Objective: To create a reusable and inexpensive training model with technological tools that simulates cerebral bypass surgery and a sensor system that provides tactile feedback to the surgeon. Furthermore, we aimed to evaluate the anastomotic stability and contribution to the surgeon's learning curve.
Methods: We created a superficial temporal artery-middle cerebral artery bypass simulation model using chicken and turkey brachial arteries.
This study aims to compare the effects of osteoplastic craniotomy on temporalis muscle and bone graft atrophy in patients operated on with a pterional approach to the standard technique. Patients operated on for an intracranial aneurysm with a pterional approach between 2014 and 2018 were studied. Following the exclusion criteria, 36 patients were included in this retrospective study.
View Article and Find Full Text PDFThe aim of this study was to evaluate the clinical outcomes of cerebrospinal fluid (CSF) rhinorrhea in patients treated with transcranial surgery. Here, we retrospectively reviewed 23 patients with CSF rhinorrhea between 2008 and 2015 at our university hospital. Nine (39.
View Article and Find Full Text PDFWe report imaging findings of a 64-year-old male patient with a ruptured epidermoid cyst (EC) known to be constant over the 23-year follow-up and showing malignant transformation to squamous cell carcinoma (SCC). Computed tomography (CT) and magnetic resonance imaging (MRI) findings including diffusion weighted imaging (DWI), 1H+MR spectroscopy (MRS), dynamic susceptibility contrast perfusion (DSC) MRI of EC, and its rare complications are presented together with a review of the literature. Fluid-lowattenuated- inversion-recovery (FLAIR) and T1-weighted images with gadolinium are the best sequences together with DWI to show the relationship of the EC, the SCC and the border between.
View Article and Find Full Text PDFLumbar disc herniation (LDH) associated with a contralateral neurological deficit is sometimes encountered by surgeons. Compression against the opposite pedicle in case of a large discal herniation and prominent stenotic changes of contralateral side are held responsible for contralateral symptoms and findings. In this study, we report a case of LDH associated with a painless contralateral neurological deficit.
View Article and Find Full Text PDFAim: Obstruction of superior sagittal sinus (SSS) and collateral bridging veins is a well-known reason of postoperative brain edema and brain infarct, however, morphometric anatomic studies done in the light of surgical landmarks aren't sufficient in number. Object of this study is to describe venous structures related to SSS with silicon injected cadaveric models.
Material And Methods: This study was on 6 silicon injected cadaveric heads at Anatomy Department.
Allodynia is the sensation of pain due to non-painful stimuli. It usually occurs due to destructive lesions of the spinal cord or peripheral nerves. Allodynia following intradural lipoma surgery has been reported previously.
View Article and Find Full Text PDFAim: The microanatomy of the abducens nerve (AN) is important for clinical reasons and surgical approaches as it is located in the petroclival region. The incidence of branching and duplication of the abducens nerve are unknown and mechanisms relating to paralysis of the nerve in indirect conditions are yet to be clarified.
Material And Methods: Microanatomical details (anatomical observations and morphometric measurements) of the AN were obtained from 20 cadaveric skull bases (40 specimens).
Aim: The petrosphenoidal ligament (PSL, or Gruber's ligament) is located between the petrous apex (PA) and posterior clinoid process (PCP). Details of its anatomy are conflicting in the few studies that exist in the literature. We performed this study to describe in detail the microanatomical characteristics of Gruber's ligament.
View Article and Find Full Text PDFMetastasis of meningiomas due to iatrogenic implantation of tumour cells is extremely rare and only four cases have been reported to date. In this study, we report a 45-year-old female patient who presented with meningioma metastasis at the pin site of head holder applied in the original operation.
View Article and Find Full Text PDFNeurol Med Chir (Tokyo)
March 2007
A 15-year-old boy presented with an extremely rare optochiasmatic cavernous angioma. He was admitted to a special hospital with the complaint of blurred vision persisting for 1 month. Magnetic resonance imaging and biopsy of the lesion were inconclusive.
View Article and Find Full Text PDFJ Spinal Disord Tech
February 2007
If present, kyphotic angulation is generally at the level of the cervical disc disease (CDD) in the neck, but sometimes occurs at one level above the CDD. We name this situation as kyphosis one level above (KOLA). KOLA CDD has not been studied previously.
View Article and Find Full Text PDFBackground Context: Intraradicular lumbar disc herniation is rare, having been reported to date in only three postoperative patients. The diagnosis is typically made intraoperatively.
Purpose: To report a fourth case of intraradicular disc herniation, to emphasize its radiological characteristics and operative findings.
Pediatr Neurosurg
December 2005
Application of anterior cervical plates in children is problematic because of the growing spine, and thus has been reported only rarely in the medical literature. In this case report, a 7-year-old with traumatic C(2-3) and C(3-4) ligamentous instability was treated surgically by limited-duration anterior cervical plating. The plate was removed in a second operation, as the osseous union occurred 1 year after the primary operation.
View Article and Find Full Text PDFJ Spinal Disord Tech
April 2004
To determine the cause of neurologic symptoms and signs seen in discitis, the neural histopathologic effects of discitis were investigated in an experimental study carried out on rats. Groups of seven rats each had their intervertebral discs inoculated with either Staphylococcus aureus, Klebsiella pneumoniae, Pseudomonas aeruginosa, or a control solution. Histopathologic examinations of the spinal cord and nerve roots were performed after 3 weeks.
View Article and Find Full Text PDFJ Spinal Disord Tech
December 2002
In this study we present a case of Tarlov's cyst that is treated operatively. The operation involved partial excision and oversewing of the cyst wall with connection to the dural sac and methylmethacrylate filling of the sacral bone defect that is formed by the cyst to prevent cyst recurrence. In symptomatic cases Tarlov's cyst can be treated operatively with a favorable outcome.
View Article and Find Full Text PDFStudy Design: Fifteen patients with lumbar spinal stenosis were treated by a new technique, inverse laminoplasty, and the results were evaluated clinically and radiologically.
Objective: To present the advantages of inverse laminoplasty over laminectomy for the treatment of lumbar spinal stenosis.
Summary And Background Data: Laminectomy has been used widely in the treatment of lumbar spinal stenosis.