Una miniplaca de titanio en comparación a dos miniplacas de titanio para fracturas de ángulo mandibular favorables y aisladas / One miniplate or two mini plates in the fixation of favorable and isolated mandibular angle fractures

RESUMEN: Introducción: Las fracturas mandibulares producen serias comorbilidades, alteraciones en la función, calidad de vida entre otros. Existen distintas alternativas quirúrgicas en las fracturas favorables de ángulo mandibular, siendo las más utilizadas las técnicas de estabilización mediante miniplacas de titanio. No existe consenso sobre si es más efectivo y seguro utilizar una o dos miniplacas de titanio. Métodos: Realizamos una búsqueda en Epistemonikos, la mayor base de datos de revisiones sistemáticas en salud, la cual es mantenida mediante el cribado de múltiples fuentes de información, incluyendo MEDLINE, EMBASE, Cochrane, entre otras. Extrajimos los datos desde las revisiones identificadas, analizamos los datos de los estudios primarios, realizamos un metanálisis y preparamos una tabla de resumen de los resultados utilizando el método GRADE. Resultados y conclusiones: Identificamos 7 revisiones sistemáticas que en conjunto incluyeron 17 estudios primarios, de los cuales 3 son ensayos aleatorizados. Concluimos que el tratamiento de estabilización mediante una miniplaca de titanio probablemente disminuye el riesgo de paresia facial. Por otro lado, el uso de una miniplaca podría aumentar el riesgo de dehiscencia de la herida quirúrgica, disminuir el riesgo de reintervención quirúrgica y podría resultar en poca o nula diferencia en el riesgo de maloclusión, pero la certeza de la evidencia es baja. No está claro si el uso de una en comparación con dos miniplacas de titanio reduce el riesgo de infección y parestesia ya que la certeza de la evidencia disponible es muy baja.

ABSTRACT: Introduction: Mandibular fractures produce severe comorbidities, functional alterations, changes in the quality of life, among others. There are different surgical alternatives for favorable mandibular angle fractures; the most used is the stabilization techniques using titanium miniplates. There is no consensus on which it is more effective and safe; use one or two titanium miniplates. Methods: We searched in Epistemonikos, the largest database of systematic reviews in health, which is maintained by screening multiple information sources, including MEDLINE, EMBASE, Cochrane, among others. We extracted data from the systematic reviews, reanalyzed data of primary studies, conducted a meta-analysis and generated a summary of findings table using the GRADE approach. Results and conclusions: We identified seven systematic reviews that included 17 primary studies, in which three were randomized trials. We conclude that stabilization treatment with a titanium miniplate probably reduces the risk of facial paresis. On the other hand, the use of a miniplate could increase the risk of dehiscence of the surgical wound, decrease the risk of reoperation, and could result in little or no difference in the risk of malocclusion, but the certainty of the evidence is low. It is not clear whether the use of one compared to two titanium miniplates reduces the risk of infection and paresthesia since the certainty of the available evidence is very low.

Transbuccal versus transoral approach for management of mandibular angle fractures: a prospective, clinical and radiographic study

OBJECTIVES: We compared the transbuccal and transoral approaches in the management of mandibular angle fractures. MATERIALS AND METHODS: Sixty patients with mandibular angle fractures were randomly divided into two equal groups (A, transoral approach; group B, transbuccal approach) who received fracture reduction using a single 2.5 mm 4 holed miniplate with a bar using either of the two approaches. Intraoperatively, the surgical time and the ease of surgical assess for fixation were noted. Patients were followed at 1 week, 3 months, and 6 months postoperatively and evaluated clinically for post-surgical complications like scarring, infection, postoperative occlusal discrepancy, malunion, and non-union. Radiographically, the interpretation of fracture reduction was also performed by studying the fracture gap following reduction using orthopantomogram tracing. The data was tabulated and subjected to statistical analysis. A P-value less than 0.05 was considered significant. RESULTS: No significant difference was seen between the two groups for variables like surgical time and ease of fixation. Radiographic interpretation of fracture reduction revealed statistical significance for group B from points B to D as compared to group A. No cases of malunion/non-union were noted. A single case of hypertrophic scar formation was noted in group B at 6 months postsurgery. Infection was noted in 2 patients in group B compared to 6 patients in group A. There was significantly more occlusal discrepancy in group A compared to group B at 1 week postoperatively, but no long standing discrepancy was noted in either group at the 6 months follow-up. CONCLUSION: The transbuccal approach was superior to the transoral approach with regard to radiographic reduction of the fracture gap, inconspicuous external scarring, and fewer postoperative complications. We preferred the transbuccal approach due to ease of use, minimal requirement for plate bending, and facilitation of plate placement in the neutral mid-point area of the mandible.

