurgie 19, 108–111 (1993). https://doi.org/10.1007/BF02588089

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  • DOI: https://doi.org/10.1007/BF02588089

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