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Concomitant traumatic brain injury (TBI) is common in facial fracture patients and prompt intervention is crucially important to minimise the risk of potential long-term sequalae. In order to achieve rapid diagnosis, clinicians need to be aware of the risk factors associated with concomitant TBI and facial fractures. Previous literature suggests that a facial fracture can be considered a significant indicator of TBI. Nevertheless, a large data gap remains on specific injury patterns of facial fractures and associated TBI. Therefore, the objective of this study was to estimate and compare the frequency of and risk factors for TBI in patients with and without different types of additional injuries. The retrospective cohort study included 1836 facial fracture patients aged at least 18 years. The outcome variable was TBI with radiological findings in computed tomography or magnetic resonance imaging. The primary predictor variables were associated injury outside the head and neck, associated cranial fracture and associated neck injury. Based on this study, associated cranial fracture increased the risk of TBI 4.7-fold. Patients with associated neck injury had a 2.1-fold risk of TBI. In addition, significant predictors for TBI were increasing age (p = 0.0004), high energy of injury (p < 0.0001) and anticoagulant medication (p = 0.0003). Facial fracture patients with associated injuries in the head and neck region are at significant risk of TBI. In clinical work, multiprofessional evaluation of facial fracture patients should be routine and repeated survey should be targeted especially at high-risk patients to identify TBIs.
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BACKGROUND: We aimed to retrospectively measure the incidence of missed orbital blowout fracture diagnosis in primary examinations of patients with surgically treated fractures, to identify the causes of the diagnostic oversight, and to describe the clinical manifestations of the fractures. MATERIAL AND METHODS: A retrospective cohort of all patients with unilateral orbital blowout fractures who underwent subsequent surgical fracture reduction at the Department of Oral and Maxillofacial Diseases, Helsinki University Hospital, from January 2011 to July 2021, was gathered. Demographics, fracture type, associated injuries, clinical manifestations, reconstruction indication, diagnostic delay, and causes of fractures were analysed. For statistical analysis, Fisher's exact test, unpaired t-test, and the Wilcoxon Rank Sum were used. Significance was set at PË0.05. RESULTS: Fracture diagnosis was missed in 26 (13%) of 207 patients: in 40% of patients aged under 18 years and in 10% of patients aged 18 years or over (P=0.005). Suboptimal eye examination was found in 62% of patients with missed fracture and in 13% of those with timely diagnosis (P<0.001). Adjusted odds ratios for missed diagnosis in patients aged under 18 years versus patients aged 18 years and over was 9.3 (95% CI 2.4-35) and in patients with suboptimal versus sufficient eye examination 13.6 (95% CI 5.1-37). More common clinical manifestations in patients aged under 18 years were diplopia or restricted eye movements (P=0.005), pain in eye movements (P=0.010), nausea and/or vomiting (P<0.001), and bradycardia (P=0.014); periorbital haematoma was rarer (P<0.001). Suboptimal eye examination was involved in 62% and misinterpretation of computed tomography images in 50% of missed fractures, together explaining 85% of cases. CONCLUSIONS: Orbital blowout fractures are often missed in primary examination, especially in children and adolescents, who also present with subtler clinical manifestations. While the diagnosis can be difficult, appropriate clinical and radiological examination will reveal most cases.
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BACKGROUND: In recent years, electric scooters (e-scooter) have emerged as an alternative mode of urban transport due to their availability and effortless use. However, e-scooter-related trauma and injuries, especially to the head, have received wide media coverage and raised public concern about their safety. We aim to determine and compare clinically relevant variables, incidence, and severity between bicycle and e-scooter-related facial fractures and potential protective measures for injury prevention. MATERIAL AND METHODS: This retrospective study comprised all patients admitted to a tertiary trauma center with bicycle or e-scooter-related facial fractures between January 2019 and October 2020. Patient- and injury-related variables, including demographics, injury mechanisms, helmet use, influence of alcohol, types of facial injuries, types of other injuries, given treatment, and hospital stay, were collected, analysed, and compared between bicycle and e-scooter injuries. RESULTS: Altogether 169 patients with facial fractures, 124 bicycle-related injuries (73.4%) and 45 e-scooter-related injuries (26.6%) were included. Alcohol involvement was significantly higher in e-scooter patients (88.9%) than in bicycle patients (31.5%) (p<0.001). Driving under the influence of alcohol was associated with driving without a helmet in both groups (p<0.001). In multivariate analyses, e-scooter accidents were 18 times more likely to occur under the influence of alcohol (OR 17.85, p<0.001) and were more likely to involve collision with a stationary object (OR 3.81, p=0.028). E-scooter patients were significantly younger (OR 0.95, p<0.001) and had significantly more cranial fractures (OR 10.15, p=0.014) than bicycle patients. CONCLUSIONS: Compared with patients in bicycle accidents, facial fracture patients injured in e-scooter accidents are younger, are more likely under the influence of alcohol, and sustain more severe craniofacial skeleton fractures. Our results for both groups of patients advocate stricter adherence to helmet and road safety legislation as well as public education for injury prevention.
