Its “Anterior” or “Outer” table, which forms the brow, forehead, and glabella, is strong and sturdy, with an average thickness of 4 mm, but can reach even up to 12 mm. Residual forehead contour defects and deformities.Įach FS is shaped somewhat like a pyramid, with its base directed medially, forming the intersinus septum. The immediate or acute concerns of frontal bone fractures and FS injuries revolve around: Also of significance is the fact that as the FS is an air space containing microbial flora, that communicates with the nasal cavity, i.e., the exterior, hence FS fractures are open/compound and are prone to infections which can be potentially life-threatening. These injuries present quite a few challenges to the treating surgeon, and the ideal treatment paradigms have been debated over many years. Further, unaddressed frontal bone fractures with residual defects can leave a patient with disfiguring forehead deformities and prominent contour irregularities.įS injuries involve fractures of the frontal bone with associated involvement of the FS to varying degrees. However, because of their location and close proximity to vital structures such as the orbital and intracranial contents, these injuries can have devastating sequelae if inadequately handled or improperly managed. Fractures of the frontal bone with associated involvement of the frontal sinuses (FSs) are relatively uncommon injuries in maxillofacial trauma, comprising just around 5% of all maxillofacial injuries.
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