Is the Erich arch bar the best intermaxillary fixation method in maxillofacial fractures? A systematic review

BACKGROUND: Intermaxillary fixation is used to achieve proper occlusion during and after oral and maxillofacial fracture surgery. The aim of this systematic review was to compare Erich arch bar fixation with other intermaxillary fixation methods in terms of the operating time, safety during installation, oral health maintenance and occlusal stability. MATERIAL AND METHODS: An electronic online search was conducted of the Scirus, PubMed, Ovid, Cochrane Library and VHL databases. A clinical trial dating from the inception of the data bases until August 2013 was selected. Studies that compared Erich arch bars with other intermaxillary fixation methods in patients older than 18 years-old were included. The studies were assessed by two independent reviewers. The methodological quality of each article was analyzed. RESULTS: Nine hundred and twenty-five manuscripts were found. Seven relevant articles were analyzed in this review. The risk of bias was considered moderate for four studies and high for three clinical trials. CONCLUSIONS: There is not enough evidence to conclude that the Erich arch bar is the best intermaxillary fixation method in cases of oral and maxillofacial fractures

Tratamiento de la pseudoartrosis recalcitrante de húmero en pacientes de edad avanzada / Treatment of recalcitrant humeral nonunion in elderly patients

Fundamento: La pseudoartrosis de húmero, cuando varios intentos previos para su curación ya han fracasado, es un reto. Si asociamos la osteoporosis severa propia de pacientes ancianos, las dificultades se multiplican. El objetivo es estudiar la mejor opción para esta situación. Material y método: Analizamos la evolución de cinco pacientes con los siguientes criterios de inclusión: pseudoartrosis de la diáfisis del húmero intervenida sin éxito previamente al menos en dos ocasiones y/o haber permanecido en dicha situación más de 18 meses, asociado a osteoporosis severa en personas mayores de 65 años. Fueron tratados mediante desbridamiento del foco y estabilización con placas bloqueadas asociando injerto óseo. Resultados: Todos los casos consolidaron tras un seguimiento medio de 19 meses (8-36 meses). Conclusiones: En la pseudoartrosis de húmero en ancianos con hueso osteoporótico, las placas bloqueadas han demostrado que proporcionan una fijación estable y duradera, superior a la de las placas tradicionales a compresión. En nuestra experiencia hay que considerarlas también como una opción válida en situaciones de máxima precariedad ósea y biológica, como sucede en las pseudoartrosis recalcitrantes(AU)

Background: Humeral nonunion that persists through various unsuccessful attempts at management, presents a real challenge. When combined with severe osteoporosis in elderly patients, the problems only increase. This study aims to investigate the best option for treating this combination of factors. Materials and method: This study analyses the outcomes of five patients with the following inclusion criteria: nonunion of the humeral diaphysis, after at least two unsuccessful interventions and/or after a period of 18 months or more, associated with severe osteoporosis in patients aged over 65. All cases were treated by debridement of the site of nonunion and stabilisation with locking plates and bone graft. Results: All cases consolidated after a mean follow-up period of 19 months (8-36 months). Conclusions: In cases of humeral nonunion in elderly patients with osteoporotic bones, locking plates have been proven to provide consistent, long-term stability, with better results than traditional compression plates. The authors consider that locking plates should be considered as a valid option in cases of extreme bone and biological instability, as is the case in recalcitrant humeral nonunion (AU)

Técnica de impresión funcional para sobredentaduras con aditamentos tipo broche elástico (ERA) / Functional impression technique for overdentures with elastic clip-type additions (ERA)

Se describe una técnica de impresión funcional con arrastre de cofias directas que simplifica la aplicación de sobredentaduras con aditamentos tipo broche elástico, como el ERA. Se analizan brevemente los factores involucrados en la planificación de estos casos como la relación de los pilares entre los dos maxilares, número y distribución de los dientes pilares en el arco dental y la utilización de implantes dentales.