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Conducir bajo la Influencia , Fracturas Craneales , Humanos , Estudios Retrospectivos , Ciclismo/lesiones , Accidentes de Tránsito , EtanolRESUMEN
BACKGROUND: Primary sites for the metastasis of oral cancer are the cervical lymph nodes. Although there has been considerable technical advancement in the radiological imaging, capability to recognize all metastatic lymph nodes pre-operatively has remained as a challenge. Thus elective neck dissection (END) has remained as reliable practice to treat cervical lymph nodes. This study evaluated the accuracy of pre-operative imaging in pre-operative diagnostics of cervical lymph node status using computed tomography or magnetic resonance imaging in patients with oral squamous cell carcinoma (OSCC). We have also considered the reasons for the difficulties to recognise metastatic nodes in cervical area. MATERIAL AND METHODS: Patient charts of patients who had had elective neck dissection as a treatment for primary OSCC in the Department of Oral and Maxillofacial Surgery, Helsinki University Hospital between 2016 and 2017 were assessed retrospectively. The outcome variable was post-operatively histologically confirmed lymph node metastasis in the neck area. The primary predictor variable was radiologically confirmed metastasis in the neck area. The explanatory variables were age, sex, pT-class, imaging modality, delay and location of the tumour. Descriptive statistics, sensitivity, specificity and Youden-J index were computed. RESULTS: Eighty-three patients were included in the study. The sensitivity to detect pathological lymph nodes was 44.8%, and the specificity for the examination was 87.0%. 19.3% of cN0 patients had metastasis in the cervical nodes, whereas of the cN+ patients 8.4% were actually pN0. Patients having cN0, the largest neck metastasis was over 10 mm in 12.5%, whereas cN1-3 patients the corresponding rate was 45.5%. The computational threshold to diagnose a metastatic node was 7 mm. CONCLUSIONS: Especially small metastases are difficult to diagnose. Limitations of radiological diagnostics must be considered when treating OSCC.
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Carcinoma de Células Escamosas , Neoplasias de Cabeza y Cuello , Neoplasias de la Boca , Carcinoma de Células Escamosas/diagnóstico por imagen , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/cirugía , Neoplasias de Cabeza y Cuello/patología , Humanos , Neoplasias de la Boca/diagnóstico por imagen , Neoplasias de la Boca/patología , Neoplasias de la Boca/cirugía , Disección del Cuello/métodos , Estadificación de Neoplasias , Reproducibilidad de los Resultados , Estudios RetrospectivosRESUMEN
This study clarified the injury characteristics and occurrence of associated injuries in patients with assault-related facial fractures. Data from 840 assault-related facial fracture patients were included; demographic factors, facial fracture type, associated injuries, alcohol use, and injury mechanisms were recorded. Assault mechanisms most often included combinations of different mechanisms (57.5%) and resulted in the victim falling (50.1%). The perpetrator was most commonly a stranger (52.5%) and acted alone (57.7%). A total of 123 patients (14.6%) had associated injuries, with the most common being traumatic brain injury. Associated injuries occurred most frequently in patients with combined fractures of the facial thirds (24.2%) and upper third fractures (42.9%). The most significant differentiating factors for associated injuries were the number of perpetrators, falling, the use of an offensive weapon, and if the events of the assault remained unknown. In adjusted logistic regression analyses, statistically significant associations with associated injuries were found for age (odds ratio (OR) 1.05, 95% confidence interval (CI) 1.03-1.07; P < 0.001), falling due to the assault (OR 2.87, 95% CI 1.49-5.50; P = 0.002), and upper third facial fractures (OR 6.93, 95% CI 2.06-23.33; P = 0.002). A single punch also caused severe injuries and should therefore not be overlooked, as this can be as dangerous as other assault mechanisms.
