Surgical Management of Bilateral Mandibular Angle Fractures With a Third Molar in Line of Fracture: A European Multicenter Survey.

PURPOSE: The aim of this survey was to investigate the surgical management of bilateral mandibular angle fracture (BMAF) in Europe. METHODS: Data were collected from 2008 to 2018 on patients ≥ 16 years of age who underwent open reduction internal fixation (ORIF) for BMAF with a third molar in the fracture line. The study was conducted at 6 European trauma centers. The following data were recorded: sex, age, cause of the fracture, type of fracture (nondisplaced, displaced, comminuted), type of approach (intraoral, transbuccal, or extraoral), thickness of the plate (≤1.4 mm or ≥1.5 mm), number of plates, cause of plate removal, and third molar extraction status. RESULTS: 25 patients with BMAF (24 males, 1 female, 17 to 83 years old [mean: 28.2 years]) were collected. The main cause of BMAF was assault, and the main surgical approach was intraoral. The most common types of BMAF were displaced + undisplaced (11 patients), displaced + displaced (7 patients), undisplaced + undisplaced (6 patients), and comminuted + comminuted (1 patient). Osteosynthesis was performed with 2 ≤1.4 mm plates on 1 angular fracture and 1 ≤1.4 mm plate on the other fracture in 11 patients, 1 ≤1.4 mm plate on both angular fractures in 6 patients, 1 ≥1.5 mm plate on both fractures in 5 patients, and 2 ≤1.4 mm plates on both fractures in the remaining 3 patients. Out of 25 patients with BMAF, 7 third molars were extracted during ORIF. Among these patients, angular fracture fixation was performed in 3 cases with 1 ≥1.5 mm plate and in 4 patients with 2 ≤1.4 mm plates. CONCLUSIONS: This retrospective multicenter survey indicates a trend of treating with open reduction and rigid internal fixation at least 1 angular fracture of BMAF and those cases requiring extraction of the third molar in the line of fracture.

Motor vehicle accidents-related maxillofacial injuries: a multicentre and prospective study.

OBJECTIVES: The purpose of this European multicenter prospective study was to obtain more precise information about the demographic characteristics and etiologic/epidemiologic patterns of motor vehicle accidents (MVA)-related maxillofacial fractures. STUDY DESIGN: Of the 3260 patients with maxillofacial fractures admitted within the study period, 326 traumas were caused by MVAs with a male/female ratio of 2.2:1. RESULTS: The maximum incidence was found in Zagreb (Croatia) (18%) and the minimum in Bergen (Norway) (0%). The most frequent mechanisms were car accidents, with 177 cases, followed by motorcycle accidents. The most frequently observed fracture involved the mandible, with 199 fractures, followed by maxillo-zygomatic-orbital (MZO) fractures. CONCLUSIONS: In all the 3 groups (car, motorcycle, and pedestrian), mandibular and MZO fractures were the 2 most frequently observed fractures, with some variations. The importance of analyzing MVA-related facial injuries and their features and characteristics should be stressed.

Assault-related maxillofacial injuries: the results from the European Maxillofacial Trauma (EURMAT) multicenter and prospective collaboration.

OBJECTIVE: The aim of this study is to present and discuss the demographic characteristics and patterns of assault-related maxillofacial fractures as reported by a European multicenter prospective study. STUDY DESIGN: Demographic and injury data were recorded for each patient who was a victim of an assault. RESULTS: Assaults represented the most frequent etiology of maxillofacial trauma with an overall rate of 39% and the values ranging between 60.8% (Kiev, Ukraine) and 15.4% (Bergen, Norway). The most frequent mechanisms of assault-related maxillofacial fractures were fists in 730 cases, followed by kicks and fists. The most frequently observed fracture involved the mandible (814 fractures), followed by orbito-zygomatic-maxillary complex fractures and orbital fractures. CONCLUSIONS: Our data confirmed the strong possibility that patients with maxillofacial fractures may be victims of physical aggression. The crucial role of alcohol in assault-related fractures was also confirmed by our study.

European Maxillofacial Trauma (EURMAT) in children: a multicenter and prospective study.

