1.Primary Lymphomatoid Granulomatosis in the Frontal Lobe: Case Report.
Kyu LEE ; Kyeong Seok LEE ; Hack Gun BAE ; Il Gyu YUN ; Bark Jang BYUN ; In Soo LEE
Journal of Korean Neurosurgical Society 1991;20(10-11):954-959
We report a case of cerebral lymphomatoid granulomatosis in a 50-year-old man. Lymphomatoid granulomatosis is an unusual condition which usually presents as a pulmonary manifestation, which occasionally affects the brain, and causes focal inflammatory lesions. Primary cerebral lymphomatoid granulomatosis is very rare. We describe a case of lymphomatoid granulomatosis in the left frontal lobe without pulmonary involvement.
Brain
;
Frontal Lobe*
;
Humans
;
Lymphomatoid Granulomatosis*
;
Middle Aged
2.The Fixation Method according to the Fracture Type of the Greater Trochanter in Unstable Intertrochanteric Fractures Undergoing Arthroplasty.
Doohoon SUN ; Byeong Seop PARK ; Gun Il JANG ; Bongjoo LEE
Hip & Pelvis 2017;29(1):62-67
PURPOSE: We conducted a study on patients who underwent hip joint arthroplasty because of unstable femur intertrochanteric fractures with greater trochanter bony fragments. After dividing patients into three groups depending on their fracture patterns, we evaluated the clinical and radiological outcomes of different operation methods applied to each of these groups. MATERIALS AND METHODS: Using Evan's classification, we defined an unstable intertrochanteric fracture as those characterized as stage 4 or 5. Of the 137 patients presenting with an intertrochanteric fracture with osteoporosis (bone mineral density, <−2.5) between March 2014 and October 2015, 63 met the eligibility criteria and were included in this study. Next, patients were divided into three groups based on their greater trochanter fracture patterns (discerned with three-dimensional computed tomography images); different fixation methods were applied to each group by a single orthopaedic surgeon. RESULTS: Taken as a whole, 50 out of 63 patients experienced no reduction in walking distance in their daily lives. Harris hip score increased from 74.8 to 85.7 point and we considered this a relatively good result. Radiologically, we observed complete bone union in 62 cases (98.4%); the lone exception was in a patient who experienced osteolysis. There were also 3 cases who removed greater trochanter reattachment device due to broken implant and 1 case of dislocation. CONCLUSION: The different fixation methods applied to three distinct groups with varying fractures patterns were successful in achieving proper reduction and fixation of greater trochanteric fractures. We also observed reduced bone union periods when arthroplasty was performed in patients with unstable intertrochanteric fractures. Lastly, we believe these approaches may also aid in achieving early ambulation and early rehabilitations.
Arthroplasty*
;
Classification
;
Dislocations
;
Early Ambulation
;
Femur*
;
Hip
;
Hip Fractures*
;
Hip Joint
;
Humans
;
Methods*
;
Miners
;
Osteolysis
;
Osteoporosis
;
Walking
3.Standardization of Disease, Diagnostic and Neurosurgical Procedures for the Investigation of Korean Neurosurgical Epidemiology - Part 2: Clinical Application -.
Bum Tae KIM ; Won Han SHIN ; Soon Kwan CHOI ; Jae Won DOH ; Hack Gun BAE ; Kyeong Seok LEE ; Il Gyu YUN ; Jae Chil JANG ; Bark Jang BYUN
Journal of Korean Neurosurgical Society 1999;28(7):1049-1056
OBJECTIVE: Using the standardization of disease diagnosis of disease, and surgical procedures, the authors have made a clinical application for the analysis of inpatient data with the ability to search for information pertinent for writing of clinical articles. METHODS: A client-server system and database software was developed for networking. For clinical application, a computerized daily report has been developed. Data from Neurosurgical patients admitted at Soonchunyang University Hospital from January to December 1998 were analyzed with this system. Data for clinical articles was obtained using the search mode, information such as orbital infarction syndrome following intracranial aneurysm surgery and epidemiological analysis or geriatric neurosurgical patients. RESULTS: For the daily report it takes approximately 10 minutes to input the patients demographic information, name of disease, diagnosis and surgical procedure. The daily report also numbers and sorts the inpatients according to large categories of diagnosis, reports the ratio between inpatients and operative patients. The annual report that was obtained was very accurate and gave rapid statistics for the one year. By retrospective study for the past 18 years, we calculated the incidence of orbital infarction syndrome following intracranial aneurysm surgery as 1.4%, and also estimated the population of geriatric inpatients as 18.3% by retrospective study. CONCLUSIONS: It has been found to be most useful to make a daily and annual report for tracking and research purposes. For use in clinical articles, it can be possible to do a search of the patients using the standardized disease, diagnosis and neurosurgical procedures application and obtain pertinent information in a timely manner.
