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.

Sellar Defect Reconstruction with Vascularized Superior Turbinate Mucosal Flaps in Endonasal Endoscopic Transsellar Approach.

Background: The pedicled nasoseptal flap (NSF) constitutes the primary reconstructive option for most skull base defects in endonasal endoscopic approaches. The superior nasal turbinate (ST) has received little attention. We report our preliminary experience with the use of the ST mucosal flap in selected cases.

Intracavitary amphotericin B in the treatment of intracranial aspergillosis.

Intracranial aspergillosis is a rare infectious disease of the central nervous system with high mortality rates. Our aim is to present 3 cases of intracranial aspergillosis who were surgically treated with intracavitary amphotericin B administration. First case was a 21-year-old male patient.

Extended endoscopic endonasal approach to the ventral skull base lesions.

Objective: With the use of multiple endoscopic endonasal surgical corridors, extended endoscopic endonasal approaches (EEEAs) are now being used to treat a wide range of ventral skull base lesions. Our aim was to present our experience with EEEAs to the ventral skull base lesions.

Patients And Methods: The study group consisted of 106 patients (57 men and 49 women) who underwent surgery for skull base lesions using EEEAs from 2010 to 2017.

Anatomical variations of brachial plexus in fetal cadavers.

Aim: The plexus brachialis is a complex structure with anatomical variations and connections with neighboring tissues. These variations may cause disparity in the motor and sensorial innervations of the upper extremity. The knowledge of anatomy and probable variations are important for performing surgical procedures in the neck, shoulder and axilla.

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.

Endoscope-Assisted Microsurgical Removal of an Intraventricular Ependymal Cyst That Manifested with Tremor.

Background: Intraventricular ependymal cysts (ECs) are rare, histologically benign neuroepithelial cysts. Most of these cysts are clinically silent and discovered incidentally. Rarely, they become symptomatic, leading to obstruction of the cerebrospinal fluid circulation.

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.

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.

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.

Surgical management strategies of intracranial arachnoid cysts: a single institution experience of 75 cases.

Aim: Arachnoid cysts are benign intra-arachnoid cystic lesions filled with cerebrospinal fluid. With advent of modern treatment techniques, debate continues regarding which surgical treatment is most effective. MATERIAL and

Methods: A consecutive series of 75 patients with arachnoid cysts that were surgically treated between January 1992 and December 2009 are reported.

Use of an ultra-low field intraoperative MRI system for pediatric brain tumor cases: initial experience with 'PoleStar N20'.

Aim: Use of intraoperative MRI (iMRI) is the highest contemporary supportive means for brain tumor surgery. In this article we describe the issues related to iMRI use in pediatric cranial operations.

Material And Methods: Pediatric cases operated with the aid of Polestar N20 iMRI system are defined and the pros and cons of the system are emphasized.

Management outcome of peroneal nerve injury at knee level: experience of a single military institution.

Background And Purpose: We investigated the management outcome of common peroneal nerve decompression at the knee level between the years 2005 and 2009.

Material And Methods: Thirty consecutive patients with knee-level peroneal nerve injury who underwent decompression surgery and external neurolysis at our institution were evaluated preoperatively and postoperatively by electrophysiological studies and motor examination (Medical Research Council grading).

Results: Twenty-eight of the cases were male and 2 were female.

Analysis of proximal radial nerve injury in the arm.

Background: Radial nerve is the most frequently injured major nerve in the upper extremity. Proximal part of the radial nerve involvement can result from a humerus fracture, direct nerve trauma, compression and rarely from tumors.

Objectives: The aim of the study is to determine the clinical characteristics and electrodiagnostic findings in patients with proximal radial nerve injuries, and also the outcome of surgical treatment.

The surgical anatomy of the brachial plexus.

Aim: The brachial plexus (BP) has a complex structure and risky relations with its neighborhoods. This study was designed to investigate and overcome the morphometric features of the BP and the difficulties regarding surgery of BP lesions.

Material And Method: Twelve BP of six adult cadavers were dissected and neural structures, branches, and variations were evaluated.

Surgical outcomes of the brachial plexus lesions caused by gunshot wounds in adults.

Background: The management of brachial plexus injuries due to gunshot wounds is a surgical challenge. Better surgical strategies based on clinical and electrophysiological patterns are needed. The aim of this study is to clarify the factors which may influence the surgical technique and outcome of the brachial plexus lesions caused by gunshot injuries.

Evaluation of spinal missile injuries with respect to bullet trajectory, surgical indications and timing of surgical intervention: a new guideline.

Study Design: Analysis of the patients with spinal missile injury (SMI).

Objective: Choosing the optimum treatment for SMI with respect to bullet trajectory, evaluation of surgical indications, and timing of surgical intervention.

Summary Of Background Data: A few guidelines were reported for the management of SMI.

Spinal hydatid cyst mimicking arachnoid cyst on magnetic resonance imaging.

Background: Primary spinal hydatid cysts are uncommon and account for 1% of all cases of hydatid disease. Echinococcus granulosus is most often responsible for the cyst hydatid. Intradural, extramedullary involvement is rare.

The clinical, electrophysiologic, and surgical characteristics of peripheral nerve injuries caused by gunshot wounds in adults: a 40-year experience.

Background: There are few large-volume studies on the repair of peripheral nerve lesions caused by gunshot wounds. In this study, the results of peripheral nerve repair are analyzed, and the factors influencing the outcome are investigated.

Methods: During a 40-year period, 2210 peripheral nerve lesions in 2106 patients who sustained gunshot injury were treated surgically in the Department of Neurosurgery.