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Traumatismos Faciales , Fracturas Craneales , Accidentes por Caídas , Consumo de Bebidas Alcohólicas , Huesos Faciales , Humanos , Estudios RetrospectivosRESUMEN
Current knowledge of blunt cerebrovascular injuries (BCVIs) in craniomaxillofacial fracture (CMF) patients is limited. The purpose of this study was to determine the occurrence of BCVIs in patients with all types of CMF. This retrospective study included CMF patients in a level 1 trauma centre during a 3-year period. Patients who were not imaged with computed tomography angiography and patients with mechanisms other than blunt injury were excluded. The primary outcome variable was BCVI. A total of 753 patients were included in the analysis. A BCVI was detected in 4.4% of the patients screened. BCVIs occurred in 8.7% of cranial fracture patients, 7.1% of combined craniofacial fracture patients, and 3.1% of facial fracture patients. The risk of BCVI was significantly increased in patients with isolated cranial fractures (odds ratio (OR) 2.55, 95% confidence interval (CI) 1.18-5.50; P=0.017), those involved in motor vehicle accidents (OR 3.42, 95% CI 1.63-7.17; P=0.001), and those sustaining high-energy injuries (OR 3.17, 95% CI 1.57-6.40; P=0.001). BCVIs in CMF patients are relatively common in high-energy injuries. However, these injuries also occur in minor traumas. Imaging thresholds should be kept low in this patient population when BCVIs are suspected.
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Traumatismos Cerebrovasculares , Heridas no Penetrantes , Traumatismos Cerebrovasculares/diagnóstico por imagen , Traumatismos Cerebrovasculares/epidemiología , Angiografía por Tomografía Computarizada , Humanos , Tamizaje Masivo , Estudios Retrospectivos , Heridas no Penetrantes/diagnóstico por imagen , Heridas no Penetrantes/epidemiologíaAsunto(s)
Condromatosis Sinovial , Implantes Dentales , Condromatosis Sinovial/diagnóstico por imagen , Condromatosis Sinovial/cirugía , Humanos , Mandíbula , Cóndilo Mandibular/diagnóstico por imagen , Cóndilo Mandibular/cirugía , Osteotomía , Articulación Temporomandibular/diagnóstico por imagen , Articulación Temporomandibular/cirugíaRESUMEN
The purpose of this study was to clarify the frequency of missed mandibular fractures and to identify possible predictive factors for missed diagnosis. This was a retrospective study that included patients <20 years of age with a recent mandibular fracture. The outcome variable was missed mandibular fracture, which was determined when a fracture was not suspected or diagnosed during the patient's first assessment in primary healthcare. The primary predictor variable was age group (i.e. children <13 years or teenagers/adolescents aged 13-19 years). The explanatory variables were sex, mechanism of injury, and type of facial facture. Other variables were clinical symptoms and findings. Mandibular fracture was missed at first contact in 27 of 182 patients (14.8%). Fracture was missed significantly more often in patients <13 years than in older patients (33.3% vs. 8.8%, P<0.001). The only significant symptom or clinical finding that was associated with missed fractures was skin wound of the jaw (P=0.009). There was no association between missed fracture and sex or mechanism of injury. Mandibular fractures in children are often missed at the first healthcare contact. Careful examination is necessary in paediatric mandibular injuries, particularly in the youngest age groups. Consultation should be smooth between paediatric trauma units and maxillofacial surgeons.
