Abstract:
OBJECTIVE:The inter-rater reliability of the modified Knosp's classification was measured before the analysis. The clinical validity of the parasellar extension grading system was evaluated by investigating the extents of resection and complication rates among the grades in the endoscopic endonasal transsphenoidal surgery (EETS) for pituitary adenomas. METHODS:From November 2008 to August 2015, of the 286 patients who underwent EETS by the senior author, 208 were pituitary adenoma cases (146 non-functioning pituitary adenomas, 10 adrenocorticotropic hormone-secreting adenomas, 31 growth hormone-secreting adenomas, 17 prolactin-secreting adenomas, and 4 thyroid-stimulating hormone-secreting adenomas; 23 microadenomas, 174 macroadenomas, and 11 giant adenomas). Two neurosurgeons and a neuroradiologist independently measured the degree of parasellar extension on the preoperative sellar MRI according to the modified Knosp's classification. Inter-rater reliability was statistically assessed by measuring the intraclass correlation coefficient. The extents of resection were evaluated by comparison of the pre- and post-operative MR images; the neurovascular complications were assessed by reviewing the patients' medical records. The extent of resection was measured in each parasellar extension grade; thereafter, their statistical differences were calculated. RESULTS:The intraclass correlation coefficient value of reliability across the three raters amounted to 0.862. The gross total removal (GTR) rates achieved in each grade were 70.0, 69.8, 62.9, 21.4, 37.5, and 4.3% in Grades 0, 1, 2, 3A, 3B, and 4, respectively. A significant difference in the extent of resection was observed only between Grades 2 and 3A. In addition, significantly higher complication rates were observed in the groups above Grade 3A. CONCLUSION:Although the modified Knosp's classification system appears to be complex, its inter-rater reliability proves to be excellent. Regarding the clinical validity of the parasellar extension grading system, Grades 3A, 3B, and 4 have a negative predictive value for the GTR rate, with higher complication rates.
journal_name
J Korean Neurosurg Socjournal_title
Journal of Korean Neurosurgical Societyauthors
Lee SH,Park JS,Lee S,Kim SW,Hong YKdoi
10.3340/jkns.2016.59.6.577subject
Has Abstractpub_date
2016-11-01 00:00:00pages
577-583issue
6eissn
2005-3711issn
1598-7876journal_volume
59pub_type
杂志文章abstract::Cerebellar hemorrhage is an unusual complication of supratentorial neurosurgery. To the best of our knowledge, only three case reports have described the occurrence of cerebellar hemorrhage after burr hole drainage for the treatment of chronic subdural hematoma (SDH). We present the case of a patient with this rare po...
journal_title:Journal of Korean Neurosurgical Society
pub_type:
doi:10.3340/jkns.2009.46.6.592
更新日期:2009-12-01 00:00:00
abstract::Traumatic brainstem hemorrhage after blunt head injury is an uncommon event. The most frequent site of hemorrhage is the midline rostral brainstem. The prognosis of these patients is poor because of its critical location. We experienced a case of traumatic brainstem hemorrhage. A 41-year-old male was presented with dr...
journal_title:Journal of Korean Neurosurgical Society
pub_type:
doi:10.3340/jkns.2009.45.3.176
更新日期:2009-03-01 00:00:00
abstract:OBJECTIVE:The objectives of this study was to determine the incidence and outcomes of procedural rupture (PR) during coil embolization of unruptured intracranial aneurysm (UIA) and to explore potential risk factors. METHODS:This retrospective study evaluated 1038 patients treated with coil embolization between January...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2016.59.1.6
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:To report a minimally invasive treatment option using percutaneous pedicle screw fixation with adjuvant treatment for metastatic thoraco-lumbar and lumbar spinal tumors. METHODS:This is a retrospective study of charts of patients with spinal metastases. All were older than 18 years of age and were considered...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2015.57.2.100
更新日期:2015-02-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to determine the efficacy of short segment fixation following postural reduction for the re-expansion and stabilization of unstable burst fractures in patients with osteoporosis. METHODS:Twenty patients underwent short segment fixation following postural reduction using a soft r...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2008.44.1.8
更新日期:2008-01-01 00:00:00
abstract::Isolated cortical vein thrombosis (ICVT) is a rare disease, accounting for less than 1% of strokes. A 46-year-old woman presented with progressive left side weakness. Magnetic resonance (MR) imaging with T2(*)-gradient echo (T2(*)-GE) sequence showed long cord sign at the right frontal cortex. The patient was treated ...
