Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 5 de 5
Filtrar
Mais filtros










Filtros aplicados
Base de dados
Intervalo de ano de publicação
1.
Med. oral patol. oral cir. bucal (Internet) ; 22(3): e371-e376, mayo 2017. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-163206

RESUMO

BACKGROUND: The purpose of this experimental study was to measure stresses both on the pterygoid plates and the skull base following two different pterygomaxillary approaches in Le Fort I osteotomy. MATERIAL AND METHODS: The prepared skull models were randomly divided into 2 groups of 7. In the first group (A), the pterygomaxillary area was left intact. In the second group (B), pterygomaxillary separation was performed with a fine bur. The stresses were measured by using strain gauges. These strain gauges were attached to 6 different anatomical sites. The skull models were mounted on a servo-hydraulic testing unit. Each model was then subjected to a continuous linear tension until a plastic deformation was seen. RESULTS: The statistical analyses showed that there were no significant differences (p > .05) between the 2 groups regarding the strain values. Moreover, no statistical differences (p >.05) were found between the two groups in terms of maximum applied forces. CONCLUSIONS: Considering the clinical conditions, the present study shows that when Le Fort I osteotomy performed without pterygomaxillary separation, there is no significant stress on the skull base during the downfracture. Moreover, it is considered that there is no need for an excessive force applied to perform downfracture in Le Fort osteotomies without pterygomaxillary separation


Assuntos
Humanos , Osteotomia de Le Fort/métodos , Músculos Pterigoides/cirurgia , Fratura da Base do Crânio , Estresse Fisiológico
3.
Neurocir. - Soc. Luso-Esp. Neurocir ; 24(5): 225-228, sept.-oct. 2013. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-127179

RESUMO

Aunque el déficit de origen traumático del séptimo par craneal es una entidad común en la práctica neuroquirúrgica, la parálisis facial bilateral asociada a fracturas temporales supone un episodio infrecuente. Describimos el caso de un paciente de 38 años que sufre un traumatismo craneoencefálico severo (Glasgow Coma Scale de 7). En la TC inicial se apreció una fractura de peñasco longitudinal derecha y transversal izquierda. El paciente ingresó en la unidad de cuidados intensivos y, tras la extubación, se comprobó la existencia de una diplejía facial bilateral. El déficit bilateral del séptimo par craneal posee una etiología distinta al déficit unilateral. En estos casos, la ausencia de asimetría facial puede dificultar el diagnóstico, por lo que la TC de alta resolución y el estudio electromiográfico son útiles para su detección (AU)


Although traumatic injury of the facial nerve is a relatively common condition in neurosurgical practice, bilateral lesions related to fracture of temporal bones are seldom seen. Were port the case of a 38-year-old patient admitted to Intensive Care Unit after severe head trauma requiring ventilatory support (Glasgow Coma Scale of 7 on admission). A computed tomography (CT) scan confirmed a longitudinal fracture of the right temporal bone and a transversal fracture of the left. After successful weaning from respirator, bilateral facial paralysis was observed. The possible aetiologies for facial diplegia differ from those of unilateral injury. Due to the lack of facial asymmetry, it can be easily missed in critically ill patients, and both the high-resolution CT scan and electromyography studies can be helpful for correct diagnosis (AU)


Assuntos
Humanos , Masculino , Adulto , Paralisia Facial/etiologia , Traumatismos Craniocerebrais/complicações , Fratura da Base do Crânio/complicações , Traumatismos do Nervo Facial/complicações , Cuidados Críticos/métodos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...