Acesso borboleta para tratamento cirúrgico de fratura de osso frontal: relato de caso / Butterfly wing-type of incision for surgical treatment of front bone fracture: case report

Quando comparado aos demais ossos da face, o osso frontal é raramente acometido por fraturas, sendo essa menor ocorrência relacionada à sua maior resistência. Nosso estudo relata um caso clínico de paciente do gênero masculino, 27 anos, vítima de acidente motociclístico, encaminhado ao Hospital da Restauração - Governador Paulo Guerra com fraturas complexas do terço superior e médio da face. Dessa forma, o objetivo deste estudo é demonstrar a resolução cirúrgica dessas fraturas de face, por meio da utilização do acesso supraciliar com incisão em "asa de borboleta" e infraorbital possibilitando a redução e fixação. Todas as abordagens cirúrgicas para redução do osso frontal têm como objetivo promover respostas estéticas, restaurar a função e prevenir complicações cirúrgicas, não dependendo apenas da gravidade da fratura, mas também, do paciente e da preferência do cirurgião. O acesso supraciliar em "asa de borboleta" é feito a partir de uma incisão linear na região da glabela, com extensões laterais para as sobrancelhas. Dessa maneira ele garante boa visualização e exposição do campo operatório com acesso direto e simples. Por fim, o acesso borboleta mostrou-se uma boa opção de abordagem para fraturas da parede anterior do osso frontal, apesar de demonstrar desvantagem estética na ponte nasal segundo a literatura, no presente caso essa filosofia não é compartilhada, já que a "camuflagem" da incisão linear na ruga nasal mostrou-se esteticamente satisfatória... (AU)

Autopsy or anatomical dissection: evidence of a craniotomy in a 17th-eighteenth century burial site (Ravenna, Italy).

Surgical procedures undergone in life, autopsies and anatomical preparations can all leave clearly identifiable traces on human skeletal remains. Several studies on skeletons from archeological contexts have identified traces of these practices. However, the distinction between medical/forensic autopsy and anatomical dissections for scientific research can be challenging. We report the case of a middle-aged female skeleton from the cemetery of the church of San Biagio (Ravenna, Italy), dating back to the 17th-19th centuries, that shows signs of a complete craniotomy. In an attempt to clarify the reason for this practice, we analyzed all pathological and non-pathological markers on the skeleton. We carried out anthropological analyses and osteometric measurements to determine the biological profile and the cranial capacity of the individual. Paleopathological investigation and analyses of traumatic injury patterns were carried out using both a morphological and a microscopic approach. While we observed that the craniotomy was performed with a rip saw, we identified perimortem blunt force trauma to the frontal bone and an osteolytic lesion on the inner surface of the frontal bone. No other pathology was recognizable on the skeleton. Our differential diagnosis confidently proved that the craniotomy was due to an autoptsy procedure and was not the result of an anatomical dissection. We believe that, among other possible reasons, failed surgery could likely be the motive behind the ordering of the autopsy.

Pediatric Frontal Bone and Sinus Fractures: Cause, Characteristics, and a Treatment Algorithm.

BACKGROUND: The purpose of this study was to assess the incidence, cause, characteristics, presentation, and management of pediatric frontal bone fractures. METHODS: A retrospective cohort review was performed on all patients younger than 15 years with frontal fractures that presented to a single institution from 1998 to 2010. Charts and computed tomographic images were reviewed, and frontal bone fractures were classified into three types based on anatomical fracture characteristics. Fracture cause, patient demographics, management, concomitant injuries, and complications were recorded. Primary outcomes were defined by fracture type and predictors of operative management and length of stay. RESULTS: A total of 174 patients with frontal bone fractures met the authors' inclusion criteria. The mean age of the patient sample was 7.19 ± 4.27 years. Among these patients, 52, 47, and 75 patients were classified as having type I, II, and III fractures, respectively. A total of 14, 9, and 24 patients with type I, II, and III fractures underwent operative management, respectively. All children with evidence of nasofrontal outflow tract involvement and obstruction underwent cranialization (n = 11). CONCLUSIONS: The authors recommend that type I fractures be managed according to the usual neurosurgical guidelines. Type II fractures can be managed operatively according to the usual pediatric orbital roof and frontal sinus fracture indications (e.g., significantly displaced posterior table fractures with associated neurologic indications). Lastly, type III fractures can be managed operatively as for type I and II indications and for evidence of nasofrontal outflow tract involvement. The authors recommend cranialization in children with nasofrontal outflow tract involvement. CLINICAL QUESTION/LEVEL OF EVIDENCE: Risk, II.

