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Journal of Korean Neurosurgical Society

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https://www.readbyqxmd.com/read/28881125/adjustable-ghajar-guide-technique-for-accurate-placement-of-ventricular-catheters-a-pilot-study
#1
Sang-Youl Yoon, Youngseok Kwak, Jaechan Park
OBJECTIVE: An adjustable Ghajar guide is presented to improve the accuracy of the original Ghajar guide technique. The accuracy of the adjustable Ghajar guide technique is also investigated. METHODS: The coronal adjustment angle from the orthogonal catheter trajectory at Kocher's point is determined based on coronal head images using an electronic picture archiving and communication system. For the adjustable Ghajar guide, a protractor is mounted on a C-shaped basal plate that is placed in contact with the margin of a burrhole, keeping the central 0° line of the protractor orthogonal to the calvarial surface...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28881124/minimally-invasive-anterior-decompression-technique-without-instrumented-fusion-for-huge-ossification-of-the-posterior-longitudinal-ligament-in-the-thoracic-spine-technical-note-and-literature-review
#2
Jae Won Yu, Sang-O Yun, Chang-Sheng Hsieh, Sang-Ho Lee
OBJECTIVE: Several surgical methods have been reported for treatment of ossification of the posterior longitudinal ligament (OPLL) in the thoracic spine. Despite rapid innovation of instruments and techniques for spinal surgery, the postoperative outcomes are not always favorable. This article reports a minimally invasive anterior decompression technique without instrumented fusion, which was modified from the conventional procedure. The authors present 2 cases of huge beak-type OPLL...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28881123/significant-risk-factors-for-postoperative-enlargement-of-basal-ganglia-hematoma-after-frameless-stereotactic-aspiration-antiplatelet-medication-and-concomitant-ivh
#3
Wonsoo Son, Jaechan Park
OBJECTIVE: Frameless stereotactic aspiration of a hematoma can be the one of the treatment options for spontaneous intracerebral hemorrhage in the basal ganglia. Postoperative hematoma enlargement, however, can be a serious complication of intracranial surgery that frequently results in severe neurological deficit and even death. Therefore, it is important to identify the risk factors of postoperative hematoma growth. METHODS: During a 13-year period, 101 patients underwent minimally invasive frameless stereotactic aspiration for basal ganglia hematoma...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28881122/traumatic-brain-injury-in-children-under-age-24-months-analysis-of-demographic-data-risk-factors-and-outcomes-of-post-traumatic-seizure
#4
Sang-Youl Yoon, Yeon-Ju Choi, Seong-Hyun Park, Jeong-Hyun Hwang, Sung Kyoo Hwang
OBJECTIVE: Traumatic brain injury (TBI) in children under age 24 months has characteristic features because the brain at this age is rapidly growing and sutures are opened. Moreover, children this age are completely dependent on their parents. We analyzed the demographic data and risk factors for outcomes in TBI patients in this age group to elucidate their clinical characteristics. METHODS: We retrospectively reviewed the medical records and radiological films of children under 24 months who were admitted to Kyungpook National University Hospital from January 2004 to December 2013 for TBI...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28881121/the-predictable-factors-of-the-postoperative-kyphotic-change-of-sagittal-alignment-of-the-cervical-spine-after-the-laminoplasty
#5
Jun Seok Lee, Dong Wuk Son, Su Hun Lee, Dong Ha Kim, Sang Weon Lee, Geun Sung Song
OBJECTIVE: Laminoplasty is an effective surgical method for treating cervical degenerative disease. However, postoperative complications such as kyphosis, restriction of neck motion, and instability are often reported. Despite sufficient preoperative lordosis, this procedure often aggravates the lordotic curve of the cervical spine and straightens cervical alignment. Hence, it is important to examine preoperative risk factors associated with postoperative kyphotic alignment changes. Our study aimed to investigate preoperative radiologic parameters associated with kyphotic deformity post laminoplasty...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28881120/a-lower-t1-slope-as-a-predictor-of-subsidence-in-anterior-cervical-discectomy-and-fusion-with-stand-alone-cages
#6
Su Hun Lee, Jun Seok Lee, Soon Ki Sung, Dong Wuk Son, Sang Weon Lee, Geun Sung Song
OBJECTIVE: Preoperative parameters including the T1 slope (T1S) and C2-C7 sagittal vertical axis (SVA) have been recognized as predictors of kyphosis after laminoplasty, which is accompanied by posterior neck muscle damage. The importance of preoperative parameters has been under-estimated in anterior cervical discectomy and fusion (ACDF) because there is no posterior neck muscle damage. We aimed to determine whether postoperative subsidence and pseudarthrosis could be predicted according to specific parameters on preoperative plain radiographs...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28881119/evaluation-of-global-sagittal-balance-in-koreans-adults
#7
Yongjae Cho
