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Ulnar variance as a predictor of persistent instability following Galeazzi fracture-dislocations

BACKGROUND: We investigated the radiographic parameters that may predict distal radial ulnar joint (DRUJ) instability in surgically treated radial shaft fractures. In our clinical experience, there are no previously reported radiographic parameters that are universally predictive of DRUJ instability...

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Autores principales: Takemoto, Richelle, Sugi, Michelle, Immerman, Igor, Tejwani, Nirmal, Egol, Kenneth A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer International Publishing 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3948522/
https://www.ncbi.nlm.nih.gov/pubmed/23989858
http://dx.doi.org/10.1007/s10195-013-0266-7
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author Takemoto, Richelle
Sugi, Michelle
Immerman, Igor
Tejwani, Nirmal
Egol, Kenneth A.
author_facet Takemoto, Richelle
Sugi, Michelle
Immerman, Igor
Tejwani, Nirmal
Egol, Kenneth A.
author_sort Takemoto, Richelle
collection PubMed
description BACKGROUND: We investigated the radiographic parameters that may predict distal radial ulnar joint (DRUJ) instability in surgically treated radial shaft fractures. In our clinical experience, there are no previously reported radiographic parameters that are universally predictive of DRUJ instability following radial shaft fracture. MATERIALS AND METHODS: Fifty consecutive patients, ages 20–79 years, with unilateral radial shaft fractures and possible associated DRUJ injury were retrospectively identified over a 5-year period. Distance from radial carpal joint (RCJ) to fracture proportional to radial shaft length, ulnar variance, and ulnar styloid fractures were correlated with DRUJ instability after surgical treatment. RESULTS: Twenty patients had persistent DRUJ incongruence/instability following fracture fixation. As a proportion of radial length, the distance from the RCJ to the fracture line did not significantly differ between those with persistent DRUJ instability and those without (p = 0.34). The average initial ulnar variance was 5.5 mm (range 2–12 mm, SD = 3.2) in patients with DRUJ instability and 3.8 mm (range 0–11 mm, SD = 3.5) in patients without. Only 4/20 patients (20 %) with DRUJ instability had normal ulnar variance (−2 to +2 mm) versus 15/30 (50 %) patients without (p = 0.041). CONCLUSION: In the setting of a radial shaft fracture, ulnar variance greater or less than 2 mm was associated with a greater likelihood of DRUJ incongruence/instability following fracture fixation.
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spelling pubmed-39485222014-03-14 Ulnar variance as a predictor of persistent instability following Galeazzi fracture-dislocations Takemoto, Richelle Sugi, Michelle Immerman, Igor Tejwani, Nirmal Egol, Kenneth A. J Orthop Traumatol Original Article BACKGROUND: We investigated the radiographic parameters that may predict distal radial ulnar joint (DRUJ) instability in surgically treated radial shaft fractures. In our clinical experience, there are no previously reported radiographic parameters that are universally predictive of DRUJ instability following radial shaft fracture. MATERIALS AND METHODS: Fifty consecutive patients, ages 20–79 years, with unilateral radial shaft fractures and possible associated DRUJ injury were retrospectively identified over a 5-year period. Distance from radial carpal joint (RCJ) to fracture proportional to radial shaft length, ulnar variance, and ulnar styloid fractures were correlated with DRUJ instability after surgical treatment. RESULTS: Twenty patients had persistent DRUJ incongruence/instability following fracture fixation. As a proportion of radial length, the distance from the RCJ to the fracture line did not significantly differ between those with persistent DRUJ instability and those without (p = 0.34). The average initial ulnar variance was 5.5 mm (range 2–12 mm, SD = 3.2) in patients with DRUJ instability and 3.8 mm (range 0–11 mm, SD = 3.5) in patients without. Only 4/20 patients (20 %) with DRUJ instability had normal ulnar variance (−2 to +2 mm) versus 15/30 (50 %) patients without (p = 0.041). CONCLUSION: In the setting of a radial shaft fracture, ulnar variance greater or less than 2 mm was associated with a greater likelihood of DRUJ incongruence/instability following fracture fixation. Springer International Publishing 2013-08-29 2014-03 /pmc/articles/PMC3948522/ /pubmed/23989858 http://dx.doi.org/10.1007/s10195-013-0266-7 Text en © The Author(s) 2013 https://creativecommons.org/licenses/by/2.0/Open AccessThis article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
spellingShingle Original Article
Takemoto, Richelle
Sugi, Michelle
Immerman, Igor
Tejwani, Nirmal
Egol, Kenneth A.
Ulnar variance as a predictor of persistent instability following Galeazzi fracture-dislocations
title Ulnar variance as a predictor of persistent instability following Galeazzi fracture-dislocations
title_full Ulnar variance as a predictor of persistent instability following Galeazzi fracture-dislocations
title_fullStr Ulnar variance as a predictor of persistent instability following Galeazzi fracture-dislocations
title_full_unstemmed Ulnar variance as a predictor of persistent instability following Galeazzi fracture-dislocations
title_short Ulnar variance as a predictor of persistent instability following Galeazzi fracture-dislocations
title_sort ulnar variance as a predictor of persistent instability following galeazzi fracture-dislocations
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3948522/
https://www.ncbi.nlm.nih.gov/pubmed/23989858
http://dx.doi.org/10.1007/s10195-013-0266-7
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