Orbital Roof Research Articles

How I do it. 3D endoscopic treatment of metopic craniosynostosis through a single incision.

Endoscopic approaches for craniosynostosis are a growing field in pediatric neurosurgery. In metopic synostosis, previous reports for complete fronto-orbital remodeling have proposed an intervention with multiple incisions (bregmatic, tarsal, and preauricular) to open frontonasal and frontoethmoidal synostotic sutures, and orbital roof. We propose a technique to complete all these osteotomies with a unique incision anterior to the bregmatic fontanel under 3D endoscopic vision, and review possible complications, limits, and pitfalls. Under endoscopic assistance, a complete fronto-orbital remodeling could be completed with a unique incision without mayor drawbacks.

A Shunt of the Diploic Vein of the Orbital Roof Accompanying a Cavernous Sinus Dural Arteriovenous Fistula: A Case Report

A Shunt of the Diploic Vein of the Orbital Roof Accompanying a Cavernous Sinus Dural Arteriovenous Fistula: A Case Report

Transorbital endoscopic approach for exposure of the sylvian fissure, middle cerebral artery and crural cistern: an anatomical study.

The availability of minimal access instrumentation and endoscopic visualization has revolutionized the field of minimally invasive skull base surgery. The transorbital endoscopic approach using an eyelid incision has been proposed as a new minimally invasive technique for the treatment of skull base pathology, mostly extradural tumors. Our study aims to evaluate the anatomical aspects and potential role of the transorbital endoscopic approach for exposure of the sylvian fissure, middle cerebral artery and crural cistern. An anatomical dissection was performed in four freshly injected cadaver heads (8 orbits) using 0- and 30-degree endoscopes. First, an endoscopic endonasal medial orbital decompression was done to facilitate medial retraction of the orbit. An endoscopic transorbital approach through an eyelid incision, with drilling of the posterior wall of the orbit and lesser sphenoidal wing, was then performed to expose the sylvian fissure and crural cisterns. A stepwise anatomical description of the approach and visualized anatomy is detailed. A superior eyelid incision followed by orbital retraction provided a surgical window of approximately 1.2cm (range 1.0-1.5cm) for endoscopic transorbital dissection. The superior (SOF) and inferior (IOF) orbital fissures represent the medial limits of the approach and are identified in the initial part of the procedure. Drilling of the orbital roof (lateral and superior to the SOF), greater sphenoidal wing (lateral to the SOF and IOF) and lesser sphenoidal wing exposed the anterior and middle fossa dura. A square-shaped dural opening provided visualization of the posterior orbital gyri, sylvian fissure and temporal pole. Intradural dissection allowed exposure of the sphenoidal portion of the sylvian fissure, M1, MCA bifurcation and M2 branches and lenticulostriate perforators. Dissection of the medial aspect of the sylvian and carotid cisterns with a 30-degree endoscope allowed exposure of the mesial temporal lobe and crural cistern. The transorbital endoscopic approach allows successful exposure of the sphenoidal portion of the sylvian fissure and M1 and M2 segments of the middle cerebral artery. Angled endoscopes may provide visualization of the mesial temporal lobe and crural cistern. Although our anatomical study demonstrates the feasibility of intradural dissection and closure via an endoscopic transorbital approach, further studies are necessary to evaluate its role in the clinical scenario.

An Exophthalmic Clinical Presentation of Cementomatous Fibrous Dysplasia in an Orbital Roof

An Exophthalmic Clinical Presentation of Cementomatous Fibrous Dysplasia in an Orbital Roof

Traumatic eye ball luxation: A stepwise approach to globe salvage

Craniofacial trauma is often associated with orbital and ocular injuries. We report a case of a 21-year-old male with motor vehicular accident, orbital roof blow-in fracture, cerebrospinal fluid (CSF) leak, and left sided globe luxation with corneal abrasion and complete conjunctival denuding. The patient was managed by a multispeciality team and the eyeball was protected by amniotic membrane graft (AMG) biological dressing with novel use of inverted sterile metallic bowl as mechanical protection till the patient stabilized. During surgery, eyeball was reposited and ocular surface was reconstructed using amniotic membrane and symblepharon ring. Surgical correction and plating of the facial fractures and dural repair with autologus tensor fascia lata was done. Post surgery ocular surface was intact, ocular motility was well preserved and the globe was prephthisical. Traumatic eyeball luxation is a rare, but dramatic presentation which may occur in a blow in fracture when the intra orbital volume reduces and expels the eye ball out of the socket. This may be associated with extra ocular muscle rupture or optic nerve avulsion. The visual prognosis is nil in majority cases. However, the management is targeted towards globe preservation in view of psychological benefit and ease of cosmetic or prosthetic rehabilitation. Knowing the mechanism of luxation helps to plan the management. A stepwise approach for globe salvage is recommended. Team efforts to take care of various morbidities with special steps to safeguard the eye help to optimize outcomes.