Diagnosis
;
Epidemiology*
;
Humans
;
Incidence
;
Infarction
;
Inpatients
;
Intracranial Aneurysm
;
Neurosurgical Procedures*
;
Orbit
;
Retrospective Studies
;
Writing
4.Standardization of Disease, Diagnostic and Neurosurgical Procedures for the Investigation of Korean Neurosurgical Epidemiology - Part 1: Development of Model for Computerization -.
Bum Tae KIM ; Won Han SHIN ; Soon Kwan CHOI ; Jae Won DOH ; Hack Gun BAE ; Kyeong Seok LEE ; Il Gyu YUN ; Jae Chil JANG ; Bark Jang BYUN
Journal of Korean Neurosurgical Society 1999;28(7):1032-1048
OBJECTIVE: The the international classification of disease and surgical procedure has been found to be a lengthy and time-consuming text for use by neurosurgeons. A more subject matter related classification system is needed for use by this specialty. The author has developed a more comprehensive and standardized classification system specified for diagnosis of neurological disease and neurosurgical procedures. METHODS: Standardization of disease was completed by modifying the name of disease according to that which was used for daily report past 10 years, and from textbook of neurosurgery. The fields of international coding are continued in each. Neurosurgical procedures were designated and modified according to Current Procedure Terminology 96. Client-server system will be used for networking and database software applications have been developed. RESULTS: Disease was classified in 14 large categories and 379 subcategories. Diagnosis was classified in 12 large categories and 43 subcategories. Neurosurgical procedure has 20 large and 202 subcategories. The international coding system such as ICD-10 and ICD-9CM is maintained for the diagnosis and procedures to each category. CONCLUSIONS: It could be possible to make and use a standardized database model of disease, diagnosis and neurosurgical procedures to be used by physician.
Classification
;
Clinical Coding
;
Diagnosis
;
Epidemiology*
;
International Classification of Diseases
;
Neurosurgery
;
Neurosurgical Procedures*
5.Intradural Extramedullary Spinal Metastasis: A Case Report.
Il Young SHIN ; Jae Won DOH ; Seok Mann YOON ; Kyeong Seok LEE ; Hack Gun BAE ; Il Gyu YUN ; Soon Kwan CHOI ; Bark Jang BYUN
Journal of Korean Neurosurgical Society 2000;29(8):1085-1088
No abstract available.
Neoplasm Metastasis*
6.A Case of Thalamic Abscess: Case Report.
Il Tae SOHN ; Hack Gun BAE ; Jae Won DOH ; Kyeong Seok LEE ; Il Gyu YUN ; Bark Jang BYUN
Journal of Korean Neurosurgical Society 1996;25(10):2127-2130
The authors report a rare case of thalamic abscess in a 38-year old male who suffered from a ventricular septal defect. Preoperative axial magnetic resonance imaging(MRI) showed two ring enhancing masses on T1-weighted image and a hypointensity of dark rim on T2-weighted image. Purulent material was aspirated by computerized tomography(CT)-guided stereotactic procedure following antibiotic therapy for 3 days. No growth was obtained in the culture of the purulent material. The disturbance of left ocular movement before surgery was completely recovered. Even though the abscess wall is uniform in thickness, it is difficult to distinguish from tumor. A rim like hypointensity surrounding the mass on T2-weighted MRI is helpful in distinguishing both lesions.
Abscess*
;
Adult
;
Heart Septal Defects, Ventricular
;
Humans
;
Magnetic Resonance Imaging
;
Male
7.A Case of Thalamic Abscess: Case Report.