Complications of craniofacial surgery using the ultrasonic-assisted pinned resorbable system: A prospective report with a minimum follow-up of 30 months.

Several resorbable fixation systems are used for osteosynthesis in craniofacial surgery. Recently, ultrasonic-assisted pinned resorbable systems have been introduced; however, few studies have described the associated complications during the long-term follow-up until complete resorption. In this study, we investigated the complications of craniofacial surgery using the ultrasonic-assisted pinned resorbable system with a follow-up of at least 30 months. Among patients who underwent craniofacial surgery using a commercially available ultrasonic-assisted pinned resorbable system between 2014 and 2016, those with follow-up visits for at least 30 months were included in this study. We investigated the development of complications such as local infection, exposure of the device, and reoperation related to the implant. Twenty-four patients aged 6 months to 69.4 years (median: 3.5 years) were followed up for more than 30 months. None of the patients required reoperation regardless of implants. Further, no infection or device exposure was seen among all patients. However, two patients aged 6 and 22 months who underwent cranioplasty for craniosynostosis and another patient aged 148 months who underwent cranioplasty for cranial defect exhibited plate-related bulging in the scalp during the course of resorption between 7 and 12 months of follow-up. The bulges were characterized by swelling without pain or redness and resolved spontaneously within 18 months of follow-up, which was considered to occur after complete absorption of the plate. In conclusion, subcutaneous swelling is related to resorbable plates and has a benign clinical course. We recommend that patients be informed of this phenomenon preoperatively to relieve their anxiety.

Immune status of patients with frontal basilar trauma having bc "syntekost" applied in the surgical treatment. report 1. the state of the systemic cellular and humoral immunity factors of patients with frontal basilar trauma in the acute posttraumatic period prior to surgical treatment.

OBJECTIVE: Introduction: At present biocomposite materials are used in the surgical treatment of frontal bone fracture. They improve osteogenesis, reduce the number of complications. Immunologic aspects of application of these materials are studied insufficiently, therefore this report presents the results of immunoassay of patients with frontal bone fracture in the proximate posttraumatic period before implanting preparation "Syntekost". The aim: To define the role of immune mechanisms in the realization of the biocomposite material's positive influence on the development of effective posstraumatic rehabilitation schemes. PATIENTS AND METHODS: Materials and methods: 16 patients with frontal bone fracture (FBF) were examined on admission to the Otolaryngology Clinics of Vinnitsa Region Hospital. Additionally, 10 patients of the similar age were examined as a control group. The content of cells with markers of surface antigens-CD3,14,16,20,25, concentration of immunoglobulins of classes M,G,A,E, С4 complement component and lactoferrin was determined in blood. Immunoenzyme methods were applied. Nonparametric Wilcoxon - Mann - Whitney test, computer programme WIN Pepi were used for statistical measurements. RESULTS: Results: A decrease in the level of IgM in comparison with practically healthy donors and an increase in the concentration of lactoferrin were identified as humoral immunity factors of patients with frontal basilar trauma. The most significant deviation in the peripheral blood cellular makeup in CD-markers was an increase in cells with markers CD14 and CD16. CONCLUSION: Conclusions: The level of cells and prodefensin-lactoferrin that maintain inborn immunity increases and the concentration of coarse defensive protein decreases in the initial period after frontal bone fracture, which must be taken into consideration during post-surgical treatment.