A Correlation between Mandibular Angle Fracture and the Mandibular Third Molar

A Study of Correlation Between Mandibular Angle Fracture and the Mandibular Third Molar

PURPOSE: The aim of this study is to analyze the correlation between incidence of mandibular angle fracture and eruption state of mandibular third molar using clinical and radiographic findings. MATERIALS AND METHODS: The data were obtained from the clinical and radiographic records of 205 patients who visited the Department of Oral and Maxillofacial Surgery, Chonbuk National University Hospital for treatment of the mandibular fracture. Panoramic radiographies were taken for radiographic examination and the mandibular third molars were classified according to age, gender, position and eruption state. Data were analyzed by a chi-square statistics. RESULTS: In this study, the incidence of mandibular angle fracture had a tendency to be greater when a mandibular third molar was present(p>0.05), but there was not a statistically significant difference. Of the 255 cases with a mandibular third molar, 67 had an angle fractures. Of the 155 cases without a mandibular third molar, 138 had not angle fracture. And the incidence of mandibular angle fracture was high at class BII(by Pell & Gregory system) (p<0.05). CONCLUSION: Although there was not a statistically significant difference, mandibular third molar was more susceptible to mandibular angle fracture. When the reduction of mandibular angle fracture, it was recommended that mandibular third molar should be extracted especially in case of pericoronitis, periodontitis and other infections.

Effective reduction of mandibular angle fracture with mini-implant; case report

In an open reduction of the mandibular angle fracture, it is crucial to approximate each fracture segment as closer as possible for the reduction of the healing period. In this case report, we proposed a new technique for the mandibular angle fracture. This was designed to minimize the gap between two separated segments using mini-implants and surgical wires. Mini-implants were placed around the fracture line, followed by wire ligation to minimize the fracture gap. And then internal fixation was easily employed with plates and screws. The advantages of this technique were reduced time for operation, the promotion of healing, rapid functional recovery, and few complications.

The influence of mandibular third molar on mandibular angle fracture

0.05). In the extracted or non extracted of mandibular third molar, the post operative infection showed no statistical significant difference(P>0.05). With the results mentioned above, mandibular third molar was significantly more susceptible to mandibular angle fracture. In the reduction of mandibular angle fracture, it was recommended that mandibular third molar should be extracted especially in case of pericoronitis, periodontitis and other infections.

Treatment of mandibular angle fractures with single non-compression miniplate: Clinical study

Management of the Third Molar Tooth in Mandibular Angle Fracture

The management of the third molar tooth in mandibular angle fracture is still controversial. Retrospective analysis of 197 cases of mandibular angle fractures associated with third molar tooth was undertaken. Selective prophylactic extraction of the third molar teeth were undertaken in 66 cases. The third molar teeth were retained in 131 fractures. The indication of extraction of the third molar teeth in mandibular angle fracture were as follows: 1) interfering with reduction of the fracture; 2) excessive mobility; 3) exposure of tooth root due to distraction of the fracture; 4) fractured teeth; 5) severely carious tooth 6) infected supporting structure. There were no significant differences between the complication rate in the "tooth removed" group and "tooth retained" group. Complications were minimal. Therefore proper management of the third molar tooth in mandibular angle fracture will minimize complication.

The Use Of Bone Reduction Forceps For Reduction And Fixation Of Mandibular Angle Fractures

Until now, many kinds of treatment modalities for mandibular angle fractures have been proposed. about among them, the semi-rigid fixation using miniplates has become a most popular procedure due to its simplicity and good clinical results in nowadays. When we use miniplates according to Champy's ideal osteosynthesis line principles for mandibular angle fracture treatment, we generally perform reduction and fixation procedures under the condition of maxillomandibular fixation(MMF) using arch-bars. But in so doing, due to various reasons, we occasionally observe gapping or torqueing of inferior border of mandibular angle after completion of miniplate fixation. In contrast to MMF state, we can observe intimate reduction of inferior border of mandibular angle due to compressive force and gapping of superior border due to tensile forces during wide mouth opening state. So we developed a new technique which uses bone reduction forceps(or modified towel clips) as a temporary fixation device during wide mouth opening state for intimate reduction and stability along the entire fracture line. By applying this new technique for mandibular angle fracture treatment, it was possible for us to perform easy and accurate miniplate fixation for last 1 year period with clinical success. This article presents some case reports of mandibular angle fracture patients who were treated by this new technique and discussions about the reliability and advantages of this technique.