Mehmet Reşid Onen

Learn More
BACKGROUND In patients with cervical spondylotic myelopathy (CSM), laminectomy is usually performed with a Kerrison rongeur or a high speed drill (HSD).The HSD, which is most often selected for laminectomy, may cause complications such as duratomy, thermal and mechanical neural injuries. With an ultrasonic bone scalpel (UBS), a less traumatic laminectomy(More)
AIM Robotic spine surgery techniques provide reduced pedicle screw malposition and radiation exposure during surgery. The aim of this study is to review clinical and radiological results of robotic spine surgery. MATERIAL AND METHODS The preoperative, intraoperative and postoperative data for 27 patients were reviewed. To reveal the effect of a learning(More)
Kyphoplasty is a minimally invasive procedure that is used to augment vertebral body strength. This technique has been commonly used to treat osteoporotic, vertebral body compression fractures. The technique was also used to augment painful metastatic vertebral fractures. The objective of this study was to review the clinical and radiological results after(More)
Paraganglioma (PG) is a rare tumor of the dispersed neuroendocrine system. PG derives from the embryonic sympathetic and parasympathetic nervous system. Paraganglioma is a neoplasm of the dispersed neuroendocrine system that affects a variety of anatomic sites, mainly the head and neck. It occurs commonly in the carotid body, glomus jugulare, mediastinum(More)
OBJECTIVE To review the diagnoses and surgical approach characteristics of giant spinal schwannomas (GSS) patients. METHODS We reviewed the preoperative and postoperative radiological and clinical data, and the surgical aspects of 18 GSS patients who underwent surgery in the Department of Neurosurgery, Umraniye Teaching Hospital and Research State(More)
AIm: To investigate the relationship between neuron density of the superior cervical sympathetic ganglia and pupil diameter in subarachnoid hemorrhage. mATERIAl and mEThODS: This study was conducted on 22 rabbits; 5 for the baseline control group, 5 for the SHAM group and 12 for the study group. Pupil diameters were measured via sunlight and ocular(More)
This study examined the relationship between neuron density in the stellate ganglion and the severity of basilar artery enlargement after bilateral common carotid artery ligation (BCCAL). Rabbits (n=24) were randomly divided into three groups: an unoperated control group (n=4); an experimental group subjected to BCCAL (n=15); and a sham-operated control(More)
BACKGROUND Autonomous innervations of the lungs are maintained by cervical sympathetic and vagal nerves. Sympathetic overactivity-induced neurogenic pulmonary edema (NPE) is known as a serious complication of subarachnoid hemorrhage, but the rational neuronal mechanism of that overactivity has not yet been clarified fully. The aim of this study was to(More)
We evaluated the clinical results of sacroplasty for sacral insufficiency fracture (SIF). SIF are rare fractures that present as low back and groin pain. The diagnosis of SIF is difficult and sacroplasty is the last line of treatment. We reviewed the clinical and radiological data of 15 patients who underwent sacroplasty. Fifteen patients were selected, 12(More)
AIM The carpal tunnel syndrome (CTS) is the commonest compressive neuropathy. Electromyography (EMG) is accepted as gold standard in diagnosis of CTS. However, pathologies and variations that are associated with a various findings may lead to failure. MATERIAL AND METHODS Magnetic resonance Imaging (MRI) was applied to 69 wrists of 55 patients, who(More)