Pott's puffy tumor por Actinomyces tras trauma craneal leve / Pott's puffy tumor by Actinomyces after minor head trauma

El Pott's puffy tumor (PPT) es una rara entidad que en la actualidad representa un abombamiento del cuero cabelludo asociado a un absceso subperióstico y a una osteomielitis craneal, pudiendo acompañarse o no de infección intracraneal. Suele asociarse a la sinusitis frontal, tratándose de una complicación típica, aunque poco frecuente de la misma. Por su parte las osteomielitis causadas por Actinomyces son raras y suelen tener lugar a nivel mandibular, no encontrándose apenas casos de osteomielitis craneal causada por este género bacteriano, en especial tras traumatismo craneoencefálico. Presentamos un caso especialmente poco usual al tratarse de un PPT frontal tras traumatismo cerrado, con componente intracraneal y en el que tras cirugía se aisló Actinomyces como copartícipe de dicha infección, junto con Fusobacterium y Propionibacterium

Pott's puffy tumour (PPT) is a rare entity that involves scalp swelling associated with subperiosteal abscess and cranial osteomyelitis, occasionally accompanied by intracranial infection. It is usually affiliated with frontal sinusitis, which is a typical but infrequent complication. On the contrary, Osteomyelitis by Actinomyces is rare and usually occurs at the mandibular level, with very few cases of cranial osteomyelitis caused by this bacterial specie, especially after traumatic brain injury. We report an exceptionally unusual case of a PPT frontal tumor after blunt trauma (closed head injury), with an intracranial lesion whereby Actinomyces was isolated after surgery, as a co-participant of the mentioned infection besides Fusobacterium and Propionibacterium

Violence in the Early Bronze Age. Diagnosis of skull lesions using anthropological, taphonomic and scanning electron microscopy techniques.

In this paper we present the study of a skull belonging to a young male from the Italian Bronze Age showing three perimortem injuries on the frontal and parietal bones; the peculiarity of the frontal injury is represented by its singular shape, which may be indicative of the weapon that caused the lesion. The aim of the present study is to examine the traumatic evidence in relation to possible etiological factors, in order to attempt to establish if the lesion occurred peri or post-mortem, and to evaluate if these traumatic injuries could be interpreted as an evidence of interpersonal violence, by combining anthropological, taphonomic and ESEM investigations. The combination of multidisciplinary methods of study can provide important new insights into inter-personal violence.

The Diagnosis and Management of Facial Bone Fractures.

Appropriate medical care for a patient with a facial fracture can not only optimize aesthetic outcomes but also prevent the potential morbidity and mortality of delayed treatment. In this article, we focus on the clinical presentations, physical examination findings, diagnostic imaging, consultations, and follow-up that patients with facial fractures need related to their emergency department management. Specifically, we address the nuances of evaluating frontal, orbital, nasal, maxillofacial, and mandibular fractures.

Application of resampling techniques to improve the quality of survival analysis risk curves for human frontal bone fracture.

BACKGROUND: In automotive events, head injuries (skull fractures and/or brain injuries) are associated with head contact loading. While the widely-used head injury criterion is based on frontal bone fracture and linear accelerations, injury risk curves were not developed from original datasets. OBJECTIVES: Develop skull fracture-based risk curves for using previously published data and apply resampling techniques to assess their qualities. METHODS: Force, deflection, energy, and stiffness data from thirteen human cadaver head impact tests were used to develop risk curves using parametric survival analysis. Injuries occurred to all specimens. Data points were treated as uncensored. Variables were ranked, and the variable best explaining the underlying fracture response was determined using the Brier Score Metric (BSM). The qualities of the risk curves were determined using normalized confidence interval sizes. Statistical resampling methods were used to assess the quality of the risk curves and the impact of the sample size by conducting 2000 simulations. Sample sizes ranged from 13 to 26. FINDINGS: The Weibull distribution was optimal for all the response variables, except deflection (log-logistic). The quality of the risk curves was the highest for deflection. This variable best explained the underlying head injury response, based on BSM. Improvements in the quality of the risk curves were achieved with additional samples of force and deflection (<13), while energy and stiffness variables required more size. Individual risk curves are given. INTERPRETATION: These probability curves from head contact loading add to the understanding skull fractures and can be used to improve safety in injury producing environments.

