1.A CLINICAL STUDY OF MAXILLARY SINUS GRAFT FOR IMPLANT PLACEMENT
Lae Yeun PARK ; Jong Han LEE ; O Hwan KIM
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 1998;20(2):166-172
Bone Resorption
;
Dentition
;
Humans
;
Inlays
;
Jaw
;
Jeollabuk-do
;
Maxilla
;
Maxillary Sinus
;
Osteotomy
;
Prosthodontics
;
Retrospective Studies
;
Transplants
2.The Early to Emergency Surgery on the Deteriorating Aneurysms.
In Suk HAMM ; Yeun Mook PARK ; Seung Lae KIM
Journal of Korean Neurosurgical Society 1989;18(6):852-860
The decision of proper time for operation on ruptured aneurysm is a very important tactic of treatment, because of the following major complications after subarachnoid hemorrhage. Recently it is widely accepted opinion that the ruptured aneurysm should receive an early operation for lower mortality and morbidity by preventing possible complications after subarachnoid hemorrhage such as rebleeding, symptomatic vasospasm and even hydrocephalus. Since 1985, we applied early to emergency surgery to the clinically deteriorating or non improving patients after aneurysm rupture and delayed surgery to the ameliorating patients who were placed under close observation. The early to emergency surgery on poor risk patient was performed within 48 hours after recent subarachnoid hemorrhage and delayed surgery was done after 2 weeks. Of the selective 95 poor-condition patients admitted to Kyungpook National University Hospital over the past 4 years from 1984, 60 got early surgeries and 35 delayed surgeries. Among the 60 patients in the early group, 22 patients with considerable intracranial hemorrhage were exempted from this comparative study. A few cases of vertebrobasilar aneurysms were not included in this paper for a little value in significance. In this prospective study, we evaluated the results of early and delayed surgeries of poor risk patients through clinical analyses and comparison, and we could gain better results from early surgeries.
Aneurysm*
;
Aneurysm, Ruptured
;
Emergencies*
;
Gyeongsangbuk-do
;
Humans
;
Hydrocephalus
;
Intracranial Hemorrhages
;
Mortality
;
Prospective Studies
;
Rupture
;
Subarachnoid Hemorrhage
3.The Clinical and Radiological Analysis of Shunt-Dependent Hydrocephalus after Acute Hydrocephalus in Surgical Aneurysmal Patients.
Yong Hwan SHIN ; Jeong Hyun HWANG ; In Suk HAMM ; Joo Kyung SUNG ; Sung Kyoo HWANG ; Yeun Mook PARK ; Seung Lae KIM
Journal of Korean Neurosurgical Society 2000;29(11):1476-1483
No abstract available.
Aneurysm*
;
Humans
;
Hydrocephalus*
4.Posterior C1-2 Transarticular Screw Fixation without C1-2 Sublaminar Wiring in Atlantoaxial Instability.
Yong Hwan SHIN ; Jeong Hyun HWANG ; Joo Kyung SUNG ; Sung Kyu HWANG ; In Suk HAMM ; Yeun Mook PARK ; Seung Lae KIM
Journal of Korean Neurosurgical Society 2000;29(11):1469-1475
No abstract available.
5.Anterior Screw Fixation of Type II Odontoid Fracture.
Myung Jin KIM ; Jeong Hyun HWANG ; Joo Kyung SUNG ; Sung Kyu HWANG ; In Suk HAMM ; Yeun Mook PARK ; Seung Lae KIM
Journal of Korean Neurosurgical Society 2000;29(11):1461-1468
No abstract available.
6.Spontaneous Hematomyelia: Case Report.
Jeong Hyun HWANG ; Joo Kyung SUNG ; Sung Kyoo HWANG ; In Suk HAMM ; Yeun Mook PARK ; Seung Lae KIM
Journal of Korean Neurosurgical Society 2000;29(3):411-419
No abstract available.
Spinal Cord Vascular Diseases*
7.Posterior and Anterolateral Approaches in a Single Stage to Dumbbell Tumors of the Spine.
Kyu Hyup CHO ; Yeun Mook PARK ; Seung Lae KIM ; June Sik PARK ; Bong Hyun CHANG
Journal of Korean Neurosurgical Society 1996;25(4):802-811
The surgical approach to spinal tumors varies not only with the level and location of the tumor, but also with the type and extent of the tumor. Some of the dumbbell neurofibroma(neurilemmoma) can be removed through simple laminectomy, but usually are approached through two separate incisions by two stages. In this report, posterior and anterolateral approaches in a single stage to dumbbell neurofibroma(neurilemmoma) of the spinal region are described. This approach provides full exposure of intra- and paraspinal portions of the tumor, thus permitting safe dissection and total removal. Six patients who underwent this procedure are described to illustrate its application.
Humans
;
Laminectomy
;
Neurofibroma
;
Spine*
8.A Comparison of Posterolateral and Posterior Interbody Fusion in the Surgical Treatment of Lumbar Spondylolisthesis.