journal_title:Journal of Korean Neurosurgical Society
pub_type:
doi:10.3340/jkns.2015.58.5.476
更新日期:2015-11-01 00:00:00
abstract:OBJECTIVE:Craniovertebral junction (CVJ) consists of the occipital bone that surrounds the foramen magnum, the atlas and the axis vertebrae. The mortality and morbidity is high for irreducible CVJ lesion with cervico-medullary compression. In a clinical retrospective study, the authors reviewed clinical and radiographi...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2010.48.1.37
更新日期:2010-07-01 00:00:00
abstract::Weakness of the dorsiflexor muscles of the ankle or toe, referred to as foot drop, is a relatively common presentation. In most cases, foot drop is caused by a lower motor neuron disease such as peroneal peripheral neuropathy, L4-5 radiculopathic sciatic neuropathy, or polyneuropathy. Although upper motor neuron lesio...
journal_title:Journal of Korean Neurosurgical Society
pub_type:
doi:10.3340/jkns.2014.56.3.254
更新日期:2014-09-01 00:00:00
abstract::Alveolar soft part sarcoma (ASPS) with skull and brain metastases is extremely rare. A 53-year-old patient diagnosed as skull metastasis of ASPS visited our clinic complaining of an outgrowing scalp mass in spite of radiation therapy. Past medical history revealed that the patient had been diagnosed and treated for AS...
journal_title:Journal of Korean Neurosurgical Society
pub_type:
doi:10.3340/jkns.2012.52.1.55
更新日期:2012-07-01 00:00:00
abstract::The demineralized bone matrix (DBM) as the bone graft material to increase the fusion rate was widely used in spinal fusion. The current study aimed to compare the fusion rate of DBM to the fusion rate of autograft in lumbar spine fusion via meta-analysis of published literature. After systematic search, comparative s...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2019.0185
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVE:Spinal cord injury (SCI) is a very serious health problem, usually caused by a trauma and accompanied by elevated levels of inflammation indicators. Stem cell-based therapy is promising some valuable strategies for its functional recovery. Nestinpositive progenitor and/or stem cells (SC) isolated from pancrea...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2018.0035
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to elucidate the anatomical development of physiologic suture closure processes in infants using three dimensional reconstructed computed tomography (CT). METHODS:A consecutive series of 243 infants under 12 months of age who underwent three dimensional CT were included in this ...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2012.51.1.31
更新日期:2012-01-01 00:00:00
abstract:OBJECTIVE:To investigate risk factors for S1 screw loosening after lumbosacral fusion, including spinopelvic parameters and paraspinal muscles. METHODS:We studied with 156 patients with degenerative lumbar disease who underwent lumbosacral interbody fusion and pedicle screw fixation including the level of L5-S1 betwee...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2015.58.4.357
更新日期:2015-10-01 00:00:00
abstract:OBJECTIVE:Metaplastic meningioma is an extremely rare subtype of World Health Organization (WHO) grade I meningioma. It has distinctive histological subtypes according to its own mesenchymal components. Owing to its scarcity, clinical or radiological features of a metaplastic meningioma are poorly described. METHODS:B...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2020.0151
更新日期:2020-09-01 00:00:00
abstract::Plasma cell granuloma is a tumor-like disease characterized by non-neoplastic polyclonal proliferation of plasma cells and other mononuclear cells. This disease occurs most frequently in the lung and upper respiratory tract, while the involvement of the central nervous system is very rare. A 44-year-old female patient...
journal_title:Journal of Korean Neurosurgical Society
pub_type:
doi:10.3340/jkns.2009.46.2.161
更新日期:2009-08-01 00:00:00
abstract:OBJECTIVE:Two-dimensional fluoroscopy-based computerized navigation for the placement of pedicle screws offers the advantage of using stored patient-specific imaging data in providing real-time guidance during screw placement. The study aimed to describe the accuracy and reliability of a fluoroscopy-based navigation sy...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2014.56.1.16
更新日期:2014-07-01 00:00:00
abstract:OBJECTIVE:To analyze the clinical courses and outcomes after anterior lumbar interbody fusion (ALIF) for the treatment of postoperative spondylodiscitis. METHODS:A total of 13 consecutive patients with postoperative spondylodiscitis treated with ALIF at our institute from January, 1994 to August, 2013 were included (9...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2014.56.4.310
更新日期:2014-10-01 00:00:00
abstract:OBJECTIVE:According to the recent development of minimally invasive spinal surgery, direct lumbar interbody fusion (DLIF) was introduced as an effective option to treat lumbar degenerative diseases. However, comprehensive results of DLIF have not been reported in Korea yet. The object of this study is to summarize radi...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2014.55.5.248
更新日期:2014-05-01 00:00:00
abstract:OBJECTIVE:This study was performed to determine the anatomical landmarks and optimal dissection points of the facial nerve (FN) and the hypoglossal nerve (HGN) in the submandibular region to provide guidance for hypoglossal-facial nerve anastomosis (HFNA). METHODS:Twenty-nine specimens were obtained from 15 formalin-f...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2012.51.5.253
更新日期:2012-05-01 00:00:00
abstract:OBJECTIVE:Because the anatomical structure of the brachial plexus is very complex, surgical treatment of tumors in this region is challenging. Therefore, a lot of clinical and surgical experience is required for successful treatment; however, many neurosurgeons have difficulty accumulating this experience owing to the ...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2018.0045
更新日期:2018-09-01 00:00:00
abstract::A 55-year-old female patient presented with lower back pain and neurogenic intermittent claudication and underwent L3-L4 posterolateral fusion. To prepare the bone fusion bed, the transverse process of L3 and L4 was decorticated with a drill. On the 9th post-operative day, the patient complained of a sudden onset of s...