Alternativas de tratamento para reconstrução de osso frontal: uma série de casos / Treatment alternatives for frontal bone reconstruction: a series of cases

Objetivo: este artigo se propõe a discutir as diferentes modalidades de tratamento de fraturas de osso frontal, demonstradas em uma série de casos clínicos. Relato de casos: três pacientes de gênero variado e com diferentes etiologias de trauma, foram submetidos à cranioplastia, devido a fraturas das corticais externa e interna do osso frontal (além de fixação de outras fraturas de face, em dois dos casos). Nessa série, são apresentados tratamentos com uso de prótese customizada de polimetilmetacrilato, idealizada sobre um protótipo, reconstrução da bossa frontal a partir de telas de titânio e ainda redução óssea com fixação por meio de placas e parafusos. Em todos os casos apresentados, os resultados estéticos e funcionais foram satisfatórios. Considerações finais: baseado no que foi discutido, entendemos que o planejamento deve ser realizado de forma individual e a decisão por qualquer técnica vai depender da gravidade e da extensão da fratura. Para tanto, é necessária uma avaliação criteriosa do caso em questão.(AU)

Objective: This study aims to discuss the different treatment modalities of frontal bone fractures presented in a series of clinical cases. Case report: Three patients of different genders and with different trauma etiologies were subjected to cranioplasty due to fractures of the external and internal cortical of the frontal bone (besides the fixation of other facial fractures, in two of the cases). This series presents treatments using a custom polymethylmethacrylate prosthesis designed on a prototype, the reconstruction of the frontal vault from titanium meshes, and bone reduction with fixation using plates and screws. In all cases presented, the aesthetic and functional results were satisfactory. Final Considerations: The study discussions allow understanding that planning should be performed individually and the decision for any technique will depend on the severity and extent of the fracture. Therefore, a careful assessment of the case in question is required.(AU)

The Supratarsal Approach for Correction of Anterior Frontal Bone Fractures.

BACKGROUND: To approach isolated anterior frontal bone fracture, coronal incision is the common surgical access of choice. This approach has complications such as aesthetically undesirable scarring and alopecia along the incision line. An alternative approach to these fractures is through a supratarsal incision. The aim of the present study was to correct the frontal bone fracture, through supratarsal approach. METHODS: Six consecutive patients with frontal bone fracture were operated through supratarsal incision and evaluated regarding: patient cosmetic satisfaction, forehead contour, scarring, sensibility and motility in forehead and upper eyelids. RESULTS: Seven months (6-12) postoperatively, all the patients had normal mobility in the forehead and the upper eyelids and 17% (n = 1) had hypoesthesia of superior orbital nerve. The forehead contour was excellent in all patients. About 83% (n = 5) of the patients were very satisfied and 17% (n = 1) were satisfied with the surgical result. CONCLUSION: Correction of anterior frontal bone fracture through a supratarsal approach appears to be safe and offers a sufficient exposure to the frontal bone fracture correction with excellent contouring results and no noticeable scarring.

Frontal Bone Fracture Patterns Suggesting Involvement of Optic Canal Damage.