OBJECTVIE: The global sagittal postural patterns as characterized by Roussouly classification have been previously described in various ethnicities, there were no studies investigated in Koreans. To analyze the distribution of the global sagittal postural patterns in Korean adults using Roussouly classification, the author prospectively studied. METHODS: 252 asymptomatic Korean adults was recruited. Data was obtained by reviewing the films for each subject. Spinopelvic parameters were measured and sagittal postural patterns were then determined according to Roussouly classification...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28881118/the-effect-of-uncinate-process-resection-on-subsidence-following-anterior-cervical-discectomy-and-fusion
#8
Su Hun Lee, Jun Seok Lee, Soon Ki Sung, Dong Wuk Son, Sang Weon Lee, Geun Sung Song
OBJECTIVE: Subsidence is a frequent complication of anterior cervical discectomy and fusion. Postoperative segmental micro-motion, thought to be a causative factor of subsidence, has been speculated to increase with uncinate process resection area (UPR). To evaluate the effect of UPR on micro-motion, we designed a method to measure UPR area based on pre- and postoperative computed tomography images and analyzed the relationship between UPR and subsidence as a proxy of micro-motion. METHODS: We retrospectively collected clinical and radiological data from January 2011 to June 2016...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28881117/comparison-of-root-images-between-post-myelographic-computed-tomography-and-magnetic-resonance-imaging-in-patients-with-lumbar-radiculopathy
#9
Chun-Kun Park, Hong-Jae Lee, Kyeong-Sik Ryu
OBJECTIVE: To evaluate the diagnostic value of computed tomography-myelography (CTM) compared to that of magnetic resonance imaging (MRI) in patients with lumbar radiculopathy. METHODS: The study included 91 patients presenting with radicular leg pain caused by herniated nucleus pulposus or lateral recess stenosis in the lumbar spine. The degree of nerve root compression on MRI and CTM was classified into four grades. The results of each imaging modality as assessed by two different observers were compared...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28881116/surgical-roles-for-spinal-involvement-of-hematological-malignancies
#10
Sang-Il Kim, Young-Hoon Kim, Kee-Yong Ha, Jae-Won Lee, Jin-Woo Lee
OBJECTIVE: Patients with hematological malignancies frequently encounter spine-related symptoms, which are caused by disease itself or process of treatment. However, there is still lack of knowledge on their epidemiology and clinical courses. The purpose of this article is to review clinical presentations and surgical results for spinal involvement of hematologic malignancies. METHODS: From January 2011 to September 2014, 195 patients (98 males and 97 females) suffering from hematological malignancies combined with spinal problems were retrospectively analyzed for clinical and radiological characteristics and their clinical results...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28881115/the-role-of-adjuvant-treatment-in-patients-with-high-grade-meningioma
#11
Minjae Cho, Jin-Deok Joo, In Ah Kim, Jung Ho Han, Chang Wan Oh, Chae-Yong Kim
OBJECTIVE: To investigate the efficacy of adjuvant treatment in patients with high-grade meningioma. METHODS: A retrospective analysis was performed for patients with high-grade meningioma, World Health Organization grade 2 or 3, in a single center between 2003 and 2014. The patients were reviewed according to age at diagnosis, sex, the location of meningioma, degree of tumor resection, histological features, and type of adjuvant treatment. These factors were analyzed by Firth logistic regression analyses...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28881114/intra-arterial-and-intravenous-tirofiban-infusion-for-thromboembolism-during-endovascular-coil-embolization-of-cerebral-aneurysm
#12
Sang Heum Kim, Tae Gon Kim, Min Ho Kong
OBJECTIVE: Thromboembolism is the one of the most serious complications that can occur during endovascular coil embolization of cerebral aneurysm. We report on the effectiveness and safety of intra-arterial/intravenous (IA/IV) glycoprotein IIb/IIIa inhibitor (tirofiban) infusion for treating thromboembolism during endovascular coil embolization of cerebral aneurysm. METHODS: We performed a retrospective analysis of 242 patients with ruptured or unruptured cerebral aneurysms (n=264) who underwent endovascular coil embolization from January 2011 to June 2014...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28881113/cerebral-arterial-stenosis-in-patients-with-spontaneous-intracerebral-hemorrhage
#13
Pil-Wook Chung, Yu Sam Won
OBJECTIVE: Spontaneous intracerebral hemorrhage (ICH) and ischemic stroke share common vascular risk factors such as aging and hypertension. Previous studies suggested that the rate of recurrent ICH and ischemic stroke might be similar after ICH. Presence of cerebral arterial stenosis is a potential risk factor for future ischemic stroke. This study investigated the prevalence and factors associated with cerebral arterial stenosis in Korean patients with spontaneous ICH. METHODS: A total of 167 patients with spontaneous ICH were enrolled...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28881112/morphological-and-hemodynamic-parameters-for-middle-cerebral-artery-bifurcation-aneurysm-rupture-risk-assessment
#14
Hao Qin, Qixia Yang, Qiang Zhuang, Jianwu Long, Fan Yang, Hongqi Zhang
