[Epidemiological and tomodensitometric aspects of post-traumatic maxillofacial fractures in Mopti, Mali]. / Profil épidémiologique et tomodensitométrique des fractures maxillo-faciales post-traumatiques à Mopti au Mali.

Introduction: facial injuries are a public health problem, both physically and psychologically, characterized by a variety of injuries and sometimes by severe esthetic or functional sequelae. The purpose of this study was to describe the epidemiological and tomodensitometric aspects of maxillofacial fractures in Mopti. Methods: we conducted a cross-sectional and descriptive study in the Department of Radiology of the Mopti Hospital from January 2019 to December 2019. All patients who had undergone maxillofacial CT scan for a trauma with fracture confirmed by CT scan during this period were included. The variables analyzed were age, sex, etiology and the types of fractures observed on CT scan. Data recording and analysis were carried out using SPSS version 20 and Excel 2013. Results: of a total of 120 patients, the mean age was 26.43 years with a standard deviation of 14.547. Men predominated (75%; n= 90). Road accidents were the leading cause of fractures (50%; n = 60). Occlusofacial fractures accounted for 38.33% (n= 46). Lefort II was the most common fracture (22.50%; n= 27). Conclusion: this study allowed us to identify the population groups most affected by maxillofacial fractures in the Mopti region: adolescents and young adults. Tomodensitometric results were dominated by occlusofacial fractures, in particular Lefort type II fractures.

[Role of helical computed tomography in petrous bone trauma: about 12 cases at the University Hospital Ibn Rochd of Casablanca]. / Place du scanner hélicoïdal dans le traumatisme du rocher: à propos de 12 cas au Centre Hospitalier Universitaire Ibn Rochd de Casablanca.

Temporal bone injuries occur in 14-22% of skull fractures occurring due to head trauma. The purpose of this study is to understand the role of helical computed tomography in petrous bone trauma and to show the different types of fractures and the associated lesions. We conducted a retrospective study of 12 patients with petrous bone trauma (including 10 men and 2 women) over a period of 14 months. The average age of patients was 30, ranging from 18 to 42 years. High-resolution multi-slice computed tomography of petrous bone without contrast agent injection, with infra-millimeter slices thickness of 0.6mm every 0.3mm, allowed to detect the following fractures: 8 extralabyrinthine transverse fractures; 1 extralabyrinthine longitudinal fracture; 2 translabyrinthine fractures and 1 oblique fracture. The associated lesions were dominated by: 5 ossicular lesions; 4 cases of temporal bone involvement and 2 cases of geniculate ganglion involvement. High-resolution computed tomography can confirm the presence of a fracture, show the orientation of the fracture line and specify the different structures affected. It can be performed for emergency assessment or after a period of observation.