Jae Chan PARK ; Joo Kyung SUNG ; Sung Kyoo HWANG ; In Suk HAMM ; Seung Lae KIM ; Yeun Mook PARK
Journal of Korean Neurosurgical Society 1996;25(11):2258-2261
From November 1992 to October 1994, 71 patients with spondylolisthesis underwent transpedicular fixation and fusion using VSP system. Two groups of were studied, in order to compare comcomitant posterolateral and posterior lumbar interbody fusion with regard to operating time, blood loss, degree of reduction, fusion rate, clinical results, and complications. Results showed 31 good, 11 fair, and 3 poor in the posterolateral fusion group and 23 good, 1 fair, and 2 poor in the posterior lumbar interbody fusion group. Implant failure occurred in 2 patients and consisted of screw breakage. Posterior lumbar interbody fusion with internal fixation provides a highly successful method for maintaining interbody height and obtaining arthrodeis.
Humans
;
Spondylolisthesis*
9.Chromosomal localization and neural distribution of voltage dependent calcium channel alpha1A and alpha1E subunit genes.
Hyun KIM ; Soo Yeun PARK ; Young Suk SUH ; Im Joo RHYU ; Hyung Lae KIM ; Sun Hwa PARK
Korean Journal of Anatomy 1998;31(2):191-199
Fluorescent in situ hybridization using human genomic DNA probes was performed to localize genes encoding the alpha1A and alpha1E of voltage dependent calcium channels (VDCCs) in the human chromosome and the mRNA expression of these two alpha1 subunits of VDCC was demonstrated in the 18 day old embryo (E18) and adult rat brain by in situ hybridization histochemistry. The genes for the VDCC alpha1A and alpha1E were specifically localized on human chromosome 19p13.1 and 1q25, respectively. In 18 days old rat embryos, the mRNAs of the VDCC alpha1A and alpha1E were predominently expressed in the nervous system including brain and spinal cord. In adult rat brain, the expression pattern of each subunit was extremely different. The expression of alpha1A mRNA was strong in the purkinje cells of cerebellum and CA3 area of hippocampus, relatively high level of expression was found in the dentate gyrus, CA1 area of hippocampus, superficial layer of cerebral cortex and olfactory mitral cells. Whereas alpha1E was highly expressed in the dentate gyrus, CA1-3 area of hippocampus, medial habenula nucleus of thalamus and olfactory mitral and internal granule cells and relatively high level of expression was found in the Purkinje cells of cerebellum, cerebral cortex and caudate-putamen. Until now, no neurological disorder has been mapped to 1q25, location of VDCC alpha1E gene. Recently, it has been reported that mutation of VDCC alpha1A gene causes episodic ataxia type 2 (EA-2) and spinocerebellar ataxia 6 (SCA6). These reports comfirm the our experimental results of chromosomal mapping and prominent cerebellar expression of VDCC a1A gene.
Adult
;
Animals
;
Ataxia
;
Brain
;
Calcium Channels*
;
Calcium*
;
Cerebellum
;
Cerebral Cortex
;
Chromosomes, Human
;
Dentate Gyrus
;
DNA Probes
;
Embryonic Structures
;
Habenula
;
Hippocampus
;
Humans
;
In Situ Hybridization
;
In Situ Hybridization, Fluorescence
;
Nervous System
;
Nervous System Diseases
;
Purkinje Cells
;
Rats
;
RNA, Messenger
;
Spinal Cord
;
Spinocerebellar Ataxias
;
Thalamus
10.Ventricular Dilatation by Early Surgery on Aneurysms with SAH.
Sang Pyung LEE ; Jang Ku KWEON ; Byung Jik KANG ; Sung Kyoo HWANG ; In Suk HAMM ; Yeun Mook PARK ; Seung Lae KIM
Journal of Korean Neurosurgical Society 1990;19(7):912-919
Among 202 aneurysmal patients with SAH who were admitted to Kyungpook National University Hospital from Jan. 1984 through Jan. 1988, the incidence of ventricular dilatation confirmed by postoperative follow-up brain CT scannings was 32.2%(65 cases). And 33 cases(19.3%) was in mild ventricular dilatation, 9 cases(4.5%) was in moderate and 23 cases(11.4%) in severe who needed the shunting procedure were analysed. The incidence of ventricular dilatation to the site of aneurysm was highest in A-com A. aneurysm(42.2%), followed by P-com A. aneurysm(36.4%) and MCA aneurysm(11.3%). The incidence of ventricular dilatation and the need for shunting was higher in multiple bleeding patients than the single. The good risk patients had meaningfully lower incidence of ventricular dilatation than the poor risk group. In the delayed surgical group showed significantly more numbers of ventricular dilatation needing the shunt than the cases in early group.
Aneurysm*
;
Brain
;
Dilatation*
;
Follow-Up Studies
;
Gyeongsangbuk-do
;
Hemorrhage
;
Humans
;
Incidence
;
Tomography, X-Ray Computed