Reconstruction of Orbital Roof Fracture using Titanium Mesh- Case Report and Review of Literature

Reconstruction of Orbital Roof Fracture using Titanium Mesh- Case Report and Review of Literature

Prevalence of cribra orbitalia in Pacopampa during the formative period in Peru.

Cribra orbitalia is characterized by an aggregation of small apertures in the orbital roof in response to marrow hypertrophy. This pathological change is indicative of biological stress during youth. We examined the prevalence of this lesion in Pacopampa, a ceremonial center of the formative period, located in the northern highlands of Peru. Using this evaluation of cribra orbitalia, we reconstructed aspects of the population's health and nutritional status during the formation of Andean civilization. We examined 41 orbits of 27 adult individuals (13 males, 14 females) and recorded the macroscopic presence or absence of cribra orbitalia. The presence or absence of cribra orbitalia was the same bilaterally for all 14 individuals having both orbits preserved. The pathology was present in two of the 13 males (15.4%), one of the 14 (7.1%) females, and three of 27 individuals (11.1%) for both sexes combined. There was no difference in the frequency between sexes. The prevalence of cribra orbitalia was found to be lower in Pacopampa than in the comparative data of coastal populations. It is reasonable to assume that the increase in social complexity in Pacopampa was probably unrelated to the decline in overall health of the people.

Evaluation of a Minimally Disruptive Treatment Protocol for Frontal Sinus Fractures

Despite common goals of frontal sinus fracture treatment (restoring forehead contour and creating a safe sinus), there remains significant variability in evaluation and treatment. To describe our experience with a minimally disruptive treatment protocol for the treatment of frontal sinus fractures. Analysis of prospectively collected data from 2010 through 2015 at a level 1 trauma center. All patients with frontal sinus fractures treated with our protocol from January 2010 to December 2015. Patients with poor follow-up and/or incomplete medical records were excluded from analysis. Presence of an aerated frontal sinus and aesthetically acceptable forehead contour. Secondary outcome measures were complications related to frontal sinus fractures. A total of 39 patients were treated under our minimally disruptive protocol, and 25 patients were included in the study; 18 (72%) were male and 7 (28%) were female. Their ages ranged from 6 to 62 years. After review, 22 patients had both clinical and radiographic follow-up. No patients underwent immediate frontal sinus repair. Five of 22 patients underwent surgery for indications other than their frontal sinus fracture: 1 of 5 patients underwent immediate surgical repair due to bilateral LeFort fractures, and 4 of 5 underwent delayed surgery due to nasal polyps (1 patient), scar revision (1 patient), and concomitant LeFort fractures (2 patients). Two of 22 patients (9%) underwent frontal sinus repair after outpatient surveillance due to persistent cerebrospinal fluid leak (1 patient) and orbital roof fracture (1 patient). The remaining 20 patients were treated nonoperatively, and 19 of 20 (95%) had spontaneous improvement in opacification and/or contour deformity. Twelve of 20 patients (60%) had improvement or resolution in both. One patient had ongoing partial opacification and deformity at the 3-month follow-up but was asymptomatic and had bony contour that was aesthetically acceptable to the patient. There were no complications. The median of all follow-up was 3 months. Frontal sinus fractures treated nonoperatively had a high rate of spontaneous ventilation and bony autoreduction with aesthetically acceptable frontal bone remodeling. There were no complications in the nonoperative group. The initial results of this study support further study of the safety and efficacy of a minimally disruptive protocol for frontal sinus fractures. 4.

