Bergh, Bart vd.indd

Chapter 2: " Aetiology and incidence of maxillofacial trauma in Amsterdam: A retrospective analysis of 579 patients. " All patients treated in the VU University Medical Center (Amsterdam), for maxillofacial trauma, were identified retrospectively (period 2000-2010). A total of 579 patients were identified (408 men and 171 women), with a mean age of 35.9 ± 16.3 years. Mandibular and zygomatic bone fractures were the most common among both men and women, accounting for approximately 80% of all fractures. As reported in previous studies, majority of the patients belonged to the age group of 20–29 years among both sexes. The most common cause of fractures was traffic accidents (bicycle accidents being the most frequent), followed by interpersonal violence, particularly among men. The results of this study are mostly in line with other international studies that were conducted in developed countries, but differ on one noteworthy aspect: a higher incidence of bicycle-related accidents. Chapter 3: " Treatment and complications of mandibular fractures: A 9-year analysis. " During the period 2000-2009, a total of 225 patients were treated for a uni-or multifocal mandibular fracture. The mean age of this population was slightly lower (32.6 ± 14.6 years) compared with the mean age of all maxillofacial trauma patients. A total of 431 fracture lines were identified. Similar to maxillofacial trauma in general, traffic-accidents were the main cause of mandibular fracture (42%), followed by interpersonal violence (24%) and falls (19%). A total of 1965 screws and 442 plates were used. Of the total population of 225 patients, 171 condylar fractures in 127 patients were observed. Of these 225 patients, 213 were dentate and 12 were edentulous. Eighty-two (36%) dentate patients presented with a unilateral condyle fracture with or without concomitant fracture of the mandible. These patients were all treated with IMF and osteosynthesis in case of an associated mandible fracture. Forty (18%) dentate patients were treated with IMF for a bilateral condyle fracture, with or without concomitant mandibular fracture. Two (2/225: 1%) patients were treated extraorally using a preauricular approach. Three edentulous patients were diagnosed with either a unilateral (n = 1) or bilateral (n = 2) condyle fracture.