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Improved Turnaround Times | Median time to first decision: 12 days

Research ArticleHead and Neck Imaging
Open Access

Role of Mastoid Pneumatization in Temporal Bone Fractures

A. Ilea, A. Butnaru, S.A. Sfrângeu, M. Hedeşiu, C.M. Dudescu, P. Berce, H. Chezan, L. Hurubeanu, V.E. Trombitaş, R.S. Câmpian and S. Albu
American Journal of Neuroradiology March 2014, DOI: https://doi.org/10.3174/ajnr.A3887
A. Ilea
From the Faculty of Dental Medicine, Department of Oral Rehabilitation, Oral Health and Dental Office Management (R.S.C., I.A., L.H.); Faculty of Medicine, Department of Radiology (A.B., S.A.S.); Faculty Department of Dental Radiology (M.H.); Faculty of Dental Medicine, Department of Cervicofacial and Ear, Nose, and Throat Surgery (R.S.C., S.A., V.E.T.); and Faculty of Machine Building, Department of Manufacturing Engineering (P.B., H.C.), “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania; and Faculty of Mechanics (C.M.D.), Department of Mechanical Engineering (H.C.), Technical University Cluj-Napoca, Cluj-Napoca, Romania.
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A. Butnaru
From the Faculty of Dental Medicine, Department of Oral Rehabilitation, Oral Health and Dental Office Management (R.S.C., I.A., L.H.); Faculty of Medicine, Department of Radiology (A.B., S.A.S.); Faculty Department of Dental Radiology (M.H.); Faculty of Dental Medicine, Department of Cervicofacial and Ear, Nose, and Throat Surgery (R.S.C., S.A., V.E.T.); and Faculty of Machine Building, Department of Manufacturing Engineering (P.B., H.C.), “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania; and Faculty of Mechanics (C.M.D.), Department of Mechanical Engineering (H.C.), Technical University Cluj-Napoca, Cluj-Napoca, Romania.
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S.A. Sfrângeu
From the Faculty of Dental Medicine, Department of Oral Rehabilitation, Oral Health and Dental Office Management (R.S.C., I.A., L.H.); Faculty of Medicine, Department of Radiology (A.B., S.A.S.); Faculty Department of Dental Radiology (M.H.); Faculty of Dental Medicine, Department of Cervicofacial and Ear, Nose, and Throat Surgery (R.S.C., S.A., V.E.T.); and Faculty of Machine Building, Department of Manufacturing Engineering (P.B., H.C.), “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania; and Faculty of Mechanics (C.M.D.), Department of Mechanical Engineering (H.C.), Technical University Cluj-Napoca, Cluj-Napoca, Romania.
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M. Hedeşiu
From the Faculty of Dental Medicine, Department of Oral Rehabilitation, Oral Health and Dental Office Management (R.S.C., I.A., L.H.); Faculty of Medicine, Department of Radiology (A.B., S.A.S.); Faculty Department of Dental Radiology (M.H.); Faculty of Dental Medicine, Department of Cervicofacial and Ear, Nose, and Throat Surgery (R.S.C., S.A., V.E.T.); and Faculty of Machine Building, Department of Manufacturing Engineering (P.B., H.C.), “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania; and Faculty of Mechanics (C.M.D.), Department of Mechanical Engineering (H.C.), Technical University Cluj-Napoca, Cluj-Napoca, Romania.
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C.M. Dudescu
From the Faculty of Dental Medicine, Department of Oral Rehabilitation, Oral Health and Dental Office Management (R.S.C., I.A., L.H.); Faculty of Medicine, Department of Radiology (A.B., S.A.S.); Faculty Department of Dental Radiology (M.H.); Faculty of Dental Medicine, Department of Cervicofacial and Ear, Nose, and Throat Surgery (R.S.C., S.A., V.E.T.); and Faculty of Machine Building, Department of Manufacturing Engineering (P.B., H.C.), “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania; and Faculty of Mechanics (C.M.D.), Department of Mechanical Engineering (H.C.), Technical University Cluj-Napoca, Cluj-Napoca, Romania.
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P. Berce
From the Faculty of Dental Medicine, Department of Oral Rehabilitation, Oral Health and Dental Office Management (R.S.C., I.A., L.H.); Faculty of Medicine, Department of Radiology (A.B., S.A.S.); Faculty Department of Dental Radiology (M.H.); Faculty of Dental Medicine, Department of Cervicofacial and Ear, Nose, and Throat Surgery (R.S.C., S.A., V.E.T.); and Faculty of Machine Building, Department of Manufacturing Engineering (P.B., H.C.), “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania; and Faculty of Mechanics (C.M.D.), Department of Mechanical Engineering (H.C.), Technical University Cluj-Napoca, Cluj-Napoca, Romania.
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H. Chezan
From the Faculty of Dental Medicine, Department of Oral Rehabilitation, Oral Health and Dental Office Management (R.S.C., I.A., L.H.); Faculty of Medicine, Department of Radiology (A.B., S.A.S.); Faculty Department of Dental Radiology (M.H.); Faculty of Dental Medicine, Department of Cervicofacial and Ear, Nose, and Throat Surgery (R.S.C., S.A., V.E.T.); and Faculty of Machine Building, Department of Manufacturing Engineering (P.B., H.C.), “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania; and Faculty of Mechanics (C.M.D.), Department of Mechanical Engineering (H.C.), Technical University Cluj-Napoca, Cluj-Napoca, Romania.
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L. Hurubeanu
From the Faculty of Dental Medicine, Department of Oral Rehabilitation, Oral Health and Dental Office Management (R.S.C., I.A., L.H.); Faculty of Medicine, Department of Radiology (A.B., S.A.S.); Faculty Department of Dental Radiology (M.H.); Faculty of Dental Medicine, Department of Cervicofacial and Ear, Nose, and Throat Surgery (R.S.C., S.A., V.E.T.); and Faculty of Machine Building, Department of Manufacturing Engineering (P.B., H.C.), “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania; and Faculty of Mechanics (C.M.D.), Department of Mechanical Engineering (H.C.), Technical University Cluj-Napoca, Cluj-Napoca, Romania.
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V.E. Trombitaş
From the Faculty of Dental Medicine, Department of Oral Rehabilitation, Oral Health and Dental Office Management (R.S.C., I.A., L.H.); Faculty of Medicine, Department of Radiology (A.B., S.A.S.); Faculty Department of Dental Radiology (M.H.); Faculty of Dental Medicine, Department of Cervicofacial and Ear, Nose, and Throat Surgery (R.S.C., S.A., V.E.T.); and Faculty of Machine Building, Department of Manufacturing Engineering (P.B., H.C.), “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania; and Faculty of Mechanics (C.M.D.), Department of Mechanical Engineering (H.C.), Technical University Cluj-Napoca, Cluj-Napoca, Romania.
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R.S. Câmpian
From the Faculty of Dental Medicine, Department of Oral Rehabilitation, Oral Health and Dental Office Management (R.S.C., I.A., L.H.); Faculty of Medicine, Department of Radiology (A.B., S.A.S.); Faculty Department of Dental Radiology (M.H.); Faculty of Dental Medicine, Department of Cervicofacial and Ear, Nose, and Throat Surgery (R.S.C., S.A., V.E.T.); and Faculty of Machine Building, Department of Manufacturing Engineering (P.B., H.C.), “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania; and Faculty of Mechanics (C.M.D.), Department of Mechanical Engineering (H.C.), Technical University Cluj-Napoca, Cluj-Napoca, Romania.
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S. Albu
From the Faculty of Dental Medicine, Department of Oral Rehabilitation, Oral Health and Dental Office Management (R.S.C., I.A., L.H.); Faculty of Medicine, Department of Radiology (A.B., S.A.S.); Faculty Department of Dental Radiology (M.H.); Faculty of Dental Medicine, Department of Cervicofacial and Ear, Nose, and Throat Surgery (R.S.C., S.A., V.E.T.); and Faculty of Machine Building, Department of Manufacturing Engineering (P.B., H.C.), “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania; and Faculty of Mechanics (C.M.D.), Department of Mechanical Engineering (H.C.), Technical University Cluj-Napoca, Cluj-Napoca, Romania.
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Abstract