Growing Skull Fracture and the Orbitocranial Variant: Nuances of Surgical Management

Aims: Growing skull fracture (GSF) is a rare complication resulting from diastatic enlargement of a pediatric skull fracture. Orbitocranial GSF is a distinct variant with more complex management issues due to the displacement of the globe. This study aims to discuss surgical considerations in the management of GSF, with particular reference to orbitocranial variants. Methods: We conducted a retrospective analysis of 7 children operated for GSFs at our institute from 2008 to 2015. Results: Four boys and 3 girls were operated during this period. The mean age at initial trauma was 2 years, and most of them sustained falls. The most frequent symptoms of GSF were progressive scalp swelling and proptosis. The most common location was the orbitofrontal region. Duraplasty with cranioplasty was performed in 5 patients, while duraplasty alone was only required in 2 patients. A postoperative complication was noted in 1 patient and managed successfully. Good cosmetic results were obtained in all of the cases. Conclusions: Duraplasty is essential in the repair of GSF and should be followed by cranioplasty to prevent recurrent leptomeningeal herniation. We recommend the use of autologous bone from the surgical site for cranioplasty. Orbital roof repair is advisable for good visual and cosmetic outcome in orbitocranial variants of GSF.

The “Wedge Sign”: An Imaging Sign for Aggressive Lacrimal Gland Disease

Lacrimal gland carcinoma can form a triangle of tissue back to the orbital apex, intraconal spread apparently being prevented by the intermuscular septum. The "wedge sign" frequency is assessed in lacrimal carcinoma, lacrimal lymphoma, or dacryoadenitis. Retrospective masked review of images from patients with biopsy-proven lacrimal gland pathology. For each patient, the presence of a triangle of tissue between the lateral rectus and lateral orbital wall and the superior rectus and the orbital roof was assessed by masked review of computed tomography or magnetic resonance imaging. For the lateral compartment, the wedge was classified as "grade 1" if it just reached the sphenoidal trigone and "grade 2" if it was a complete triangle reaching the orbital apex. Comparison of proportions was made using the Fisher exact test, using an α risk of 0.05 as clinically significant. Imaging for 116 patients was reviewed: 39 with lacrimal gland carcinoma, 37 with lymphoma, and 40 with dacryoadenitis. The lateral wedge (grade 1 or 2) was most common in patients with carcinoma (16/39; 41%), was present in 11 of 37 patients (30%) with lymphoma, and was rarest in patients with dacryadenitis (6/40; 15%) (P= 0.033). The proportion in patients with carcinoma (41%) was similar to that in patients with lymphoma (30%) (P= 0.345); the proportion in patients with lymphoma (30%) was similar to that in patients with dacryoadenitis (15%) (P= 0.170), but carcinoma (41%) was significantly different from dacryoadenitis (15%) (P=0.013). The proportions for malignant lesions (carcinoma and lymphoma; 27/76, 36%) and benign dacryoadenitis (15%) were significantly different (P= 0.029). Likewise, a superior wedge, of any extent, was present in 10 of 39 carcinomas (26%), 2 of 40 dacryoadenitis (5%), and 6 of 37 lymphomas (16%) (P= 0.033). The "wedge sign" is most common in lacrimal gland carcinoma, but can occur in patients with severe forms of dacryoadenitis or lymphoma and generally indicates life-threatening lacrimal gland pathology that requires urgent biopsy. It is significantly more common in lacrimal gland carcinoma compared with dacryoadenitis and in malignancy (lymphoma and carcinoma) compared with inflammation.

Endoscopic approach for a delayed post-traumatic ethmoidal mucocele: a technical note

Objective: Delayed post-traumatic mucoceles are rare. We describe the surgical treatment of a post-traumatic ethmoidal mucocele with intra-orbital extension.Method: A uninostril endoscopic endonasal approach (EEA) was performed. The access was contralateral to the lesion to provide a wider lateral view. After a large sphenoid and ethmoid sinuses opening, the collection was drained and the optic nerve precociously identified. The orbital roof was eroded and the frontal dura mater directly visible.Conclusion: The uninostril contralateral approach allows a good exposure of the lateral fields and is conservative towards the nasal mucosa. A favorable skull base anatomy is the prerequisite for its efficacy.

