1.The Clinical study of Pelviscopic Surgery.
Soon In JEONG ; Jae Hyung NA ; Hyuk JUNG
Korean Journal of Obstetrics and Gynecology 2000;43(4):604-610
OBJECTIVE: Pelviscopic surgery has been used in the treatment of some gynecologic disease. And now, it is applied in almost all cases of gynecologic disease. This study is performed to evaluate the clinical advantages of pelviscopic surgery. Mehtods: From March, 1997 to February 1999, total 310 cases were received laparoscopic surgery on dept. OBGY of Seonam University hospital and Chosun University hospital. We reviewed the chart and analyzed these cases about age, parity, clinical indication, operation type, duration of hospitalization, operation time and complication. RESULTS: The results of this study were summarized as follows : 1. The mean age of patients was 32.1 years old with ranges between 15 and 54 years old. 2. The mean parity of the patients was 1.33. 3. The common indications were ectopic pregnancy (33.5%), ovarian cyst (28.4%) and uterine myoma (16.5%). 4. The frequent types of surgery were salpingectomy (23.2%), adnexectomy (22.6%) and laparoscopy assisted vaginal hysterectomy (LAVH) (13.9%). 5. The operation time was variable according to the types of operation and difficulty. 6. The mean duration of hospitalization was 4.17 days. 7. The most frequent complication was hemorrhage at the trocar site. CONCLUSION: Pelviscopic surgery is useful and recommended for the treatment of gynecologic disease, because this is safe and has many advantages. So, we expect the number and indication of pelviscopic surgery will be increased in future.
Female
;
Genital Diseases, Female
;
Hemorrhage
;
Hospitalization
;
Humans
;
Hysterectomy, Vaginal
;
Laparoscopy
;
Leiomyoma
;
Middle Aged
;
Ovarian Cysts
;
Parity
;
Pregnancy
;
Pregnancy, Ectopic
;
Salpingectomy
;
Surgical Instruments
2.A Case of Multicystic Renal Dysplasia with Chromosomal Abnormality.
Myung Jae LEE ; Soon In JUNG ; Jae Hyung NA ; Jae Hong KIM ; Jong Jae JUNG
Korean Journal of Perinatology 1999;10(1):56-60
Holoprosencephaly is a rare and complex malformation affecting the cleavage of the developing forebrain and is usually associated with defects of the mid Face. We have experienced a case of holoprosencephaly, diagnosed prenatally by ultrasound examination at 31 weeks of pregnancy in a 31-year-old primigravida woman. This case is characterized by holoprosencephaly, cleft palate, cleft lip, left renal aplasia and right renal hypertrophy. The chromosomal study showed a deletion of the long arm of chromosome 7, 46, XX, del(7)(q32), We report with a terminal deletion of chromosome 7q associated with atypical clinical picture and holoprosencephaly.
Adult
;
Arm
;
Chromosome Aberrations*
;
Chromosomes, Human, Pair 7
;
Cleft Lip
;
Cleft Palate
;
Female
;
Holoprosencephaly
;
Humans
;
Hypertrophy
;
Multicystic Dysplastic Kidney*
;
Pregnancy
;
Prosencephalon
;
Ultrasonography
3.Temporal Bone Trauma: Correlative Study between CT Findings and Clinical IVlanifestations.
Jung Hee KIM ; Hyung Jin KIM ; Jae Hyoung KIM
Journal of the Korean Radiological Society 1994;31(5):813-818
PURPOSE: To assess how accurately computed tomography (CY) can demonstrate the abnormal findings which are believed to cause the clinical signs and symptoms of hearing loss (HL), vertigo and facial paralysis (FP) in patients with temporal bone trauma. MATERIALS AND METHODS: The authors studied CT scans of 39 ears in 35 patients with temporal bone trauma. CT scans were performed with 1-115 mm slice thickness and table incrementation. Both axial and coronal scans were obtained in 32 patients and in three patients only axial scans were obtained. We analyzed CT with special reference to the structural abnormalities of the external auditory canal, middle ear cavity, bony labyrinth, and facial nerve canal, and correlated these findings with the actual clinical signs and symptoms. As to hearing loss, we evaluated 32 ears in which pure tone audiometry or brainstem evoked response audiometry had been performed. RESULTS: With respect to the specific types of HL, CT accurately showed the abnormalities in 84% (16/19) in conductive HL, 100% (2/2) in sensorineural HL, and 25% (2/8) for mixed HL. When we categorized HL simply as conductive and sensorineural, assuming that mixed be the result of combined conductive and sensorineural HL, CT demonstrated the abnormalities in 89% (24/27) for conductive HL and 50% (5/10) for sensorineural HL. Concerning vertigo and FP, CT demonstrated abonormalities in 67%(4/6), and 29% (4/14), respectively. CONCLUSION: Except for conductive HL, CT seems to have a variable degree of limitation for the demonstration of the structural abnormalities resulting sensorineural HL, vertigo or facial paralysis. It is imperative to correlate the CT findings with the signs and symptoms in those clinical settings.
