Dorsal fractures of the triquetrum: MRI findings with an emphasis on dorsal carpal ligament injuries.

Détails

ID Serval
serval:BIB_4BA9A54BF44C
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Dorsal fractures of the triquetrum: MRI findings with an emphasis on dorsal carpal ligament injuries.
Périodique
AJR. American Journal of Roentgenology
Auteur(s)
Becce F., Theumann N., Bollmann C., Omoumi P., Richarme D., Guerini H., Campagna R., Meuli R., Drapé J.L.
ISSN
1546-3141 (Electronic)
ISSN-L
0361-803X
Statut éditorial
Publié
Date de publication
2013
Volume
200
Numéro
3
Pages
608-617
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov'tPublication Status: ppublish
Résumé
OBJECTIVE: The objective of our study was to report the MRI findings in dorsal fractures of the triquetrum, with an emphasis on dorsal carpal ligament injuries.
MATERIALS AND METHODS: A total of 21 patients (16 men, five women; mean age, 41.9 years) with acute or subacute (≤ 6 weeks) dorsal triquetral fractures on radiography and MRI were included in this two-center retrospective study. MRI of the wrist was performed on 3-T units with transverse T1-weighted, coronal or transverse (or both) fat-suppressed T2weighted, transverse gadolinium-enhanced fat-suppressed T1-weighted turbo spin-echo, and 3D gadolinium-enhanced fat-suppressed T1-weighted gradient-recalled echo sequences. Three musculoskeletal radiologists evaluated the ulnar styloid process index (USPI) on radiographs and the following MRI features: fracture pattern (types 1-6), bone fragment size and displacement, bone marrow edema distribution, and dorsal carpal ligament tears.
RESULTS: Eight type 1, one type 2, six type 3, five type 4, and one type 5 fractures were identified. These fractures were associated with 14 (66.7%), 17 (81.0%), and 16 (76.2%) tears of the dorsal radiocarpal, ulnotriquetral, and intercarpal ligaments, respectively. There was no correlation between bone marrow edema distribution and dorsal carpal ligament injuries (all p > 0.05). The mean (± SD) bone fragment volume and displacement were 205 ± 157 mm(3) and 1.0 ± 1.1 mm, respectively. The mean USPI was 0.21 ± 0.10.
CONCLUSION: Dorsal fractures of the triquetrum are frequently associated with dorsal carpal ligament injuries. Bone marrow edema distribution is not correlated with these ligament tears.
Pubmed
Web of science
Open Access
Oui
Création de la notice
04/03/2013 12:02
Dernière modification de la notice
20/08/2019 13:59
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