OBJECTIVE: To assess the prevalence of various frontal sinus fractures (FSF) and examine the relationships between these fractures, types of treatments, and potential complications.
METHODS: A retrospective study was carried out in King Saud Medical City, Riyadh, Saudi Arabia. The study analyzed the records of patients who were diagnosed and treated with FSF from 2011-2021. Files with missing documents or incomplete treatment were excluded. The retrieved data includes: patients age, gender, types, locations, treatment, and complications of FSF. Data was analyzed by the statistical Package for the Social Sciences Statistics, version 23.0 using descriptive statistics and Chi-square test.
RESULTS: A total of 72 cases were included, 94.4% males and 5.6% females. Road traffic accidents were the common cause of trauma (91%). Frontal sinus fractures were unilateral in 59.7% and associated other injuries in 80.6% of cases. Anterior table fractures were the largest proportion (58.3%), followed by anterior and posterior table (37.5%). The carried out surgical procedures were obliteration (23.9%), cranialization and obliteration (23.9%), and fixation only (52.2%). The post-operative complications were categorized into; neurological (22.2%), ophthalmic (15.3%), infection (2.8%), and deformity (16.7%). Anterior and posterior table had the highest percentage among these categories.
CONCLUSIONS: Frontal sinus fractures were mostly required surgical treatment (63.9%) and post-operative complications occurred especially the neurological and ophthalmic. We recommend studies on the association of complications and different types of obliteration materials.

BACKGROUND: Frontal sinus injuries are relatively rare among facial bone traumas. Without proper treatment, they can lead to fatal intracranial complications, including meningitis or brain abscesses, as well as aesthetic and functional sequelae. The management of frontal sinus injuries remains controversial, with various treatment methods and outcomes being reported. This article describes the clinical characteristics, surgical methods, and outcomes among 17 patients who underwent surgery for frontal sinus injury and related complications.
METHODS: We retrospectively included 17 patients who underwent surgery for frontal sinus injury and its related complications at the Kangwon National University Hospital between July 2010 and September 2021. Among them, six underwent simple open reduction and fixation of the anterior wall, eight underwent sinus obliteration, and three underwent cranialization. Two patients who underwent sinus obliteration died due to infection-related complications. The patient who underwent cranialization reported experiencing chronic headache and expressed dissatisfaction regarding the esthetic outcomes of the forehead. Except for these three patients, the other patients achieved satisfactory esthetic and functional recovery.
CONCLUSIONS: Active surgical management of frontal sinus injuries is often required owing to the various complications caused by these injuries; however, several factors, including the fracture type, clinical presentation, related craniomaxillofacial injury, and medical history, should be considered while formulating the treatment plan. Surgical treatment through the opening of the frontal sinus should be actively considered in patients with severely damaged posterior wall fractures and those at risk of developing infection.

UNASSIGNED: Langenbach (1820) first described paranasal sinus mucoceles under the name of hydatids. Roulette (1909) introduced the name mucocele. Paranasal sinus mucocele is the accumulation of mucus secretions and exfoliated epithelium in the sinuses, causing enlargement of the sinus walls. It is considered a cystic, dilatation-eroding lesion. However, the mucocele often occurs as a localized mass, causing bone erosion and displacement of surrounding structures. If left untreated, a nearby mucocele in the brain can become infected and lead to death. Frontal sinuses are often involved; sphenoid, ethmoid, and maxillary mucoceles are rare. Mucoceles usually result from sinus ostium obstruction due to infection, fibrosis, inflammation, trauma, surgery, or obstruction by tumors such as osteomas. Of all causes, patients most often present with cranio-facial trauma (82.97%) and the most common mechanism is human aggression (90.85%).
UNASSIGNED: This 30-year-old male patient presented with a frontal head swelling of one year duration that started after he sustained a stick injury on the frontal head one year ago, and he has an associated frontal headache for one year. There was a 4x5cm frontal, firm, palpable, non-tender lesion extending from the nasion to the frontal head. On the brain CT scan, there was frontal bone erosion at multiple sites with partial frontal sinus opacity, an externally growing mass, and an old frontal sinus fracture noted. Bifrontal craniotomy and bilateral frontal sinus cranialization were done, and the patient was discharged on the third day and seen a month later with complete improvement from headache and swelling.
UNASSIGNED: The incidence and pathophysiology of posttraumatic frontal sinus mucoceles are not known yet. The surgical management of mucocele demand a multidisciplinary team involving neurosurgeons, ear nose and throat surgeons, oral and maxillofacial surgeons, ophthalmologists and plastic and reconstructive surgeons. By treating the primary cause, frontal sinus fracture at contact, this case report aims to raise awareness of and prevent frontal sinus mucocele and related complications.

Anterior skull base lesions could be reached by different approaches (subfrontal, pterional, interhemispheric, etc.). In selected cases, the frontal trans-sinusal approach is an effective alternative to conventional techniques.
We present our technique to perform a frontal trans-sinusal approach in a patient affected by a large olfactory groove meningioma.
The frontal trans-sinusal approach allows to approach safely lesions of the median anterior cranial fossa. This approach provides lower brain retraction, easier access to olfactory grooves, and earlier tumor devascularization. However, it remains limited to patients with large-sized frontal sinuses and entails some postoperative risks such as mucocele or CSF leak.