Audiometry
;
Audiometry, Evoked Response
;
Brain Stem
;
Ear
;
Ear Canal
;
Ear, Inner
;
Ear, Middle
;
Facial Nerve
;
Facial Paralysis
;
Hearing Loss
;
Humans
;
Temporal Bone*
;
Tomography, X-Ray Computed
;
Vertigo
4.Statistical Analysis for In-Patients and Mortality Rate.
Eui Hyung KIM ; Suk Jung CHANG ; Jae Sook MA
Journal of the Korean Pediatric Society 1984;27(7):639-647
No abstract available.
Mortality*
5.Influence of Thickness of Empress 2 Ceramic on Fracture Strength.
Jung Woo KOH ; Jae Ho YANG ; Sun Hyung LEE
The Journal of Korean Academy of Prosthodontics 2000;38(4):446-460
All ceramic restorations have had a more limited life expectancy than metal ceramic crowns because of their lower strength. The relatively lower strength has limited the use of all-ceramic crowns to the areas where occlusal loads are lower. Therefore many researches have been done to increase the strength of all-ceramic crowns. IPS Empress 2 is a new type of lithium disilicate glass-ceramic with enhanced physical characteristics which has been in use clinically since 1998. Previous researches reported that the flexural strength of all-ceramic material was greater than 300MPa, and all-ceramic crowns can be used in staining or layering technique. The objective of this study was to investigate the influence of the thickness of IPS Empress 2 ceramic on fracture strength. Both staining technique and layering technique was investigated. Vita VMK was used as control. For all three groups, five specimens each of 0.8mm, 1.0mm, 1.4mm, 1.8mm, and 2.2mm thickness (a total of 75 specimens) were prepared. Control group: Vita VMK Porcelain specimens were prepared with dentine ceramic and liquid glazing was done. Group I: IPS Empress 2 were prepared with staining technique and stained twice and glazed once. Group II : IPS Empress 2 were prepared with layering technique and glazed after wash firing. The thickness and diameter of the specimen were measured and controlled after specimen preparation. Biaxial Flexure Test (ASTM Standard F394-78) was adopted as this test method produces results least affected by the edge condition of the specimens. Fracture strength was measured with Instron Universal Testing Machine. Conclusions are as follow : 1. The fracture strength was increase in order of control group, test group I, test group II. 2. Fracture strength of the group I(Empress 2 Staining) was 65.54 N in 0.8mm, 155.2 N in 1.0mm, 233.5 N in 1.44mm, 434.5 N in 1.8mm, and 600.1 N in 2.2mm. 3. Fracture strength of the group II (Empress 2 Layering) was 190.0 N in 0.8mm, 283.5 N in 1.0mm, 437.2 N in 1.4mm, 732.0 N in 1.8mm, and 1115.0 N in 2.2mm. 4. No statistical difference was found in flexural strengths according to thickness in a specified group(p>0.05).
Ceramics*
;
Crowns
;
Dental Porcelain
;
Dentin
;
Fires
;
Life Expectancy
;
Lithium
6.FRACTURE STRENGTH AND MARGINAL FIT OF IN-CERAM, COPY-MILLED IN-CERAM, AND IPS EMPRESS 2 ALL-CERAMIC BRIDGES.