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Fracturas Mandibulares , Adolescente , Adulto , Anciano , Niño , Humanos , Fracturas Mandibulares/diagnóstico por imagen , Fracturas Mandibulares/epidemiología , Estudios Retrospectivos , Adulto JovenRESUMEN
Our aim was to investigate delay in the treatment of patients with acute odontogenic infections. A prospective clinical study and a questionnaire survey were designed and implemented in the emergency maxillofacial surgical patients of Helsinki University Hospital, Finland, over a one-year period. Altogether 88 adult patients with odontogenic infections confirmed by hospital examination were included in the analysis. The outcome variable was admission to hospital. Two-thirds of the patients had had previous visits for health care for their current infection. Treatment was started in nearly half the patients before hospital admission, and half of the treatment provided was exclusively antibiotics. The focus of infection was detected in half the patients before admission. Patients who were required further hospitalisation were younger than who were discharged (p=0.021). Less well-educated patients were more likely to be hospitalised than patients in other education groups (p=0.033). Leucocytosis was more prevalent in patients with a mandibular focus (p=0.008), non-identified focus (p=0.010), and infection as a result of elective tooth extraction (p=0.026). The number of previous health care visits for the acute infection was notably high. Early treatment of infection may be overlooked, particularly in younger age groups and less well-educated patients. Challenges in making the correct diagnosis and prescribing effective treatment for such infections cause additional health care visits and unnecessary delay in care. More attention should be paid to the early detection and comprehensive primary treatment of odontogenic infections.
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Infecciones , Mandíbula , Adulto , Antibacterianos , Hospitalización , Humanos , Estudios Prospectivos , Estudios Retrospectivos , Resultado del TratamientoRESUMEN
The aim of this retrospective study was to analyse a consecutive series of patients with oral and oropharyngeal carcinoma who had had sentinel lymph node biopsy (SLNB) at our hospital during 2008-2017. A total of 70 patients with clinically and radiologically confirmed primary oral (n=67) or oropharyngeal (n=3) carcinoma, with no signs of metastatic lymph nodes preoperatively (clinically N0) were included. Patients' clinical and personal data, characteristics of the tumours, sentinel lymph node (SLN) status and outcomes were recorded. Eight patients had invaded SLN. Two patients with clear sentinel lymph node biopsies had recurrences in the cervical lymph nodes with no new primary tumour as origin. The negative predictive value (NPV) and sensitivity for SLNB were 97% and 80%, respectively. The depth of invasion was an individual predictor for cervical lymph node metastasis (p=0.043). Single photo emission computed tomography (SPECT) detected fewer SLN in patients with invaded lymph nodes than in patients with clear lymph nodes (p=0.018). Our data support the use of SLNB as a minimally invasive method for staging the cervical lymph nodes among patients with cN0 oral and oropharyngeal carcinoma. Our results further confirm that greater depth of invasion is associated with cervical lymph node metastases.
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Carcinoma de Células Escamosas , Neoplasias de la Boca , Ganglio Linfático Centinela , Carcinoma de Células Escamosas/cirugía , Humanos , Ganglios Linfáticos/diagnóstico por imagen , Ganglios Linfáticos/patología , Neoplasias de la Boca/cirugía , Disección del Cuello , Recurrencia Local de Neoplasia , Estadificación de Neoplasias , Estudios Retrospectivos , Ganglio Linfático Centinela/patología , Biopsia del Ganglio Linfático CentinelaRESUMEN
INTRODUCTION: The progressive aging of European population seems to determine a change in the epidemiology, incidence and etiology of maxillofacial fractures with an increase in the frequency of old patients sustaining craniofacial trauma. The objective of the present study was to assess the demographic variables, causes, and patterns of facial fractures in elderly population (with 70 years or more). MATERIALS AND METHODS: The data from all geriatric patients (70 years or more) with facial fractures between January 1, 2013, and December 31, 2017, were collected. The following data were recorded for each patient: gender, age, voluptuary habits, comorbidities, etiology, site of facial fractures, synchronous body injuries, Facial Injury Severity Score (FISS). RESULTS: A total of 1334 patients (599 male and 735 female patients) were included in the study. Mean age was 79.3 years, and 66% of patients reported one or more comorbidities. The most frequent cause of injury was fall and zygomatic fractures were the most frequently observed injuries. Falls were associated with a low FISS value (P<.005). Concomitant injuries were observed in 27.3% of patients. Falls were associated with the absence of concomitant injuries. The ninth decade (P<.05) and a high FISS score (P<.005) were associated with concomitant body injuries too. CONCLUSIONS: This study confirms the role of falls in the epidemiology of facial trauma in the elderly, but also highlights the frequency of involvement of females, and the high frequency of zygomatic fractures.
