1.A Clinical Study on Surgical Treatment of Clavicular Nonunions
Kwaeng Woo KWON ; Dong Jin AHN
The Journal of the Korean Orthopaedic Association 1987;22(5):1127-1131
Six. patients with clavicular nonunion were treated at the Daegu Catholic Hospital from Aug. 1980 to Jun, 1986. Five patients were male and one was female, and their ages ranged from 35 to 52 years. There were hypertrophic nonunion in four patients and atrophic nonunion in two patients; all six patients had symptoms due to nonunion. Factors that might have influenced the development of nonunion in our cases seem to be inadequate operative treatment, severe trauma and inadequate external fixation due to combined injuries. Five patients were treated with semitubular plating and iliac graft, and one was treated with intramedullary K-wire fixation and iliac graft. All patients achieved good union by average 10 weeks postoperatively and symptoms disappeared. It was concluded that symptomatic nonunion of the mid-clavicle could be treated by operation, and the procedure of choice seemed to be rigid internal fixation with plating applied in compression and bone graft.
Clavicle
;
Clinical Study
;
Daegu
;
Female
;
Humans
;
Male
;
Transplants
2.Assesment of the Prognosis of Femoral Neck Fractures: Preoperative and Postoperative Tc
Kwaeng Woo KWON ; Dong Jin AHN
The Journal of the Korean Orthopaedic Association 1987;22(5):1075-1081
In 38 patients with femorsl neck fracture trested at Cstholic Hospital from Aug. 1980 to Jun. 1985, 24 patients were followed for more thsn 2 years. Preoperative bone scanning with 99m Tc MDP was performed in those 24 patients and postoperative follow-up bone scan assesment of the femorsl vascularity was done in 9 patients of them. Following results were obtained. 1 . Tc 99m methylenediphosphonate bone scanning was effective in assesing the femoral head vascularity in the femoral neck fracture patients. 2. The femoral head activity could be changed in the postoperative scanning : there could be further injury to the blood supply during operation or femoral head revascularization after operation 3. Some information about the possibility of future avascular necrosis could be obtained by comparing preoperative and postoperative bone scan in order that early preventive measures might be applied against the late head collapse. 4. It was conculuded that internal fixation should be considered first in the treatment of fresh femoral neck fracture : the indication of head replaement surgery could not be rnade by preoperative bone scan only.
Equidae
;
Femoral Neck Fractures
;
Femur Neck
;
Follow-Up Studies
;
Head
;
Humans
;
Neck
;
Necrosis
;
Prognosis
3.Electroencephalographic sleep findings and dexamethasone suppression test in major psychotic disorders.
Dong Woo KANG ; Kyu Hee HAHN ; Jin Wook SOHN
Journal of Korean Neuropsychiatric Association 1991;30(1):112-124
No abstract available.
Dexamethasone*
;
Psychotic Disorders*
4.Analysis of Angiographic Outcome by Thrombolysis in Myocardial Infarction(TIMI) Frame Count for Primary Stenting in Patients with Acute Myocardial Infarction.
Kyoo Rok HAN ; Woo Jung PARK ; Dong Jin OH
Korean Circulation Journal 2000;30(9):1075-1082
BACKGROUND AND OBJECTIVES: Primary intervention by stent implantation during acute myocardial infarction is a novel strategy to provide better myocardial perfusion compared to thrombolysis or baloon angioplasty. We aimed to assess the reperfusion achieved by primary stenting, employing TIMI frame count for more objective and quantitative measurement. MATERIALS AND METHOD: Measurements for number of frames required to opacify standardized angiographic landmark branch(TIMI frame count) were determined for the coronary arteries of 77 normal controls and 65 patients with acute myocardial infarction who underwent primary stenting within 12 hours of symptom onset. RESULTS: In normal subjects, TIMI frame count for left anterior descending artery(LAD) was 1.3 times of mean count of right coronary artery(RCA) and left circumflex artery(LCx), and significant less than that of TIMI study(22.3+/-4.9 vs 36.2+/-2.6, p<0.05). TIMI frame count for RCA and LCx was similar to results of TIMI study. In infarct related arteries(IRA), corrected TIMI frame count(CTFC) after primary stenting was similar to those of normal control. Frame counts of RCA was larger compared to that of normal control, but statistically insignificant(23.0+/-7.5 vs 17.6+/-3.5, p>0.05). There was no difference of CTFC of non-infarct related arteries between patients and normal controls. CONCLUSION: The TIMI frame count of LAD artery in normal Korean subjects was significantly less than that of American counterpart. In patients with acute myocardial infarction, primary stenting appeared to provide improved coronary flow similar to that observed in normal subjects, as measured by TIMI frame counting.
Angioplasty
;
Arteries
;
Coronary Vessels
;
Humans
;
Myocardial Infarction*
;
Perfusion
;
Reperfusion
;
Stents*
5.Development of a CD-ROM Titled 'Atlas of Pathology' for Medical Students.
Dong Sug KIM ; Yong Jin KIM ; Sun Woo PARK
Korean Journal of Pathology 2000;34(5):374-380
The authors have made a CD-ROM titled 'Atlas of Pathology (AP)' for medical students to understand histopathologic findings with ease. We used a 35 mm film scanner to convert an existing file into digital images. A pathologist and two professional programmers collaborated to create the program 'AtlasMaster 1.0' based on (IBM) PC for organization of previously captured digital images. Minimum system requirement for the 'AP' was Pentium II 166 MHz, 32 MB RAM, Windows 95 or 98, 800 600 resolution, 16-bit color, 20 speed CD-ROM drive. The 'AP' was composed of a execution file (Pathology_Atlas.exe), a DB file (pathology.mdb), and reference files (*.bmp, *.jpg, *.txt). The DB file contained fields for chapter, section, disease entity, and information for location of reference files. About 1,000 color images for various kinds of gross and microscopic pictures were stored in the CD-ROM and those were classified according to the chapters, sections, and disease entities. The 'AP' was easy to manipulate, and had advantages of self-learning for students. It could be applied to other fields in which many images were dealt with, such as histology, radiology, endoscopy, dermatology, and plastic surgery. The 'AP' was handy and very useful for medical students to study pathology and it would be a powerful self-learning tool.