Jung Won HWANG ; Jae Ho YANG ; Sun Hyung LEE
The Journal of Korean Academy of Prosthodontics 2001;39(6):641-658
All-ceramic restorations have become an attractive alternative to porcelain-fused-to-metal crowns. In-Ceram, and more recently IPS Empress 2 were introduced as a new all-ceramic system for single crowns and 3-unit fixed partial dentures. But their strength and marginal fit are still an important issue. This study evaluated the fracture resistance and marginal fit of three systems of 3 unit all-ceramic bridge fabricated on prepared maxillary anterior resin teeth in vitro. The 3 all-ceramic bridge systems were: (1) a glass-infiltrated, sintered alumina system (In-Ceram) fabricated conventionally, (2) the same system with copy-milled alumina cores (copy-milled In-Ceram), (3) a heat pressed, lithium disilicate reinforced glass-ceramic system (IPS Empress 2). Ten bridges of each system with standardized design of framework were fabricated. All specimens of each system were compressed at 55degree at the palatal surface of pontic until catastrophic fracture occurred. Another seven bridges of each system were fabricated with standard method. All of the bridge-die complexes were embedded in epoxy resin and sectioned buccolingually and mesiodistally. The absolute marginal discrepancy was measured with stereomicroscope at x50 power. The following results were obtained: 1. There was no significant difference in the fracture strength among the 3 systems studied. 2. The Weibull modulus of copy-milled In-Ceram was higher than that of In-Ceram and IPS Empress 2 bridges. 3. Copy-milled In-Ceram (112micrometer) exhibited significantly greater marginal discrepancy than In-Ceram (97micrometer), and IPS Empress 2 (94micrometer at P=0.05. 4. The lingual surfaces of the ceramic crowns showed smaller marginal discrepancies than mesial and distal points. There was no significant difference between teeth (incisor, canine) at P=0.05. 5. All-ceramic bridges of three systems appeared to exhibit sufficient initial strength and acceptable marginal fit values to allow clinical application.
Aluminum Oxide
;
Ceramics
;
Crowns
;
Denture, Partial, Fixed
;
Hot Temperature
;
Lithium
;
Tooth
7.Biochemical characterization of embryonic chick calvarial cells.
Jae Hyung YU ; Jung Kun KIM ; Kyung Suk CHA
Korean Journal of Orthodontics 1995;25(6):697-704
Chicken calvarial bone is known to contain various cell types, but their exact composition is unknown. By characterizing the chicken calvarial bone biochemically, it can be used to study biochemical, histochemical actions of bone cells in general. Calvaria of I8-day-old white leg horn embryo was aseptically dissected and bone cell populations were isolated by sequential enzymatic digestion. Histochemical study for osteoclast-like bone cell population was performed with tartrate resistant acid phosphatase(TRAP) stain and for osteoblast-like bone cell population, alkaline phosphatase(ALP) stain was performed. Biochemical study for osteoblast-like bone cell population was performed using alkaline phosphatasetal.P) assay. Following conclusions were obtained from this study. 1. TRAP positive multi and mononuclear cells were mostly observed in group I and II, indicating that osteoclast-like bone cell population is mostly found in these groups. 2. All the cultured groups showed almost equal ALP activities and were positive for ALP stain, indicating that osteoblast-like bone cell population is evenly dispersed in all culture groups. 3. Experimental group treated with I,25(OH)2D3 showed increase in ALP activity in contrast to the control group, confirming previous studies that I,25(OH)2D3 increases ALP activities in vitro bone cultures. 4. Results from von Kassa's stain indicated that in vitro bone formation had occured after 3 weeks of culture with beta glycero phosphate.
Animals
;
Chickens
;
Digestion
;
Embryonic Structures
;
Horns
;
Leg
;
Osteoblasts
;
Osteoclasts
;
Osteogenesis
;
Skull
8.Transpedicular Zielke Instrumentation for the Spondylolisthesis: Result of 73 Cases
Jae Yoon CHUNG ; Yong Ho JUNG ; Hyung Soon KIM
The Journal of the Korean Orthopaedic Association 1990;25(3):933-940
Although several kinds of instrumentation systems are available for the transpedicular screw fixation in the treatment of spondylolisthesis, the clinical results and the difference between them remdins unclear. In order to study the feasibility of Zielke instrumentation system for that purpose, the author analysed the clinical results of 73 patients with mild or moderate degree of spondylolisthesis who were instrumented with the systems and followed up 25 months in average(Min. 12Ms). The results between the groups with different rod thickness in the system, 3.2mm(20 patients), 4mm(33 patients) and 5mm(20 patients), were compared to study the most appropriate thickness. Reduction of the deformity were done by aid of temporarilly applied Harrington system in 3.2mm group. Inlayed reduction potential coming from the jointing mechanism was utilized in the cases with less than 30% of slippage in 4 and 5mm group. Percentage of slippage was changed from 20% preoperatively, to 4% postoperatively and 6% at the end of follow up. The methods of fusion after reduction and fixation were anterior in 25 and posterolateral in 48. Bony fusion was achieved in all but one with pathological spondylolisthesis. Rod failures were observed in two of 3.2mm and one of 4mm group, and loosening of the joint were developed in three of 5mm group. Clinically, 93% of the patient showed excellent and good results at the end of follow up. From the results, we concluded that the instrumentation is a efficient method of treatment with several advantages in the reduction capacity and the stability of fixation. However, this system has several points in its mechanics that needs to be improved.