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Traumatismos Maxilofaciales , Fracturas Craneales , Fracturas Cigomáticas , Accidentes por Caídas , Anciano , Femenino , Humanos , Puntaje de Gravedad del Traumatismo , Masculino , Traumatismos Maxilofaciales/epidemiología , Traumatismos Maxilofaciales/etiología , Fracturas Craneales/epidemiología , Fracturas Craneales/etiologíaRESUMEN
Preoperative virtual planning and the use of patient-specific implants enable exact reconstruction of orbital fractures. We present our results and experience of reconstruction of isolated orbital fractures with patient-specific implants, according to the Helsinki protocol, in 15 patients who were followed up for at least three months postoperatively. The mean (range) difference between the positions of virtually planned, and postoperative, implants was 1.9 (0.5-5.6) mm. The postoperative volume of the fractured orbit was 1.34ml less than that of the non-fractured side, but this was not clinically relevant. None of the patients required reoperation and none had any implant-related complications during follow up. We conclude that patient-specific implants are an adaptable and reliable treatment for primary orbital trauma, and that the Helsinki protocol may have wider applications in the treatment of facial fractures.
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Fijación Interna de Fracturas/instrumentación , Fracturas Orbitales/cirugía , Implantes Orbitales , Diseño de Prótesis , Titanio , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Fracturas Orbitales/diagnóstico por imagen , Estudios Retrospectivos , Tomografía Computarizada por Rayos X , Resultado del TratamientoRESUMEN
Our aims were to document the occurrence of neurosensory disturbances of the infraorbital nerve six months after operation for an orbital blow-out fracture, and to find out whether dexamethasone facilitates neurosensory regeneration. Patients were randomly assigned to one of two groups: the study group was given a total of dexamethasone 30mg, whereas the control group were given neither glucocorticoid nor placebo. Each patient's infraorbital neurosensory state was recorded preoperatively, immediately postoperatively, and six months later. A total of 18 patients were included, eight of whom had neurosensory disturbances six months after the initial trauma that was not affected by dexamethasone. Six of the seven patients who had a delay of seven days or more between trauma and operation had significantly prolonged disturbance at the 180-day clinical follow up compared with those in whom it was less than seven days (p=0.005). Other possible predictors made no significant difference. Although dexamethasone did not facilitate sensory recovery, its benefits in the management of pain and reduction of swelling may justify its use in the management of facial trauma in selected patients.
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Dexametasona/uso terapéutico , Glucocorticoides/uso terapéutico , Órbita/inervación , Fracturas Orbitales/cirugía , Complicaciones Posoperatorias/prevención & control , Trastornos Somatosensoriales/prevención & control , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Recuperación de la Función , Método Simple Ciego , Resultado del TratamientoRESUMEN
The aim of this prospective follow-up study was to clarify the incidence and characteristics of dysfunction of the temporomandibular joint (TMJ) in patients treated surgically for fractures of the zygomatic complex. Patients were evaluated on presentation and six months after injury to assess the function of the masticatory system using the Helkimo index, which incorporates two complementary subindices: the subjective symptomatic (anamnestic) index (Ai) and the objective clinical dysfunction index (Di). Forty-five patients (12 women and 33 men, mean (range) age 44 (21-83)years) completed the study. Six patients developed subjective symptoms of dysfunction of the TMJ during follow-up, in four of whom they were severe. Clinical findings were noted in 38 patients but without significant association with subjective symptoms. Dysfunction of the TMJ is common six months after surgical treatment of a fracture of the zygomatic complex, and patients with such fractures should be evaluated for temporomandibular dysfunction during follow-up and referred for treatment when necessary.
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Complicaciones Posoperatorias/epidemiología , Trastornos de la Articulación Temporomandibular/epidemiología , Fracturas Cigomáticas/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Factores de Riesgo , Resultado del TratamientoRESUMEN
The first 2^{+} and 3^{-} states of the doubly magic nucleus ^{132}Sn are populated via safe Coulomb excitation employing the recently commissioned HIE-ISOLDE accelerator at CERN in conjunction with the highly efficient MINIBALL array. The ^{132}Sn ions are accelerated to an energy of 5.49 MeV/nucleon and impinged on a ^{206}Pb target. Deexciting γ rays from the low-lying excited states of the target and the projectile are recorded in coincidence with scattered particles. The reduced transition strengths are determined for the transitions 0_{g.s.}^{+}â2_{1}^{+}, 0_{g.s.}^{+}â3_{1}^{-}, and 2_{1}^{+}â3_{1}^{-} in ^{132}Sn. The results on these states provide crucial information on cross-shell configurations which are determined within large-scale shell-model and Monte Carlo shell-model calculations as well as from random-phase approximation and relativistic random-phase approximation. The locally enhanced B(E2;0_{g.s.}^{+}â2_{1}^{+}) strength is consistent with the microscopic description of the structure of the respective states within all theoretical approaches. The presented results of experiment and theory can be considered to be the first direct verification of the sphericity and double magicity of ^{132}Sn.
