Comparison of Surgical Techniques for Intracranial Arachnoid Cysts: A Volumetric Analysis.

Aim: To compare the volumetric changes of intracranial arachnoid cysts (IACs) in different surgical techniques.

Material And Methods: Sixty-six patients who underwent IAC surgery in our department between 2010 and 2020 were studied retrospectively. Based on the surgical technique, clinical and volumetric changes, postoperative complications, recurrence rates, and length of hospital stay were statistically compared.

Simultaneous Closure of Bilateral Cranial Defects Using Custom-Made 3D Titanium Implants: A Single Institution Series.

Aim: To investigate the outcomes of the simultaneous closure of bilateral cranial defects using custom-made three-dimensional (3D) titanium implants.

Material And Methods: Demographic data of 26 patients with bilateral cranial defects who underwent cranioplasty using the 3D custom-made titanium implants in our clinic between 2017 and 2022 were retrospectively reviewed. Data on the area of cranium defect, the time interval between last cranial surgery and cranioplasty, postoperative complications, etiology of the cranium defect, and hospitalization of the patient were statistically evaluated.

Risk Factors and Surgical Treatment Options for Intracranial Infections.

Aim: To present our experience on intracranial infections, and to determine the possible locations as well as the risk factors for surgical treatment.

Material And Methods: Over 13 years, 103 patients with intracranial infection underwent surgical evacuation. Seventy-one (68.

Resection of intra- and paraventricular malignant brain tumors using fluorescein sodium-guided neuroendoscopic transtubular approach.

Background: The requirement of brain retraction and difficulty in distinguishing the tumor demarcation are challenging in conventional approaches to intra- and paraventricular malignant tumors (IV-PVMTs). Tubular retractors can minimize the retraction injury, and fluorescein-guided (FG) surgery may promote the resection of tumors. Our aim is to evaluate the feasibility, safety, and effectiveness of fluorescein-guided endoscopic transtubular surgery for the resection of IV-PVMTs.

Fluorescein Sodium-Guided Neuroendoscopic Resection of Deep-Seated Malignant Brain Tumors: Preliminary Results of 18 Patients.

Background: Deep-seated intracranial lesions are challenging to resect completely and safely. Fluorescence-guided surgery (FGS) promotes the resection of malignant brain tumors (MBTs). Classically, FGS is performed using microscope equipped with a special filter.

Extended endonasal endoscopic approach for anterior midline skull base lesions.

Aim: In recent years, extended endoscopic endonasal approach (EEEA) has been used as an alternative to transcranial approaches in the treatment of anterior midline skull base lesions. We retrospectively reviewed our cases operated using this technique and compared the results with current literature.

Method: The data of 24 patients who were operated using EEEA in our department between 2010-2018 were retrospectively analyzed.

Expression of Sigma-Class Glutathione-S-Transferase in Fetal and Pediatric Filum Terminale Samples: A Comparative Study.

: The pathophysiology of tethered cord syndrome (TCS) in children is not well elucidated. An inelastic filum terminale (FT) is the main factor underlying the stretching of the spinal cord in TCS. Our study aimed to investigate the expression of glutathione-S-transferase (GST) in children and fetal FT samples in order to understand the relationship between this enzyme expression and the development of TCS.

The evaluation of the effects of steroid treatment on the tumor and peritumoral edema by DWI and MR spectroscopy in brain tumors.

Objective: To investigate the effects of dexamethasone on brain tumor and peritumoral edema by different sequences of magnetic resonance imaging (MRI).

Materials And Methods: MRI was performed in 28 patients with brain tumor. Patients were divided into the 3 groups based on the histological diagnosis; Group I: high-grade glial tumor, Group II: low-grade glial tumor, and Group III: brain metastasis.

A Comparison Between the Effectiveness of Full Outline of Unresponsiveness and Glasgow Coma Score at Neurosurgical Intensive Care Unit Patients.

Aim: To evaluate the effectiveness and the use of Glasgow Coma Score (GCS) and Full Outline of Unresponsiveness (FOUR) score by nurses in the follow-up and evaluation of patients admitted to the neurosurgical intensive care unit for cranial surgery or head trauma.

Material And Methods: The study was performed at a neurosurgical intensive care unit. Sample size was determined as 47 patients (a= 0.

Comparison of Electrophysiological Outcomes of Tethered Cord Syndrome and Spinal Intradural Tumors: A Retrospective Clinical Study.

Aim: Electrophysiological evaluation of the outcomes of spinal procedures is important for neurosurgeons. Somatosensorial evoked potentials (SSEPs) are used for electrophysiological evaluation of tethered cord syndrome (TCS) and spinal intradural tumors (SIT). The aim of this study was to document the electrophysiological outcomes of surgery for TCS and SIT and to compare the results based on the preoperative diagnosis.

Fully Endoscopic Resection of Intra-Axial Brain Lesions Using Neuronavigated Pediatric Anoscope.

