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Enhancing Box Sign: Enhancement Pattern of Acute Osteoprotic Compression Fracture

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Authors
Kim, Choong-Hyo; Park, Jae Hyo; Chung, Sang Ki; Kim, Ki-Jeong; Kim, Hyun-Jib; Bang, Jae Seung
Issue Date
2009-12
Publisher
KOREAN NEUROSURGICAL SOC
Citation
JOURNAL OF KOREAN NEUROSURGICAL SOCIETY; Vol.46 6; 528-531
Keywords
Compression fractureMagnetic resonance imagingGadolinium
Abstract
Objective : Although gadolinium enhancement of compression fractures is well known, the enhancement pattern of the acute stage of a fracture is not completely understood. Here, we investigated the enhancement pattern of acute vertebral compression fractures (VCFs). Methods : We conducted a retrospective study of patients with acute osteoporotic VCFs admitted to hospital between January 2004 and December 2005. The demographic details, stage of the fracture, management data, and results were analyzed. There were nine men and 22 women, and the mean age was 71 years (range, 53-92 years). According to the onset of pain, patients were divided into the following four groups Group I (less than 3 days), Group II (4-7 days), Group III (8-14 days), and Group IV (14-30 days). Results : All patients had central low-signal intensity of the nonenhancing part of vertebral bodies on T1 images. Enhancing box sign (EBS) was seen 7 days of VCF development. After 7 days of onset (Groups III and IV), patch or Kummell`s enhancements occurred. EBS has been statistically correlated with stage of compression fracture (Pearson`s correlation = -0.774). However, EBS had no statistically significant correlation with prognosis in our study {Pearson`s correlation = 0.059}. Conclusion : EBS represents a characteristic sign 7 days of VCF development.
ISSN
2005-3711
Language
English
URI
https://hdl.handle.net/10371/77047
DOI
https://doi.org/10.3340/jkns.2009.46.6.528
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College of Medicine/School of Medicine (의과대학/대학원)Neurosurgery (신경외과학전공)Journal Papers (저널논문_신경외과학전공)
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