Posttraumatic Orbital Emphysema: A Numerical Model
Joint Authors
Raczynska, Dorota
Skorek, Andrzej
Kłosowski, Paweł
Plichta, Łukasz
Zmuda Trzebiatowski, Marcin
Lemski, Paweł
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-09-16
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Orbital emphysema is a common symptom accompanying orbital fracture.
The pathomechanism is still not recognized and the usually assumed cause, elevated pressure in the upper airways connected with sneezing or coughing, does not always contribute to the occurrence of this type of fracture.
Observations based on the finite model (simulating blowout type fracture) of the deformations of the inferior orbital wall after a strike in its lower rim.
Authors created a computer numeric model of the orbit with specified features—thickness and resilience modulus.
During simulation an evenly spread 14400 N force was applied to the nodular points in the inferior rim (the maximal value not causing cracking of the outer rim, but only ruptures in the inferior wall).
The observation was made from 1 · 10 - 3 to 1 · 10 - 2 second after a strike.
Right after a strike dislocations of the inferior orbital wall toward the maxillary sinus were observed.
Afterwards a retrograde wave of the dislocation of the inferior wall toward the orbit was noticed.
Overall dislocation amplitude reached about 6 mm.
Based on a numeric model of the orbit submitted to a strike in the inferior wall an existence of a retrograde shock wave causing orbital emphysema has been found.
American Psychological Association (APA)
Skorek, Andrzej& Kłosowski, Paweł& Plichta, Łukasz& Raczynska, Dorota& Zmuda Trzebiatowski, Marcin& Lemski, Paweł. 2014. Posttraumatic Orbital Emphysema: A Numerical Model. Journal of Ophthalmology،Vol. 2014, no. 2014, pp.1-5.
https://search.emarefa.net/detail/BIM-1042434
Modern Language Association (MLA)
Skorek, Andrzej…[et al.]. Posttraumatic Orbital Emphysema: A Numerical Model. Journal of Ophthalmology No. 2014 (2014), pp.1-5.
https://search.emarefa.net/detail/BIM-1042434
American Medical Association (AMA)
Skorek, Andrzej& Kłosowski, Paweł& Plichta, Łukasz& Raczynska, Dorota& Zmuda Trzebiatowski, Marcin& Lemski, Paweł. Posttraumatic Orbital Emphysema: A Numerical Model. Journal of Ophthalmology. 2014. Vol. 2014, no. 2014, pp.1-5.
https://search.emarefa.net/detail/BIM-1042434
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1042434