Aim: To present a new simple disposable tubular retractor which provides fully endoscopic resections of the intraaxial brain lesions.

Material And Methods: A total of 13 patients underwent surgical resection of an intraaxial brain lesion larger than 3 cm with a fully endoscopic approach using the navigation-guided pediatric anoscope. The anoscope was adapted to serve as a tubular retractor.

Evaluation and Management of Lumbosacral Myelomeningoceles in Children.

Objective: Myelomeningoceles are the common form of open neural tube defects that are usually associated with neurological deficits. Many techniques of repair and methods of prevention have been proposed with respect to the size of defect and the neurological condition of patient. The aim of this study was to report our experience on the management of lumbosacral myelomeningoceles in children.

Computer-based surgical planning and custom-made titanium implants for cranial fibrous dysplasia.

Background: The procedure of reconstruction after the removal of cranial fibrous dysplasia (FD) must be precise to achieve good functional and aesthetic results. Intraoperative modeling of implants is difficult and may cause cosmetic disturbances.

Objective: To present our experience with the treatment of cranial FD using preoperative computer-based surgical planning of tumor removal with reconstruction of the cranium with custom-made titanium implants.

Histological structure of the medial and lateral walls of cavernous sinus in human fetuses.

Purpose: The aim of this study is to elucidate the architecture of these fine structures in human fetuses.

Methods: The histological examination of medial wall (MW) and lateral wall (LW) was performed in 15 normal human fetuses. Eleven fetuses were female and four were male.

The Use of Neuronavigation and Intraoperative Imaging in Spinal Stabilization Surgery.

Aim: Misplacement of pedicle screw is the serious complication of spinal surgeries. Intraoperative imaging techniques and navigation systems are currently in use for the prevention of this complication. The aim of this study was to document the results of our experience with the navigation and intraoperative imaging technique and to share our experience with our colleagues.

Surgical strategies for the removal of sphenoorbital meningiomas.

Aim: Surgical removal of sphenoorbital meningiomas is challenging for neurosurgeons. The aim of study is to share our experience on sphenoorbital meningiomas and to provide a picture of the current state of the art in surgical treatment of these tumors.

Material And Methods: The data of 13 cases of sphenoorbital meningioma who were operated between 2006 and 2013 was reviewed retrospectively.

The use of neuronavigation and intraoperative imaging systems in the surgical treatment of orbital tumors.

Aim: We aimed to show the effects of neuronavigation and intraoperative imaging systems on the surgical outcomes of orbital tumors.

Material And Methods: Seventeen patients who underwent surgical treatment for orbital tumors by transcranial and transnasal approaches between 2008 and 2013 were analyzed retrospectively. Twelve of them were male and 5 were female.

Dr. Rollas: a humble and persistent man.

Dr. Zinnur Rollas is the founder of the Department of Neurosurgery at the Gulhane Military Medical Academy (GMMA). He was educated in the United States and returned to Turkey in order to practice neurosurgery.

Histological structure of filum terminale in human fetuses.

Object: The structure of the filum terminale (FT) is important in the development of tethered cord syndrome (TCS) in children. Although many studies have been performed on the histological structure of the FT in adults, there has been no detailed investigation for those of fetuses. The aim of this study was to examine the histological structure of the FT in normal human fetuses and to compare the results with those of previous studies.

Bilateral thoracic ganglion cyst : a rare case report.

Ganglion cysts usually arise from the tissues around the facet joints. It is usually associated with degenerative cahanges in facet joints. Bilateral thoracic ganglion cysts are very rare and there is no previous case that located in bilateral intervertebral foramen compressing the L1 nerve root associated with severe radiculopathy.

The use of a simple self-retaining retractor in the endoscopic endonasal transsphenoidal approach to the pituitary macroadenomas: technical note.

Background: During tumor removal in the endoscopic endonasal approach to pituitary adenomas with a significant suprasellar extension, the early descent of diaphragma sellae obscuring the visualization of the surgical field is a surgical challenge.

Objective: To describe a simple diaphragma retraction technique to eliminate this problem.

Methods: A transparent flexible material (a strip of polypropylene) was used as a self-retaining retractor to elevate the redundant diaphragma and to maintain the diaphragma elevation.

The effects of splenectomy on lipid peroxidation and neuronal loss in experimental spinal cord ischemia/reperfusion injury.

Aim: The aim of this study is to investigate the effects of prior splenectomy on oxidative stress and neuronal loss following spinal cord ischemia and reperfusion injury.

Material And Methods: Twenty-one Sprague Dawley rats were randomly divided into three groups as sham laparatomy (n=7), spinal cord ischemia/reperfusion (SCIR) injury (n=7) and splenectomy+spinal cord ischemia/reperfusion (SSCIR) injury (n=7). In the latter group, splenectomy was performed 3 days before the SCIR injury.