PURPOSE: Fracture of the frontal bone can be accompanied by damage to the optic canal. The present study uses finite element analysis to identify fracture patterns, suggesting the involvement of the optic canal. METHODS: Ten finite-element skull models were generated from computer tomography data of 10 persons. Then, dynamic analyses simulating collision of a 2-cm-radius brass ball to 6 regions on the frontal bone in the 10 models were performed. Fracture patterns presented by the frontal bone in the 60 experiments were observed, and all those involving the optic canal were selected. Commonalities of the selected fracture patterns were identified. RESULTS: Fracture of the optic canal was observed in 9 of the 60 patients. In all 9 patients, fracture existed on the anterior and posterior walls of the frontal sinus and on the superior orbital wall. CONCLUSION: When the anterior and posterior walls of the frontal sinus and the superior orbital wall are all broken, the optic canal is highly likely to be involved in the damage. When this pattern is observed in emergency examination, preventive decompression of the optic nerve should be considered to avoid potential occurrence of blindness.

Split Calvarial Graft and Titanium Mesh for Reconstruction of Post-Craniotomy Frontal Bone Defect.

BACKGROUND: The goal of cranioplasty is to achieve a lifelong, stable and structural reconstruction of the cranium covered by a healthy skin and scalp flap. We present two cases of large frontal bone defect following a accident. CASES: We describe the utilization of autogenous local split calvarial graft and titanium mesh for the reconstruction of the post trauma frontal bone defect. CONCLUSION: Cranioplasty using split calvarial bone grafting for restoring large cranial defects resulting from a trauma is a useful technique, and allows the surgeon to reconstruct a moderate to large cranial defect without rifting the inner cortical plate.

Treatment of calvarial defects by resorbable and non-resorbable sonic activated polymer pins and mouldable titanium mesh in two dogs: a case report.

BACKGROUND: To date, calvarial defects in dogs have traditionally been addressed with different types of implants including bone allograft, polymethylmethacrylate and titanium mesh secured with conventional metallic fixation methods. This report describes the use of an absorbable and non absorbable novel polymer fixation method, Bonewelding® technology, in combination with titanium mesh for the repair of calvarial defects in two dogs. The clinical outcomes and comparative complication using resorbable and non-resorbable thermoplastic pins were compared. CASE PRESENTATION: This report of two cases documents the repair of a traumatic calvarial fracture in an adult male Greyhound and a cranioplasty following frontal bone tumor resection in an adult female Cavalier King Charles Spaniel with the use of a commercially available titanium mesh secured with an innovative thermoplastic polymer screw system (Bonewelding®). The treatment combination aimed to restore cranial structure, sinus integrity and cosmetic appearance. A mouldable titanium mesh was cut to fit the bone defect of the frontal bone and secured with either resorbable or non-resorbable polymer pins using Bonewelding® technology. Gentamycin-impregnated collagen sponge was used intraoperatively to assist with sealing of the frontal sinuses. Calvarial fracture and post-operative implant positioning were advised using computed tomography. A satisfactory restoration of skull integrity and cosmetic result was achieved, and long term clinical outcome was deemed clinically adequate with good patient quality of life. Postoperative complications including rostral mesh uplift with minor associated clinical signs were encountered when resorbable pins were used. No postoperative complications were experienced in non-resorbable pins at 7 months follow-up, by contrast mesh uplift was noted 3 weeks post-procedure in the case treated using absorbable pins. CONCLUSIONS: The report demonstrates the innovative use of sonic-activated polymer pins (Bonewelding® technology) alongside titanium mesh is a suitable alternative technique for skull defect repair in dogs. The use of Bonewelding® may offer advantages in reduction of surgical time. Further, ultrasonic pin application may be less invasive than alternative metallic fixation and potentially reduces bone trauma. Polymer systems may offer enhanced mesh-bone integration when compared to traditional metallic implants. The use of polymer pins demonstrates initial potential as a fixation method in cranioplasty. Initial findings in a single case comparison indicate a possible advantage in the use of non-absorbable over the absorbable systems to circumvent complications associated with variable polymer degradation, further long term studies with higher patient numbers are required before reliable conclusions can be made.