Frontal lobe abscess due to orbital roof blow out fracture

Frontal lobe abscess due to orbital roof blow out fracture

Transcranial Supraorbital Approach for Tumor Removal of Spheno-Orbital Meningioma with Favorable Clinical Outcomes

Background: To describe and evaluate the surgery results regarding resectability and clinical outcomes oftranscranial supraorbital approach for tumor removal of spheno-orbital meningiomaCase Illustration: A 58-year-old woman presented with proptosis of the right eye since 9 years prior.At initial examination, visual acuity was 6/15 with significant nasal visual field defect. There wereprominent proptosis and inferior globe displacement of the right eye with no palpable mass. A frontoparietalbone deformity was also observed. CT scan examination revealed hyperostosis of sphenoid,frontal, and temporal bone with extensive intraorbital mass with contrast enhancement suggestive ofmeningioma. Incisional biopsy was the performed and confirmed the histopathological diagnosis ofmeningothelial meningioma (WHO grade 1). Transcranial supraorbital in conjunction with lateralorbitotomy was performed in this patient as the definitive treatment for tumor removal of sphenoorbitalmeningioma. Craniotomy and opening of orbital roof were carried out by neurosurgeon toexpose intraorbital region. Total tumor removal was than completed.Conclusion: Transcranial supraorbital approach is an effective surgery for spheno-orbital meningiomaremoval as it offers excellent exposure. A radical resection through transcranial approach can be achievedwith low morbidity, providing a significantly improved clinical outcome in long term period. In thiscase, the spheno-orbital meningioma was grossly resected totally with excellent visual outcome andacceptable cosmetic appearance.Keywords: spheno-orbital meningioma, transcranial approach, tumor resection

How I do it: The expanded trans/supraorbital approach for large space-occupying lesions of the anterior fossa.

The supraorbital rim often interferes with the required upward movement of the instruments for resection of large frontal-lobe tumours through a classic supraorbital craniotomy. Here, we present the expanded trans/supraorbital approach to overcome these limitations. After an eyebrow skin incision, a one-piece bone flap was created incorporating the orbital rim and roof. Basal extension of the craniotomy allowed for a better intracranial visualisation with improved manoeuvrability and angulation of the instruments without using brain retraction. This approach poses a feasible alternative to large frontal craniotomies for frontal-lobe tumours, for which a regular supraorbital craniotomy is insufficient.

Interdisciplinary Management of Minimally Displaced Orbital Roof Fractures: Delayed Pulsatile Exophthalmos and Orbital Encephalocele.

Traumatic orbital roof fractures are rare and are managed nonoperatively in most cases. They are typically associated with severe mechanisms of injury and may be associated with significant neurologic or ophthalmologic compromise including traumatic brain injury and vision loss. Rarely, traumatic encephalocele or pulsatile exophthalmos may be present at the time of injury or develop in delayed fashion, necessitating close observation of these patients. In this article, we describe two patients with minimally displaced blow-in type orbital roof fractures that were later complicated by orbital encephalocele and pulsatile exophthalmos, prompting urgent surgical intervention. We also suggest a management algorithm for adult patients with orbital roof fractures, emphasizing careful observation and interdisciplinary management involving plastic surgery, neurosurgery, and ophthalmology.

A Case of Pancreatic Adenocarcinoma with Unique Clinical and Unusual Pathological Features

Pancreatic adenocarcinoma is a form of cancer with ominous prognosis which occurs particularly among men above 50 years old with genetic predisposition and environmental and lifestyle risk factors. The incidence is low in patients less than 50 years old. We report a case of a 35 year old male, who was admitted to our hospital complaining of difficulty in breathing, and was found to have a mediastinal mass, a right subscapular mass, a duodenal polyp, a thickening of the roof of the right orbit. Immunostains of the right subscapular mass showed positivity for CK19, CK7 and focal positivity for B-HCG and alpha fetoprotein

A supraorbital trans-eyebrow approach in surgery of chiasmatic-sellar and anterior cranial fossa tumors

