Introduction: Fractures of the frontal bone are infrequent, ranging from 2 to 15% of the patients with facial fractures. According to Fonseca (2000), these fractures can be classified as type I, II, III and IV, depending on the involvement of the anterior table (I), anterior and posterior table (II), posterior table (III) and through-and-through frontal sinus fractures. The extension of treatment depends largely on the necessity of repair of CNS structures, frontal nasal duct status and cosmetic defects.
Objective: The aim of this study is to report a series of four cases of frontal sinus fractures, with different patterns, in which different modalities of treatment were employed.
A 32-year-old male patient, victim of interpersonal violence, sustaining a fresh isolated anterior table sinus fracture at left side, with concomitant sequelae of anterior table fracture at the right side, resulting from another interpersonal violence episode.
A 26-year-old female patient, victim of traffic accident, sustaining anterior and posterior table sinus fractures, with no dural commitment, and a cosmetic forehead defect.
A 22-year-old male patient, victim of interpersonal violence, sustaining a isolated anterior table sinus fracture with a resulting cosmetic defect.
A 33-year-old male patient, victim of a motorcycle accident, sustaining an anterior and posterior table sinus fractures, sinus drainage impairment, early signs of sinus infection and a dural tear.
All of these fractures were addressed surgically, each one demanding specific procedures. During the follow-up, no signs of infectious and aesthetics complications were observed.
Conflict of interest: None declared.