Il Tae SOHN ; Hack Gun BAE ; Jae Won DOH ; Kyeong Seok LEE ; Il Gyu YUN ; Bark Jang BYUN
Journal of Korean Neurosurgical Society 1996;25(10):2127-2130
The authors report a rare case of thalamic abscess in a 38-year old male who suffered from a ventricular septal defect. Preoperative axial magnetic resonance imaging(MRI) showed two ring enhancing masses on T1-weighted image and a hypointensity of dark rim on T2-weighted image. Purulent material was aspirated by computerized tomography(CT)-guided stereotactic procedure following antibiotic therapy for 3 days. No growth was obtained in the culture of the purulent material. The disturbance of left ocular movement before surgery was completely recovered. Even though the abscess wall is uniform in thickness, it is difficult to distinguish from tumor. A rim like hypointensity surrounding the mass on T2-weighted MRI is helpful in distinguishing both lesions.
Abscess*
;
Adult
;
Heart Septal Defects, Ventricular
;
Humans
;
Magnetic Resonance Imaging
;
Male
8.A Prospective Study on the Incidence, Patterns and Premorbid Conditions of Traumatic Subdural Hygroma.
Il Tae SOHN ; Kyeong Seok LEE ; Jae Won DOH ; Hack Gun BAE ; Il Gyu YUN ; Bark Jang BYUN
Journal of Korean Neurosurgical Society 1997;26(1):87-93
The origin and clinical importance of subdural hygroma(SDG) are still uncertain. Its pathogenetic mechanism and natural history have not yet been settled. Although the incidence of traumatic SDG has been reported to be 5-20% of posttraumatic space-occupying lesions, the true incidence has not been documented in prospective study. Therefore, authors have tried to determine the incidence of traumatic SDG prospectively during past six months. Serial computed tomography(CT) or magnetic resonance imaging(MRI) studies were done in all patients who were admitted to our department after head injuries. Data on the age, sex, Glasgow coma scale(GCS) on admission, and initial CT findings were collected and analyzed to determine the true incidence, pattern and premorbid conditions for the development of traumatic SDG. Serial CT or MRI scans were performed on the date of admission, the second to sixth hospital day, and the seventh to fourteenth hospital day. Study population consisted of 115 patients, excluding 31 expired, discharged, or transferred patients within a week. Subdural hygroma was noted in 42(35.6%) patients. It shared 45.2% of posttraumatic mass lesion. More than half (54.7%) of patients aged 40 or more had subdural hygromas. They were generally delayed lesions, due to the fact that most of them(81%) were observed at four days or more after the injury. All hygromas were located at the frontal or fronto-temporo-parietal regions. Bilaterality was seen in 54.7%. SDGs occurred earlier when the age of the patients were 40 years old or more(p=0.037). It occurred earlier when the initial CT scans were normal, when there was no accompanying traumatic intracranial lesions, and high GCS on admission. However, these differences were statistically not significant(p>0.05). These results suggest that the premorbid conditions for the development of subdural hygroma were sufficient potential subdural space and separation of the dural border cell layer, although former seemed to be more important that the later. Osmotic dehydration in the aged victims should be serially reevaluated, because the subdural hygroma may develop when the intracranial pressure is excessively low.
Adult
;
Coma
;
Craniocerebral Trauma
;
Dehydration
;
Epidemiology
;
Humans
;
Incidence*
;
Intracranial Pressure
;
Lymphangioma, Cystic
;
Magnetic Resonance Imaging
;
Natural History
;
Prospective Studies*
;
Subdural Effusion*
;
Subdural Space
;
Tomography, X-Ray Computed
9.Predicting Prognosis using Neurotrauma Motor Index in Spinal Cord Injury.