Simplified Access for Reduction and Fixation of a Frontal Bone Fracture.

The frontal bone fractures occur very often in service units in oral and maxillofacial surgery. Bicoronal access is the most common for the surgical treatment of frontal bone fractures. However, patients are surprised when they receive notice that such invasive access will be made. This approach allows adequate visualization of the fracture site, but may be associated with complications, which can be avoided by the use of less invasive techniques. We describe an alternative approach that aims to minimize the complications of a coronal incision.

[Orbitofrontal bone reconstruction with cutting guides]. / Reconstruction orbito-frontale osseuse sur mesure par guides de coupes.

INTRODUCTION: Reconstruction of craniofacial defects due to traumatic injuries is a challenge for a reconstructive surgeon, given the functional impact, the aesthetic impact and the geometric complexity of the craniofacial skeleton. The use of cutting and repositioning guides enables a new approach from the craniofacial reconstruction with bone grafts on measure. We are presented to illustrate this technique the case of a patient. OBSERVATION: The patient was 50 years old, he presented a traumatic facial sequelar: a left frontal craniofacial deformation, an enlarged left orbit with enophthalmos and valgus left zygoma. The patient had a permanent diplopia, an important aesthetic and social gene impeding daily life. Surgical planning was performed for optimal care. We performed a cranioplasty frontotemporal by bone parietal duplication, osteotomy of zygoma and intra-orbital bone graft customized using cutting guides. The bone pieces were positioned with the repositioning books. DISCUSSION: This presentation illustrates a novel application of cutting guides. This technique has the advantage of using customized autologous bone. This is the gold standard, it requires surgical experience.

Ceramic-polylactide composite material used in a model of healing of osseous defects in rabbits.

The growing demand for various kinds of bone regeneration material has in turn increased the desire to find materials with optimal physical, chemical, and biological properties. The objective of the present study was to identify the proportions of ceramic and polylactide components in a bone substitute material prepared in collaboration with the Crystal Chemistry of Drugs Team of the Faculty of Chemistry at the Jagiellonian University, which would be optimal for bone regeneration processes. Another goal was to provide a histological analysis of the influence of a ceramic-polylactide composite on the healing of osseous defects in rabbits. The study was performed on laboratory animals (18 New Zealand White rabbits). The following study groups were formed: - group A (study group, 9 animals) - in this group we performed a histological analysis of healing with a ceramic-polylactide composite based on an 80/20 mix of hydroxyapatite and polylactide; - group B (study group, 9 animals) - in this group we performed a histological analysis of healing with a ceramic-polylactide composite with a reduced amount of hydroxyapatite compared to the previous group, i.e. in a ratio of 61/39; - group K (control, 18 animals) - the control group comprised self-healing, standardised osseous defects prepared in the calvarial bone of the rabbits on the contralateral side. In the assessment of histological samples, we were also able to eliminate individual influences that might have led to differentiation in wound healing. The material used in the histological analysis took the form of rabbit bone tissue samples, containing both defects, with margins of around 0.5 cm, taken 1, 3, and 6 months after the experiment. The osseous defects from groups A and B filled with ceramic-polylactide material healed with less inflammatory infiltration than was the case with control group K. They were also characterised by faster regression, and no resorption or osteonecrosis, which allowed for better regeneration of the bone tissue. A statistical analysis of the study results revealed the increased resorptive activity of the composite in group B, which may have been due to its higher polylactide content. Simultaneously, we observed that healing of osseous defects filled with ceramic-polylactide composites in 80/20 and 61/39 ratios was comparable.

Everting Fracture of Entire Frontal Bone: Management and Importance of Preliminary Reconstruction.

A 34-year-old woman with severe craniofacial trauma, which included eversion of the entire frontal bone, survived with high-quality functional and cosmetic results as a consequence of efficient and aggressive action by emergency technicians and physicians. Early preliminary steps of craniofacial reconstruction provided a structural foundation that facilitated this outcome.