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  4. Significance of clinical examination, CT and MRI scan in the diagnosis of posterior pelvic ring fractures
 
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Significance of clinical examination, CT and MRI scan in the diagnosis of posterior pelvic ring fractures

Publikationstyp
Journal Article
Date Issued
2014-10-22
Sprache
English
Author(s)
Nüchtern, Jakob Valentin  
Hartel, Maximilian  
Henes, Frank Oliver  
Groth, Michael  
Jauch, Sabrina Yvonne  
Hägele, Julian  
Briem, Daniel  
Hoffmann, Michael  
Lehmann, Wolfgang  
Rueger, Johannes M.  
Großterlinden, Lars Gerhard  
Institut
Biomechanik M-3  
TORE-URI
http://hdl.handle.net/11420/10301
Journal
Injury  
Volume
46
Issue
2
Start Page
315
End Page
319
Citation
Injury 46 (2): 315-319 (2015-02)
Publisher DOI
10.1016/j.injury.2014.10.050
Scopus ID
2-s2.0-84923094295
PubMed ID
25527459
Publisher
Elsevier Science
Patients with a fracture in the anterior pelvic ring often simultaneously demonstrate pain in the posterior pelvic ring. The aim of the present prospective study was to assess the sensitivity of CT, MRI and clinical examination in the detection of fractures in the posterior pelvic ring in patients with fractures of the anterior pelvic ring diagnosed in conventional radiographs. Methods: Sixty patients with radiographic signs of an anterior pelvic ring injury were included in this prospective analysis. Following a focused clinical examination of the posterior pelvis, all patients underwent both a CT and then a MRI scan of their pelvis. Two board certified radiologists evaluated the CT and MRI scans independently. To estimate the presence of osteoporosis the Hounsfield units of the vertebral body of L5 were measured in each case. Results: Fifty-three women and seven men, with a mean age of 74.7 +/- 15.6 years were included into the study. A fracture of the posterior pelvic ring was found in fourty-eight patients (80%) patients using MRI. Fractures of the posterior pelvic ring would have been missed in eight cases (17%), if only CT had been used. Eighty-five percent of the patients with a posterior fracture had an osteoporosis. The majority of the cases suffered from a low energy trauma. Thirty-eight patients (83%) with positive clinical signs at the posterior pelvic ring actually had a fracture of the posterior pelvic ring in the MRI. The clinical examination proved to be equally effective to CT in detecting posterior pelvic ring fractures. Conclusion: The significance of both, clinical examination and CT was confirmed in the detection of fractures in the posterior pelvic ring. MRI examination of the pelvis however, was found to be superior in detecting undislocated fractures in a cohort of patients with a high incidence of osteoporosis. Using MRI may be beneficial in select cases, especially when reduced bone density is suspected.
Subjects
Clinical examination
CT
Elderly
MRI
Osteoporosis
Pelvic ring fractures
DDC Class
600: Technik
610: Medizin
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