Gang Mok LEE ; Kyeong Seok LEE ; Hack Gun BAE ; Jae Won DOH ; Il Gyu YUN ; Bak Jang BYUN
Journal of Korean Neurosurgical Society 1994;23(5):522-528
We present a series of 97 patients with spinal cord injury. Those patients were treated at Soonchunhyan University Chonan Hospital during six-year-period(January 1986-December 1992), and followed up for at least 3 months. They were divide into four groups ; complete-surgical, complete-conservative, partial-surgical, and partial-conservative. Male to female ratio was 3.6:1, and the peak age was the fifth decade. Passenger's traffic accident(46%) was the most common cause of injury and fall/slip(39%) followed next. Level of spinal injury was cervical in 51%, thoracic in 29%, lumbar in 13%, and others in 7%. Type of injury was fracture-dislocation in 31%, dislocation in 19%, compression fracture in 19%, burst fracture in 18%, cord injury without bony lesion in 7%, and others in 7%. Cord injury was complete in 36 patients(37%) and partial in 61 patients(63%). Surgery was performed in 20 patients with complete cord injury and 34 patients with partial injury. Majority of operations were performed for spinal stability, and posterior instrumentation was the most commonly used operative method. The mean neurotrauma motor index on admission was 44.1 in the complete-surgical group, 39.5 in complete-conservative group, 70.1 in partial-surgical group, and 63.2 in partial-conservative group. It improved to 52.5, 50.3, 90.4, 80.3 at 3 months, and 53.4, 51.7, 91.8, 82.0 at final examination(mean follow-up period was 182.2 days), respectively. The mean values of the final index were higher in the surgically treated groups than the conservatively treated groups, but these differences were not statistically significant(student t-test p>0.1) The mean recovery rate was 14.2% in the complete-surgical group, 17.7% in complete-conservative group, 66.1% in partial-surgical group, and 46.1% in partial-conservative group at 3 months. It improved to 16.6%, 19.3%, 70.0%, and 48.7% at final examination, respectively. The mean recovery rates were higher in the partially injured groups than the completely injured groups(student t-test, p<0.01), regardless the methods of treatment. The final neurotrauma motor index was significantly(regression analysis, p<0.01) related to the initial index except the partial-surgical group. Neurotrauma motor index was a useful method for assessing the injury severity, comparing the recovery rate and predicting prognosis.
Chungcheongnam-do
;
Dislocations
;
Female
;
Follow-Up Studies
;
Fractures, Compression
;
Humans
;
Male
;
Prognosis*
;
Spinal Cord Injuries*
;
Spinal Cord*
;
Spinal Injuries
10.Surgical Results of Posterior Arthrodesis in Traumatic Atlantoaxial Instability: Wire Fixation vs Screw Fixation.
Jae Won DOH ; Kyeong Seok LEE ; Hack Gun BAE ; Il Gyu YUN ; Soon Kwan CHOI ; Bark Jang BYUN
Journal of Korean Neurosurgical Society 1999;28(6):787-795
OBJECTIVE: Although posterior wiring techniques have been commonly used with good results in treating the traumatic atlantoaxial instabilities, screw fixation technique has been gaining popularity to secure atlantoaxial arthrodesis in recent years. The purpose of this study is to compare the surgical results of posterior arthrodesis for the traumatic atlantoaxial instability between these two methods. METHODS: Twenty patients underwent 21 procedures over a 6-year period with a mean follow-up of 23 months. The most common condition of traumatic atlantoaxial instability was dens fracture(15 patients) followed by transverse atlantal ligament injury(4 patients), and traumatic os odontoideum(2 patients). Thirteen posterior wiring and eight posterior screw fixations were performed. Among 13 wiring methods, nine Galli fusions, two occipito-cervical fusions, one Brooks fusion, and one C1-C3 fusion were done. RESULTS: No patient developed neurological worsening after surgery. Compared to wire method, all patients of screw group had significant pain reduction when the patients was younger than 50 years old(p=0.01). The postoperative changes in distances of space available for cord(SAC) was not statistically significant between wire and screw methods(p=0.7). The rate of complication(23% in wire vs 25% in screw) was comparable to two methods. Although two screw malposition(25%) among screw fixations were developed, all revealed solid fusion without additional surgeries. The rate of fusion(85% in wire vs 100% in screw) was excellent in screw group. Postoperative loss of reduction, including redisplacement and kyphosis, was present only in wire group(31%). Two(15%) of wire fusions had redisplacement; both of these patients were type 2 dens fracture. Three procedures(23%) of wire fusions resulted in kyphotic change which occurred when delayed surgeries were done between 40 days and 90 days(mean: 63 days) after trauma. CONCLUSION: Considering both reduction loss and fusion rate, wire method caused more spinal deformity than screw method(38% vs 0%). This study demonstrates that screw method is a better surgical option for management of traumatic atlantoaxial instability.
Arthrodesis*
;
Congenital Abnormalities
;
Follow-Up Studies
;
Humans
;
Kyphosis
;
Ligaments