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BACKGROUND: The objective was to evaluate health-related quality of life (HRQoL) before and after surgical treatment of zygomatic complex fracture and assess patients' perceptions of the aesthetic and functional outcomes of surgery. MATERIAL AND METHODS: A prospective study of 79 adult patients before and after surgery for zygomatic complex fracture was conducted. HRQoL was measured using the generic 15-dimensional (15D) instrument, and patient satisfaction was assessed by an additional questionnaire. RESULTS: The mean preoperative 15D score for patients was lower than for general population that was matched for age and gender (p=0.011). The mean 15D score was lowest on the first postoperative day (p<0.001) when patients were worse off for 6 of the 15 dimensions of the HRQoL instrument and better off for three dimensions. However, patients achieved, and even exceeded, the mean 15D score of the general population during the first month following surgery. Infraorbital sensory loss at the end of the six-month follow-up appeared to be the single most important factor that plagued the patients. CONCLUSIONS: HRQoL is significantly reduced after trauma but improves a few weeks after surgery. Infraorbital nerve sensory loss is a notable long-term factor that affects patients after zygomatic complex fracture.
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Calidad de Vida , Fracturas Cigomáticas/cirugía , Adulto , Femenino , Humanos , Masculino , Estudios Prospectivos , AutoinformeRESUMEN
This study aimed to establish the incidence of postoperative nausea and vomiting (PONV) in facial fracture patients. The specific aim was to investigate the effect of perioperative dexamethasone on PONV. A total of 119 adult patients with facial fractures were analysed in this prospective study. Patients were randomized to receive perioperatively either a total dose of 30mg of dexamethasone i.v. and i.m., or no glucocorticoid (control). PONV was evaluated every 6hours during the first postoperative 24hours and when pain medications were given. PONV occurred in 20 out of 119 patients (16.8%). The only significant (P=0.016) association with PONV was postoperative administration of opioids. Slightly more cases of PONV occurred for patients who had not received dexamethasone (20%) compared to those who had (13.6%). PONV was also non-significantly more common in patients ≥40 years (21.3%) than in patients < 40 years (12.1%), after orbital floor reconstruction (28.0%) compared with mandibular (11.6%) and zygomatic (15.6%) fractures surgeries, and also after anaesthesia lasting >97minutes (21.7%) compared with a shorter duration (11.3%). Alternative medications should be used for prevention of post-surgery nausea and vomiting in facial fracture patients.
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Antieméticos/uso terapéutico , Dexametasona/uso terapéutico , Traumatismos Faciales/cirugía , Fijación Interna de Fracturas/métodos , Náusea y Vómito Posoperatorios/prevención & control , Fracturas Craneales/cirugía , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Resultado del TratamientoRESUMEN
The aim of this retrospective study was to clarify the occurrence and types of dental injuries in 389 patients who had been diagnosed with facial fractures, and to analyze whether the occurrence of dental injury correlates to gender, age, trauma mechanism and type of facial fracture. Dental injuries were observed in 62 patients (16%). The most common type of injury was a crown fracture (48%). Dental injuries were multiple in most patients (63%). Almost half (48%) of all injured teeth were severely injured. Most injured teeth (61%) were in the maxilla. The incisor region was the most prevalent site in both the mandible (45%) and the maxilla (56%). The occurrence of dental injury correlated significantly with trauma mechanism and fracture type: motor vehicle accidents and mandibular fracture were significant predictors for dental trauma. The notable rate of dental injury observed in the present study emphasizes the importance of a thorough examination of the oral cavity in all patients who have sustained facial fracture. Referral to a dental practice for further treatment and follow up as soon as possible after discharge from hospital is fundamental.