OBJECTIVE: The aim of this study is to present and discuss the results of a European multicentre prospective study about pediatric maxillofacial trauma epidemiology during a year. STUDY DESIGN: The following data were recorded: gender, age, etiology, site of fracture, date of injury. Of the 3396 patients with maxillofacial fractures admitted within the study period, 114 (3.3%) were children aged 15 years and younger, with a male/female ratio of 2.6:1. Mean age was 10.9 years. Most patients (63%) were aged 11-15 years. RESULTS: The most frequent cause of injury was fall (36 patients). Sport injuries and assaults were almost limited to the oldest group, whereas falls were more uniformly distributed in the 3 groups. The most frequently observed fracture involved the mandible with 47 fractures. In particular, 18 condylar fractures were recorded, followed by 12 body fractures. CONCLUSIONS: Falls can be acknowledged as the most important cause of facial trauma during the first years of life. The high incidence of sport accidents after 10 years may be a reason to increase the use of mouthguards and other protective equipment. Finally, the mandible (and in particular the condyle) was confirmed as the most frequent fracture site.

European Maxillofacial Trauma (EURMAT) project: a multicentre and prospective study.

The purpose of this study was to analyse the demographics, causes and characteristics of maxillofacial fractures managed at several European departments of oral and maxillofacial surgery over one year. The following data were recorded: gender, age, aetiology, site of facial fractures, facial injury severity score, timing of intervention, length of hospital stay. Data for a total of 3396 patients (2655 males and 741 females) with 4155 fractures were recorded. The mean age differed from country to country, ranging between 29.9 and 43.9 years. Overall, the most frequent cause of injury was assault, which accounted for the injuries of 1309 patients; assaults and falls alternated as the most important aetiological factor in the various centres. The most frequently observed fracture involved the mandible with 1743 fractures, followed by orbital-zygomatic-maxillary (OZM) fractures. Condylar fractures were the most commonly observed mandibular fracture. The results of the EURMAT collaboration confirm the changing trend in maxillofacial trauma epidemiology in Europe, with trauma cases caused by assaults and falls now outnumbering those due to road traffic accidents. The progressive ageing of the European population, in addition to strict road and work legislation may have been responsible for this change. Men are still the most frequent victims of maxillofacial injuries.

Jaw cysts at children and adolescence: A single-center retrospective studyof 152 cases in southern Bulgaria

One hundred fifty two cysts of the upper and lower jaw were examined at patients up to 18 years old treated in theClinics of Maxillo-Facial Surgery, University Hospital, Plovdiv, Bulgaria for the period 1998 – 2007. Patients weredistributed in four age groups (up to 4 years old, from 5 to 9 years old, from 10 to 14 years old, from 15 to 18 yearsold). Both sexes were constantly affected (52% male, 48% female). The biggest number cystic lesions were foundin the third age group (48.7%). The mandible was preferable localization of the lesions (69.7%). Dentigerous cystspredominated (61.8%) – more affected was third age group (31.6%). Radicular cysts were observed two times less(31.6%) – more affected were third (15.8%) and fourth (12.5%) age groups. The most frequently observed clinicalsymptom was presence of painless swelling (59.9%). The operative interventions were carried out predominantlyunder general anesthesia (81.6%) by intraoral approach (97.4%). The extraoral surgical approach was preferred infour cases only – three in third and one in fourth age groups (AU)

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Jaw cysts at children and adolescence: a single-center retrospective study of 152 cases in southern Bulgaria.

One hundred fifty two cysts of the upper and lower jaw were examined at patients up to 18 years old treated in the Clinics of Maxillo-Facial Surgery, University Hospital, Plovdiv, Bulgaria for the period 1998 - 2007. Patients were distributed in four age groups (up to 4 years old, from 5 to 9 years old, from 10 to 14 years old, from 15 to 18 years old). Both sexes were constantly affected (52% male, 48% female). The biggest number cystic lesions were found in the third age group (48.7%). The mandible was preferable localization of the lesions (69.7%). Dentigerous cysts predominated (61.8%) - more affected was third age group (31.6%). Radicular cysts were observed two times less (31.6%) - more affected were third (15.8%) and fourth (12.5%) age groups. The most frequently observed clinical symptom was presence of painless swelling (59.9%). The operative interventions were carried out predominantly under general anesthesia (81.6%) by intraoral approach (97.4%). The extraoral surgical approach was preferred in four cases only - three in third and one in fourth age groups.