journal_title:Journal of Korean Neurosurgical Society
pub_type:
doi:10.3340/jkns.2013.54.4.344
更新日期:2013-10-01 00:00:00
abstract::GBM is the most common primary brain tumor, but intraventricular GBM is rare and only few cases have been reported in the literature. The authors report a case of 64-year-old man who had a remote history of previous periventricular intracerebral hemorrhage. Brain computed tomography (CT) and magnetic resonance (MR) im...
journal_title:Journal of Korean Neurosurgical Society
pub_type:
doi:10.3340/jkns.2008.44.6.405
更新日期:2008-12-01 00:00:00
abstract:OBJECTIVE:We performed a retrospective analysis of medical records and radiographic images of patients who never underwent spinal treatment including diagnosis. The objective of this study is to explain the biomechanical and physiologic characteristics of cervical alignment related to thoracic inlet angle including T1 ...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2013.53.6.356
更新日期:2013-06-01 00:00:00
abstract:OBJECTIVE:The aims of this study were to investigate the quantitative relationship between pituitary macroadenoma size and degree of visual impairment, and assess visual improvement after surgical resection of the tumor. METHODS:The medical records of patients with pituitary adenoma, who had undergone trans-sphenoidal...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2015.57.1.23
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVE:The objective of this study is to investigate clinical characteristics, management methods and possible causes of intracranial fusiform aneurysm. METHODS:Out of a series of 2,458 intracranial aneurysms treated surgically or endovascularly, 22 patients were identified who had discrete fusiform aneurysms. Clin...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2008.44.3.116
更新日期:2008-09-01 00:00:00
abstract::Inflammatory pseudotumor is an uncommon lesion with unknown etiology characterized by sclerosing inflammation which clinically and radiographically mimics a neoplastic lesion. A 47-year-old man presented with sudden headache and dysarthria. Brain CT scan revealed a 2.6x2.2 cm sized, round, and hyperdense mass in the a...
journal_title:Journal of Korean Neurosurgical Society
pub_type:
doi:10.3340/jkns.2009.45.2.99
更新日期:2009-02-01 00:00:00
abstract::Superior petrosal sinus (SPS) dural arteriovenous fistula (DAVF) is one of tentorial DAVFs with significant morbidity, which usually drains into the petrosal vein and its tributaries. Unless there is a connection with venous sinus, surgical obliteration is required. We present two cases of SPS DAVF which were successf...
journal_title:Journal of Korean Neurosurgical Society
pub_type:
doi:10.3340/jkns.2011.49.4.222
更新日期:2011-04-01 00:00:00
abstract::We report a case of pedicle screw loosening treated by modified transpedicular screw augmentation technique using polymethylmethacrylate (PMMA), which used the anchoring effect of hardened PMMA. A 56-year-old man who had an L3/4/5 fusion operation 3 years ago complained of continuous low back pain after this operation...
journal_title:Journal of Korean Neurosurgical Society
pub_type:
doi:10.3340/jkns.2011.49.1.75
更新日期:2011-01-01 00:00:00
abstract:OBJECTIVE:Although trunk muscles in the lumbar spine preserve spinal stability and motility, little is known about the relationship between trunk muscles and spinal fusion rate. The aim of the present study is to evaluate the correlation between trunk muscles cross sectional area (MCSA) and fusion rate after posterior ...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2016.59.3.276
更新日期:2016-05-01 00:00:00
abstract:OBJECTIVE:This 2009-2011 nation-wide study of adult Koreans was aimed to provide characteristics, medical utilization states, and survival rates for newly diagnosed patients with primary nonmalignant and malignant spine tumors. METHODS:Data for patients with primary spine tumors were selected from the Korean Health In...
journal_title:Journal of Korean Neurosurgical Society
pub_type: 杂志文章
doi:10.3340/jkns.2016.0505.011
更新日期:2017-03-01 00:00:00