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Erschienen in: European Radiology 10/2017

13.03.2017 | Musculoskeletal

Systematic evaluation of concomitant extensor tendon sheath injury in patients with distal intra-articular radial fractures in MDCT using the floating fat sign

verfasst von: Amelie von Schneider-Egestorf, Bernhard Meyer, Frank Wacker, Herbert Rosenthal, Christian von Falck

Erschienen in: European Radiology | Ausgabe 10/2017

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Abstract

Objectives

We aimed to evaluate the involvement of extensor tendon sheaths in a large MDCT study group of patients with distal intra-articular radial fractures using the floating fat sign.

Methods

603 MDCT scans of patients with acute intra-articular distal radial fractures (Frykman III-VIII) acquired between January 2005 and October 2011 were analysed in consensus by two radiologists. The extensor tendon sheath involvement was assessed for each extensor tendon compartment and visually graded from 0 to 2 based on the amount of fat-fluid levels.

Results

Extensor tendon sheath involvement with fat-fluid levels was observed in 71.0% of the distal radial fractures, mainly in the second or third compartment. The frequency and degree of tendon sheath involvement was not related to the fracture severity. There was no statistically significant difference in the frequency of tendon effusion between the CT scans acquired before or after closed reduction.

Conclusion

Traumatic rupture of the extensor tendon sheaths with concomitant fatty effusion is a common finding in patients with distal intra-articular radial fractures.

Key points

Fat effusions in tendon sheaths are frequent in distal intra-articular radial fractures.
Fat effusions in tendon sheaths are caused by traumatic bone marrow spilling.
Effusions typically involve the second and third compartment simultaneously.
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Metadaten
Titel
Systematic evaluation of concomitant extensor tendon sheath injury in patients with distal intra-articular radial fractures in MDCT using the floating fat sign
verfasst von
Amelie von Schneider-Egestorf
Bernhard Meyer
Frank Wacker
Herbert Rosenthal
Christian von Falck
Publikationsdatum
13.03.2017
Verlag
Springer Berlin Heidelberg
Erschienen in
European Radiology / Ausgabe 10/2017
Print ISSN: 0938-7994
Elektronische ISSN: 1432-1084
DOI
https://doi.org/10.1007/s00330-017-4787-y

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