BACKGROUND AND PURPOSE: The mastoid portion of the temporal bone has multiple functional roles in the organism, including regulation of pressure in the middle ear and protection of the inner ear. We investigated whether mastoid pneumatization plays a role in the protection of vital structures in the temporal bone during direct lateral trauma.

MATERIAL AND METHODS: The study was performed on 20 human temporal bones isolated from cadavers. In the study group formed by 10 temporal bone samples, mastoid cells were removed and the resulting neocavities were filled. The mastoids were maintained intact in the control group. All samples were impacted at the same speed and kinetic energy. The resultant temporal bone fractures were evaluated by CT.

RESULTS: Temporal squama fractures were 2.88 times more frequent, and mastoid fractures were 2.76 times more frequent in the study group. Facial nerve canal fractures were 6 times more frequent in the study group and involved all the segments of the facial nerve. Carotid canal fractures and jugular foramen fractures were 2.33 and 2.5 times, respectively, more frequent in the study group.

CONCLUSIONS: The mastoid portion of the temporal bone plays a role in the absorption and dispersion of kinetic energy during direct lateral trauma to the temporal bone, reducing the incidence of fracture in the setting of direct trauma.

  • © 2014 American Society of Neuroradiology

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Role of Mastoid Pneumatization in Temporal Bone Fractures
A. Ilea, A. Butnaru, S.A. Sfrângeu, M. Hedeşiu, C.M. Dudescu, P. Berce, H. Chezan, L. Hurubeanu, V.E. Trombitaş, R.S. Câmpian, S. Albu
American Journal of Neuroradiology Mar 2014, DOI: 10.3174/ajnr.A3887
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Cite this article
A. Ilea, A. Butnaru, S.A. Sfrângeu, M. Hedeşiu, C.M. Dudescu, P. Berce, H. Chezan, L. Hurubeanu, V.E. Trombitaş, R.S. Câmpian, S. Albu
Role of Mastoid Pneumatization in Temporal Bone Fractures
American Journal of Neuroradiology Mar 2014, DOI: 10.3174/ajnr.A3887

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