How often do intracranial epidermoid cysts occur?Is a coronary incision necessary?What are the steps of the procedure, difficulties encountered, and process for circumventing those difficulties?What is the follow-up protocol and outcome?

The aim of this study was to evaluate the long-term results and to evaluate the validity of the treatment algorithm that can be safely applied in dfrontal sinus fractures. All patients were evaluated in terms of late-term contour deformity and further craniometric analysis for measurement of maximum amount of displacement, fracture surface area (mm2) and the maximum angulation of the fracture (degree) were done. 125 patients (101 male, 24 female) with frontal sinus fractures with an average age of 22.4 years (range,17-66 years) were reviewed. All patients with isolated anterior table fractures without displacement were followed up on conservative basis. 33 patients with anterior table fractures with displacement and 39 patients with anterior and posterior table fractures were also followed on conservative basis without surgical intervention. The cut-off value of the maximum amount of displacement was confirmed to be 4.5 mm in prediction of late-term contour deformities (p < 0.001). The maximum amount of displacement was decreased by an average of 1.8 mm at late-term. Apart from the standard protocols, within the limitations of the study it seems that isolated anterior table fractures with a maximum amount of displacement of less than 4.5 mm can be treated conservatively without leading to contour deformities. CSF leakage in the acute setting might not always require cranialization and this may spontaneously resolve within 10 days. Cranialization should be considered whenever CSF leakage lasts longer than 10 days.

Objective  We present our experience in the management of frontal bone fractures using the previously described radiologic classification of frontal bone fractures. Methodology  A retrospective study was conducted, which reviewed the medical records and computed tomographic (CT) scan images of patients with frontal bone fracture from January 2016 to February 2019. Patients with complete medical records and a follow-up of minimum 1 year were included in the study. Demographic details, mechanism of injury, associated intracranial injuries, maxillofacial fractures, management, and complications were analyzed. CT scan images were used to classify the frontal bone fractures using the novel classification given by Garg et al (2014). The indications for surgical treatment were inner table frontal sinus fracture with cerebrospinal fluid (CSF) leak, intracranial hematoma with significant mass effect requiring surgical evacuation, and outer table comminuted fracture that is either causing nasofrontal duct obstruction or for cosmetic purpose. Results  A total of 55 patients were included in the study. Road traffic accidents as the commonest cause of frontal bone fractures. The most common fracture pattern was type 1 followed by type 5 and depth B followed by depth A. Four patients presented with CSF rhinorrhea. CSF rhinorrhea was more frequent with fracture extension to the skull base (depth B, C, D), which was statistically significant ( p  < 0.001). Conclusion  Frontal bone fracture management has to be tailor-made for each patient based on the extent of the fracture, presence of CSF leak, and associated intracranial and maxillofacial injuries.

Although frontal sinus fractures are relatively uncommon, the potential for long-term morbidity is significant. Management strategies remain controversial due to a lack of strong clinical evidence. Despite a paucity of strong literature, a logical treatment algorithm is presented based on the structural integrity of three anatomic parameters: anterior table, frontal sinus outflow tract, and the posterior table/dura. The literature supports a paradigm shift from open surgical management to a more conservative treatment algorithm emphasizing observation and minimally invasive endoscopic techniques. Long-term follow-up for complex frontal sinus injuries is critical.

Background  Cranialization or obliteration is widely accepted intervention for traumatic or intentional breach of the frontal sinus. These techniques, however, result in the loss of frontal sinus function and have a persistent risk of cerebrospinal fluid (CSF) leak and mucocele. Compartmentalization is an open technique for repair of the frontal sinus using allograft onlay and a vascularized periosteal flap that allows for preservation of frontal sinus function. Objective  The main objective of this article is to describe the technique for compartmentalization of the frontal sinus and demonstrate its efficacy and complication rate with an early patient series. Methods  Our technique includes the following key components: harvesting of a pedicled periosteal flap, frontal sinus repair through a bifrontal craniotomy with minimal mucosa removal, ensuring the patency of the nasal frontal outflow tract, and separation of the brain from the frontal sinus with a dual layer of periosteum and allograft. All cases of frontal sinus repair using the compartmentalization technique at our institution were reviewed. Charts were reviewed for CSF leak, mucocele, and other complications. Results  Twenty-three patients underwent the described frontal sinus repair technique 17 for tumor and 6 for trauma. There were no CSF leaks and no mucoceles. One patient experienced postoperative anemia and a \"parameningeal reaction\" that were managed with a short course of antibiotics. Conclusions  Compartmentalization, due to its sinus preservation and low complication rate, represents a meaningful step forward in neurosurgical technique for open frontal sinus repair. However, long-term outcomes are necessary to fully evaluate risk of mucocele.

Main management for the frontal sinus fracture is using the pericranial flap. Pericranial flaps based on the supraorbital and supratrochlear vasculature have previously been used with significant success for the separation of intracranial and extracranial spaces after major trauma. Defect closure was modified due to lack of the frontal periosteum; the graft was made from the temporal side of periosteum to make primary periosteal flap longer. Defect closure could be optimum. Evaluation for 6 months showed a significant improvement without major complications. In this article, we propose a new modification technique as one of promising alternatives.