CD-ROM*
;
Dermatology
;
Endoscopy
;
Humans
;
Pathology
;
Students, Medical*
;
Surgery, Plastic
6.DNA Flowcytometry Analysis of Testicular Specimen in Non-obstructive.
Yang Woo LEE ; Jin Dong IM ; Sang Kon LEE
Korean Journal of Urology 2000;41(2):328-332
No abstract available.
DNA*
7.Direct and Indirect Reduction of the Retropulsed Fragments in Thoracolumbar and Lumbar Burst Fractures.
Jin Man WANG ; Dong Jun KIM ; Seok Woo KIM
Journal of Korean Society of Spine Surgery 1998;5(1):70-78
STUDY DESIGN: Thirty-eight patients with thoracolumbar and lumbar burst fractures were evaluated according to the treatment methods of the retropulsed fragments. OBJECTIVE: To confirm the pure effect of ligamentotaxis according to the approaching methods to tile involved area. SUMMARY OF BACK GROUND DATA: Retropulsed fragments were effectively treated by indirect posterior reduction. Regardless of size of the retropulsed fragments, remodelling process of the retropulsed fragments was progressed during follow-up period. METHODS: 38 patients with burst fractures of thoracolumbar and lumbar spine were divided into two groups according to tile reduction method of the retropulsed fragments ; the one group consisted of 18 cases which were treated by posterior instrumentation and indirect reduction(Group I: ligamentotaxis) and the other groups consisted of 20 cases which were treated by posterior instrumentation and posterior direct reduction(Group II). Change of neural canal compromise rate, neurologic status, remodelling process of the retropulsed fragments were measured using pre-, post-operative and follow-up radiographs and CT. RESULTS: Comparing the two groups, neural canal compromise rates were decreased at postoperative period but, there were no significant differences in both groups. There were no correlation of neurologic status and neural canal compromise rate. We could confirm the remodelling process of the retropulsed fragments, but there were no significant changes according to the size of the retropulsed fragments between two groups. CONCLUSIONS: Indirect reduction by posterior instrumentation( ligamentotaxis ) could effectively treat the retropulsed fragments in burst fractures of thoracolumbar and lumbar spine without directs posterior reduction.
Follow-Up Studies
;
Humans
;
Neural Tube
;
Postoperative Period
;
Spine
8.The results of treatment in femoral neck fracture focusing to complications.
Chang Dong HAN ; Dae Yong HAN ; Jin Woo LEE
The Journal of the Korean Orthopaedic Association 1991;26(6):1720-1726
No abstract available.
Femoral Neck Fractures*
;
Femur Neck*
9.Malignant cystosarcoma phyllodes.
Dong Young NOH ; Soo Jin KIM ; Kuk Jin CHOE ; Jin Pok KIM ; Woo Ho KIM
Journal of the Korean Cancer Association 1992;24(5):730-736
No abstract available.
Phyllodes Tumor*
10.Conjunctival Epithelial Cells Auto-Cultivated In Vivo on Human Amniotic Membrane in Rabbits.
Jung Min WOO ; Woo Jin JEUNG ; Woo Chan PARK
Journal of the Korean Ophthalmological Society 2006;47(5):812-817
PURPOSE: The purpose of this study was to investigate the phenotype of conjunctival epithelial cells auto-cultivated in vivo on human amniotic membrane (CIVAMs) in rabbits for ocular surface reconstruction. METHODS: A fornix based-conjunctival flap 8 mm in diameter was made in 12 eyes of rabbits. Amniotic membrane was implanted into the conjunctival defects. Rabbit conjunctival epithelial cells were cultivated in vivo on amniotic membrane for a week. A frozen section was made of the excised specimen. To investigate the phenotype of CIVAMs, Hematoxylin-eosin staining, immunohistochemical staining to anti-MUC5AC (monoclonal antibody to conjunctival goblet cell mucin), and transmission electron microscopy were performed. RESULTS In 11 of 12 eyes, conjunctival epithelial cells grew successfully on amniotic membrane. Light microscopy demonstrated two to three layers of cuboidal epithelial cells and two to three layers of stratified epithelial cells in CIVAMs. CIVAMs exhibited non-goblet epithelial differentiation as determined by immunohistochemistry to anti-MUC5AC. Transmission electron microscopy of CIVAMs showed fine structure similar to that of normal conjunctival epithelial cells. CONCLUSIONS: CIVAMs showed morphological findings similar to normal conjunctival epithelial cells and are expected to accomplish more rapid reconjunctivalization than simple amniotic membrane transplantation. We expect that CIVAMs will be adopted in treating conjunctival burn, symblepharon, conjunctiva-scleral ulcer, and filtering bleb leakage with conjunctival defects.
Amnion*
;
Blister
;
Burns
;
Epithelial Cells*
;
Frozen Sections
;
Goblet Cells
;
Humans*
;
Immunohistochemistry
;
Microscopy
;
Microscopy, Electron, Transmission
;
Phenotype
;
Rabbits*
;
Ulcer