Congenital Abnormalities
;
Follow-Up Studies
;
Humans
;
Joints
;
Mechanics
;
Methods
;
Spondylolisthesis
9.Remodelling of Patellar Ligament Autograft after ACL Reconstruction: A Histological and Electron Microscopic Study
Eun Kyoo SONG ; Yong Ho JUNG ; Jae Hyung PARK
The Journal of the Korean Orthopaedic Association 1996;31(5):999-1006
A histological and electron microscopic study were conducted in order to observe a morphological changing pattern of patellar ligament autograft after endoscopic ACL reconstruction. Seventeen patients among 117 consecutive series which underwent endoscopic ACL reconstruction from January 1990 to March 1995, were involved in this study according to the various follow-up periods. In second-look arthroscopic finding at 6 months follow-up after ACL reconstruction, reconstructed ACL was covered with synovium and round-shaped, and after the biopsy active bleeding could be seen. In histological study, 6 months follow-up, spindle or ovoid shaped fibroblast with hypercellularity, high crmp patterns of collagen fiber, and parallel arrangement of fibroblast to collagen fiber were noted. The cellularity of fibroblast decreased in according to periods of follow up. At 12 months follow up, spindle or ovoid fibroblast, its cellularity and arrangement pattern and crimp pattern of collagen fiber seemed to be almost similar to those of normal ACL. This similaryity continued up to 2 years and 2 months after reconstruction. In EM study, until 6 months follow-up after reconstruction, the graft showed randomly arranged fibroblasts with hypercellularity, which had abundant cytoplasm with marked irregular cytoplasmic borders and prominent nuclear indentation, Collagen fibrils were immature and showed a unimodel distribution with small diameter. At 12 months follow-up, elongated fibroblasts appeared, but these cells contained folded nuclei and abundant cytoplasm. Collagen fibrils had parallel arrangement and sparse cross striation, and comprised of mainly small fibrils and scattered large fibrils. After 24 months follow-up, the cellularity decreased more. The regular arrangement of collagen fibrils with wavy pattern similar to normal anterior cruciate ligament was noted. Two distinctive population of the small and large diameter of fibrils was also observed (bimodal distribution). At 26 months, the large and small collagen fibrils compresed a characteric bimodal pattern with parallel arrangement, but the majority of fibroblasts had irregular cytoplasmic contour, and abundant cytoplasm with increased organelles, which indicated the active function. These findings suggest that the graft are still immature even at 26 months in postoperative follow up despite considerable maturation of collagen fibril.
Anterior Cruciate Ligament
;
Autografts
;
Biopsy
;
Collagen
;
Cytoplasm
;
Fibroblasts
;
Follow-Up Studies
;
Hemorrhage
;
Humans
;
Organelles
;
Patellar Ligament
;
Synovial Membrane
;
Transplants
10.US-guided percutaneous biopsies with a biopsy gun.
In Oak AHN ; Hyung Jin KIM ; Jae Hyung KIM ; Goo LEE ; Sung Hoon JUNG
Journal of the Korean Radiological Society 1993;29(5):949-953
Core tissue for histologic study is believed by many pathologists to be more diagnostic than material from needle aspiration. Recently introduced automated biopsy gun simplifies core biopsies with increased quantity and quality of samples. Authors performed 38 percutaneous biopsies from 38 patients with 18G automated biopsy guns under US guide. Diagnostic target tissues were obtained in 33 biopsies(87%), inadequate tissues in 4 (11%), and adequate but not of target tissue in 1(3%). There was no major complication requiring treatment, but pain needing analgesics and pain with nausea/vomiting were experienced in 2 and 1 biopsies respectively. Average number of needle passes was 1.5(1-5) We concluded that US-guided gun biopsy was a easy and safe way to obtained tissue samples of good quantity and quality, especially useful in hospitals without constant availability of specialists in cytopathology.
Analgesics
;
Biopsy*
;
Firearms
;
Humans
;
Needles
;
Specialization