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Prevalence of Temporal Bone Fractures in Patients with Mandibular Fractures Using Multidetector-Row CT
1Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1, Sakaecho-Nishi, 271-8587, Matsudo, Chiba, Japan, ogura.ichirou@nihon-u.ac.jp.
Clinical Neuroradiology
|January 25, 2014
Summary
Temporal bone fractures are more common with specific mandibular fractures. Paramedian and condylar mandibular fractures indicate a higher risk, suggesting MDCT screening for temporal bone fractures in these cases.
Area of Science:
- Radiology
- Trauma Surgery
- Anatomy
Background:
- Temporal bone fractures following mandibular trauma are considered rare.
- Prevalence data for temporal bone fractures in conjunction with mandibular fractures is lacking in current literature.
Purpose of the Study:
- To determine the prevalence of temporal bone fractures in patients sustaining mandibular fractures.
- To analyze the association between temporal bone fracture occurrence and the specific location of mandibular fractures.
Main Methods:
- A prospective study involving 201 patients with mandibular fractures who underwent 64-detector-row computed tomography (MDCT).
- Mandibular fractures were categorized by location: median, paramedian, angle, and condylar.
- Statistical analysis, including the chi-squared test with Fisher's exact test, was employed to assess significance (P < 0.05).
Main Results:
- Temporal bone fractures were identified in 3.0% of all patients with mandibular fractures.
- In patients with multiple fractures, specifically of the paramedian and condylar types, the prevalence of temporal bone fractures reached 19.0%.
- A statistically significant correlation was found between the incidence of temporal bone fractures and paramedian and condylar mandibular fractures (P = 0.001).
Conclusions:
- The presence of multiple paramedian and condylar type mandibular fractures serves as a significant indicator for concurrent temporal bone fractures.
- It is recommended that patients diagnosed with mandibular fractures, particularly those involving the paramedian and condylar regions, undergo MDCT evaluation to detect associated temporal bone fractures.