OBJECTIVE: To investigate the morphological and hemodynamic parameters associated with middle cerebral artery (MCA)bifurcation aneurysm rupture. METHODS: A retrospective study of 67 consecutive patients was carried out based on 3D digital subtraction angiography data. Morphological and hemodynamic parameters including aneurysm size parameters (dome width, height, and perpendicular height), longest dimension from the aneurysm neck to the dome tip, neck width, aneurysm area, aspect ratio, Longest dimension from the aneurysm neck to the dome tip (Dmax) to dome width, and height-width, Bottleneck factor, as well as wall shear stress (WSS), low WSS area (LSA), percentage of LSA (LSA%) and energy loss (EL) were estimated...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28881111/biomechanical-comparison-of-inter-fragmentary-compression-pressures-lag-screw-versus-herbert-screw-for-anterior-odontoid-screw-fixation
#15
Jin-Woo Park, Kyoung-Tae Kim, Joo-Kyung Sung, Seong-Hyun Park, Ki-Woong Seong, Dae-Chul Cho
OBJECTIVE: The purpose of the present study was to compare inter-fragmentary compression pressures after fixation of a simulated type II odontoid fracture with the headless compression Herbert screw and a half threaded cannulated lag screw. METHODS: We compared inter-fragmentary compression pressures between 40- and 45-mm long 4.5-mm Herbert screws (n=8 and n=9, respectively) and 40- and 45-mm long 4.0-mm cannulated lag screws (n=7 and n=10, respectively) after insertion into rigid polyurethane foam test blocks (Sawbones, Vashon, WA, USA)...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28881110/endoscopic-spine-surgery
#16
REVIEW
Gun Choi, Chetan S Pophale, Bhupesh Patel, Priyank Uniyal
Surgical treatment of the degenerative disc disease has evolved from traditional open spine surgery to minimally invasive spine surgery including endoscopic spine surgery. Constant improvement in the imaging modality especially with introduction of the magnetic resonance imaging, it is possible to identify culprit degenerated disc segment and again with the discography it is possible to diagnose the pain generator and pathological degenerated disc very precisely and its treatment with minimally invasive approach...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28689399/sphingomonas-paucimobilis-a-rare-infectious-agent-found-in-cerebrospinal-fluid
#17
Tuncer Göker, Rahile Zülal Aşık, Muhammet Bahadır Yılmaz, İlhami Çelik, Ayhan Tekiner
Sphingomonas paucimobilis (S. paucimobilis) is a gram negative bacillus. It has existed in soil, drinking water and plants. It has been isolated from distilled water tanks, respirators, and hemodialysis devices at the hospital setting. Patients with chronic disorders or immune suppression may be susceptible to infections with it. This microorganism has also been reported to infect healthy persons. Both nosocomial and community-acquired infections have been reported. So far, a variety of infections have been reported, including sepsis, septic pulmonary embolism, septic arthritis, peritonitis, and endophthalmitis...
July 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28689398/an-electrode-configuration-for-recording-muscle-motor-evoked-potentials-in-the-upper-extremities-during-intraoperative-neurophysiological-monitoring
#18
Young-Doo Choi, Seung-Hyun Jin, Chi-Heon Kim, Gil Ho Kwak, Bo Eun Kim, Chun Kee Chung
OBJECTIVE: The main aim of the present study is to examine the electrode configurations used to record the muscle motor evoked potential (mMEP) in the upper extremities during surgery with the goal of producing a high and stable mMEP signal, in particular among the abductor pollicis brevis (APB), abductor digiti minimi (ADM), and across the APB-ADM muscles, which have been widely used for the mMEP in the upper extremities. METHODS: Thirty right-handed patients were recruited in this prospective study...
July 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28689397/invention-of-the-guide-catheter-irrigation-monitoring-device-for-neuroendovascular-therapy
#19
Ayca Ozkul, Jong-Hyun Park, Dong-Seung Shin, Ali Yilmaz, Bum-Tae Kim
OBJECTIVE: The thromboembolic events during neuroendovascular therapy (NET) are the major complications of concern that can be occasionally fatal. The thrombotic occlusion of the guide catheter for NET is thought to be the risk of the thromboembolic events. We have developed an idea for inventing the monitoring system of the continuous irrigation through the guide catheter. We herein present a unique invention of the guide catheter irrigation monitoring device. METHODS: We have developed ideas for preventing the thrombotic occlusion of the guide catheter...
July 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28689396/correlation-between-mri-grading-system-and-surgical-findings-for-lumbar-foraminal-stenosis
#20
Tae Seok Jeong, Yong Ahn, Sang Gu Lee, Woo Kyung Kim, Seong Son, Jung Hwa Kwon
OBJECTIVE: Magnetic resonance imaging (MRI) grading systems using sagittal images are useful for evaluation of lumbar foraminal stenosis. We evaluated whether such a grading system is useful as a diagnostic tool for surgery. METHODS: Between July 2014 and June 2015, 99 consecutive patients underwent unilateral lumbar foraminotomy for lumbar foraminal stenosis. Surgically confirmed foraminal stenosis and the contralateral, asymptomatic neuroforamen were assessed based on a 4-point MRI grading system...
July 2017: Journal of Korean Neurosurgical Society
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