Bisphosphonate-associated osteonecrosis of the jaws -- report of three cases in Bulgaria and review of the literature.

A severe complication of the administration of bisphosphonate-containing medications is known as bisphosphonate-associated osteonecrosis of the jaws (BONJ). A case series of three patients affected by BONJ is presented. These patients currently represent the only described cases of BONJ in Bulgaria. Exposed necrotic bone of the mandible was observed in two patients and the maxilla was affected in the third case. Two of the patients had been treated with zoledronate for metastatic prostate cancer and one patient for metastatic endometrioid cancer. All three patients underwent surgical treatment. One of the patients received conservative surgical debridement, i.e. removal of necrotic bone only, and primary wound closure. Conservative surgical debridement and application of local medications without wound closure were used in the other two patients. All three patients received systemic antibiotic treatment. No evidence of disease progression was observed during the follow-up period of 3 to 12 months. The surgical approach utilized in the present study is discussed in the light of the etiopathogenesis, prevention and treatment of BONJ.

Maxillofacial fractures in Southern Bulgaria - a retrospective study of 1706 cases.

UNLABELLED: The present retrospective study investigated various types, aetiology, complications and methods of treatment of maxillofacial fractures managed in the Department of Maxillofacial Surgery, Medical University, Plovdiv, Bulgaria. PATIENTS AND METHODS: A total of 1706 patients were studied with 2534 fractures treated between 1994 and 2003. The analysis included data on age and gender of patients, causes and types of fractures (mean number of fractures per patient - 1.48) as well as the treatments used and the associated complications. RESULTS: Most maxillofacial fractures were sustained by 574 men (age range 21-30 years). The ratio of males to females was 4.6:1. Most fractures were caused by violent assault - 1040 (61%), followed by motor vehicle accidents - 264 (15.5%), fall - 213 (12.5%) and bites from animals - 72 (4%). Fractures of the mandible were sustained by 1261 patients (74%), fractures of the maxilla by 97 (6%), fractures of the zygomatic bone by 277 (16%), nasal fractures by 63 (4%) and multiple fractures by 8 (0.5%). In 1330 (77%) patients the fractures were treated by closed reduction; in 264 patients (16%) by open reduction and fixation, and for the remaining 112 patients (7%) were managed with combined closed and open reduction. The mortality rate was 0.2%, the lethal cases being a result of a combination of severe fractures in the maxillofacial region and trauma to other organs/systems. CONCLUSION: The most common cause of traumatic injury in the maxillofacial region in this study sample was assault, predominantly affecting men. The fractures were treated using various methods but mostly by closed reduction plus fixation.

Treatment of chronic mandibular dislocations by bone plates: two case reports.

BACKGROUND: Various surgical procedures have been used to limit mandibular opening in patients with recurrent dislocations of the temporomandibular joint (TMJ). These include intracapsular injection of sclerosing agents and tethering of the mandible. Other methods include obstruction of the condylar translation by downfracturing the zygomatic arch or by bone graft augmentation of the tuberculum and creating a mechanical impediment using Vitallium mesh or a stainless steel pin. MATERIAL: In this paper, two patients are described in whom the range of condylar movement was restricted by a bone plate attached to the lateral surface of the zygomatic arch. One arm of the plate was extended medially just below the articular eminence. One patient had a hypermobile joint in combination with mitral valve prolapse, and the other patient suffered mental retardation. The surgical technique is described in detail. RESULT: Six months postoperatively, TMJ function was unimpeded and there was no recurrence of condylar dislocation.

Surgical treatment of chronic mandibular dislocation--report of a case.

Chronic dislocation of the temporomandibular jaw (TMJ) can result from lax joint ligaments and parafunctioning joints; it can also be a consequence of a systemic connective tissue disorder. The authors report a case of hypermobile joint syndrome in combination with mitral valve prolapse. The case was managed by osteosynthesis using modified titanium plate.