to analyze 31 resections of chiasmatic-sellar region (CSR) and anterior cranial fossa (ACF) tumors using the supraorbital trans-eyebrow approach (STA). We analyzed medical histories of 31 patients who underwent tumor resection using STA in the period between October 2013 and April 2017. We analyzed the age and gender of patients, size and location of the tumor, presence of a neurological deficit, vision and olfactory functions before and after surgery, surgery duration, amount of intraoperative blood loss, rate of frontal sinus trephination and nasal liquorrhea, hemorrhagic and ischemic complications after surgery, Simpson grade of tumor resection, patient's condition before and after surgery (Glasgow Outcome Scale and Karnofsky Scale), and degree of patient satisfaction with the cosmetic result of surgery. A total of 26 meningiomas (20 sphenoid plate, tubercle, and diaphragm tumors, 3 lesser sphenoid wing meningiomas, 2 orbital roof tumors, and 1 anterior clinoid process meningioma), 3 frontal lobe gliomas, and 2 pituitary adenomas were resected. In all 31 operations, the approach was adequate and enabled tumor resection without lethal outcomes. The mean surgery duration was 174.6±64.4 min. The mean blood loss was 190±96.6 mL (50-380 mL). After surgery, none of the patients developed motor deficits and new epileptic seizures. Neurological deficit aggravation in the form of impaired vision and mental disorders occurred in 8 (25.8%) patients. Vision impaired in 4 (12.9%) patients, improved in 6 (19.3%) patients, and remained unchanged in 21 (67.7%) patients. An endocrinological deficit in the form of partial hypopituitarism developed in 3 (9.6%) patients; in 4 (12.9%) patients, there were mental disorders that regressed by the end of the first month of therapy. There were no intracerebral and subarachnoid hemorrhages. In 2 (6.4%) patients, small epidural hematomas were diagnosed, which did not require surgical treatment. There were only good outcomes (a GOS score of 4 or 5). After surgery, the median Karnofsky index in the STA group was 90±7. In all 31 (100%) patients, the postoperative wound healed by primary intention, without infectious complications and wound liquorrhea. One (4%) patient developed eyebrow palsy; 3 (12%) patients had hypoesthesia in the supraorbital region. The mean VAS score of patient satisfaction with the cosmetic result was 9.36 (median 10±1). The mean follow-up period was 16.2±13.5 months (2-38 months). The STA is adequate for removal of CSR and ACF tumors under proper selection of patients. It provides an adequate view of anatomical structures and enables successful tumor resection through a less traumatic access.

Subgaleal haematoma extending into the orbit following blunt head trauma as a cause of permanent blindness: A case illustrated review

Concurrent occurrence of subgaleal haematoma (SGH) and orbital subperiosteal haematoma (OSPH) is an unusual post-traumatic phenomenon. It is especially seen in cases of massive SGH. This report is a review, illustrated with a personal clinical experience, of this clinical disease association. Extensive literature review using the PubMed search engine for all cases of blindness from SGH and OSPH in the English language was conducted for this report. Vision-threatening complications of massive traumatic SGH that is associated with OSPH are rare but well described. The resulting orbital bleed most commonly involves the extraconal orbital roof. It is essentially an orbital epidural haematoma. Its aetiopathogenesis is that of an orbital space occupying lesion (SOL) causing clinical evidence of raised intraorbital pressure (IOP) including chemosis, proptosis, ophthalmoplegia, exposure keratopathy and orbital cellulitis and blindness. The visual impairment is usually temporary and responds well to prompt intraorbital decompression. However, permanent blindness ensues if suboptimal treatment including missed diagnosis and or delayed treatment is offered.

Frontal Bone Fracture Extending into the Roof and Medial Wall of Orbital Fracture Causing Diplopia

Fractures of the anterior cranial fossa can extend into the orbit and, if not detected early, can lead to either acute (e.g., diplopia, retrobulbar hematoma, and enophthalmos) or chronic complications (e.g., diplopia, restricted extraocular movement, ectropion, and enophthalmos). We report a case of a 15-year-old male child who sustained frontal bone fracture extending into the orbit. He had swelling of the right eye, and once the swelling subsided, he complained of diplopia. Computed tomography scan of the brain showed comminuted depressed frontal bone fracture extending more on the right side—the fracture was extending into the right orbital roof and associated fracture of the right medial orbital wall. The child underwent elevation of depressed bone fragments including decompression of the medial rectus muscle. Frontal bone fragments was replaced and secured with miniplates and screws. His diplopia completely recovered and he is doing well at follow-up.

Nontraumatic orbital roof encephalocele

Intraorbital meningoencephaloceles occur most commonly as a complication of traumatic orbital roof fractures. Nontraumatic congenital orbital meningoncephaloceles are very rare, with most secondary to destructive processes affecting the orbit and primary skull defects. Treatment for intraorbital meningoencephaloceles is surgical repair, involving the excision of herniated brain parenchyma and meninges and reconstruction of the osseous defect. Most congenital lesions present in infancy with obvious globe and orbital deformities; we report an orbital meningoencephalocele in a 3-year-old girl who presented with ptosis.