1.Fibrochondrodysplasia.
Kyung Nam RYU ; Yong Koo PARK ; Yong Girl RHEE ; Sun Wha LEE ; Jae Hoon LIM
Journal of the Korean Radiological Society 1991;27(2):286-288
No abstract available.
2.Iliac Crest Reconstruction after Harvesting Autogenous Iiac Bone Grafts for Anterior Spinal Fusion
Ki Soo KIM ; Yong Soo CHOI ; Chae In LIM ; Ssng Wook RYU ; Sun Yong JUNG
The Journal of the Korean Orthopaedic Association 1996;31(4):711-719
Potentially, some donor site complications are associated with the harvesting of autogenous tricortical iliac bone grafts for anterior spinal fusion. The purpose of this study was to evaluate the reliability of the anterior iliac crest reconstruction after harvesting autogenous iliac grafts for anterior spinal fusion. We devided into two groups : the study group were the anterior iliac crest reconstruction in 57 patients with minimal twelve months follow up period, the control group were not the anterior iliac crest reconstruction in 21 patients who could not obtain the rib from retroperitoneal approach. The average follow up was obtained at 43.3 months(12 to 72 months) in study group, at 41.6 months(12 to 60 months) in control group. The study group had a tendency to improve the donor site pain after incorporation of the rib graft and the control group tend to remain the donor site pain till late especially in the thinner group and combined disease group. In residual deformity of the donor site, the study group was superior to the control group. Residual deformity of the study group was associated with the complications such as displacement and resorption of the grafts. Cosmetic residual deformity tends to be higher in the thinner group. Radiographically all rib gragts incorporated in situ in 51 patients despite of some cases of migration(Average 11 weeks and 4 days) and clinical results did not affect by biological behavior of rib grafts on the follow up radiogram. The authors attempted anterior iliac crest reconstruction using the implants (Mennen plate in 3 patients, threaded pin in 3 patients) after large harvesting of autogenous tricortical graft in 6 patients who could not obtain the rib from retroperitoneal approach or could not fit the rib too the defect. In those cases the results were satisfactory clinically. These results suggest anterior iliac crest reconstruction can minimize painful deformity after the harvesting of autogenous tricortical iliac grafts for anterior spinal fusion.
Congenital Abnormalities
;
Follow-Up Studies
;
Humans
;
Ribs
;
Spinal Fusion
;
Tissue Donors
;
Transplants
3.EFFECTS OF MULTIMODAL TREATMENT FOR THE MAXILLARY CANCER.
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2001;27(1):54-60
The treatment of maxillary cancer has been commonly performed by the surgery and radiation therapy, alone or in combination. Multimodal treatment has been introduced with improvement of chemotherapy and immunotherapy. Multimodal treatment for the maxillary cancer is composed of surgery, radiation therapy, and regional intra-arterial chemotherapy. The present study was performed to evaluate the effectiveness of the multimodal treatment with Morita's method, with a slight modification, for the maxillary cancer. Twenty-four cases of the maxillary cancer were analyzed. The multimodal treatment increased the 5-year-survival rate up to 66% and reduced the need for maxillectomy. This method made the morphological and funtional preservation possible. This method may be recommended for the treatment of maxillary cancer.
Combined Modality Therapy*
;
Drug Therapy
;
Immunotherapy
5.Detection of Antibodies against Shope Fibroma Virus and Formation of Fibroma in the Korean Domestic Rabbits.
Hyun Ok YANG ; Kun Koo PARK ; Sun Ja RYU ; Young Dae WOO ; Yong Kyu JOO ; Ho Wang LEE
Journal of the Korean Society of Virology 1998;28(4):369-375
In our preliminary study to find antiviral or antitumor agents from Korean natural products, we found that the Shope fibroma virus (SFV) induced fibromas reaching maximum size at 5~6 days with spontaneous disappearance at 15~20 days after SFV intracutaneous inoculation into Korean domestic rabbits. However, the sizes of fibromas of rabbits at day 5 after virus inoculation were significantly different individually. Assuming that the variation of tumor size was due to either susceptibility or the preexisting antibodies against SFV in the Korean domestic rabbits, the rabbits were checked for the antibodies against SFV by IFAT using SFV infected RKl3 cells. The antibody positive rate of normal Korean domestic rabbits was 32.8% and the sizes of the fibromas of the positive rabbits were significantly smaller than those of negative rabbits (p<0.0001). The fibroma sizes were dependent on the antibody titers of rabbits to SFV. The sizes of fibromas after inoculation of SFV into immunized rabbits were about one tenth of those by the first inoculation into normal rabbits. This is the first report on the antibody prevalence against SFV among normal Korean domestic rabbits and it suggest the existence of a wild fibroma virus or related virus in Korea.
Antibodies*
;
Antineoplastic Agents
;
Biological Products
;
Fibroma Virus, Rabbit*
;
Fibroma*
;
Korea
;
Prevalence
;
Rabbits*
;
Tumor Virus Infections*
6.Aortic Dissection Presenting with Secondary Pulmonary Hypertension Caused by Compression of the Pulmonary Artery by Dissecting Hematoma: A Case Report.
Dong Hun KIM ; Sang Wan RYU ; Yong Sun CHOI ; Byoung Hee AHN
Korean Journal of Radiology 2004;5(2):139-142
The rupture of an acute dissection of the ascending aorta into the space surrounding the pulmonary artery is an uncommon occurrence. No previous cases of transient pulmonary hypertension caused by a hematoma surrounding the pulmonary artery have been documented in the literature. Herein, we report a case of acute aortic dissection presenting as secondary pulmonary hypertension.
Aortic Aneurysm/*complications/diagnosis
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Aortic Rupture/*complications/diagnosis
;
Constriction, Pathologic
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Female
;
Hematoma/*complications
;
Human
;
Hypertension, Pulmonary/*etiology
;
Middle Aged
;
Pulmonary Artery/pathology/radiography
;
Tomography, X-Ray Computed
7.Ultrasonography and arthrography in rotator cuff lesions: algorithmic approach.
Eui Jong KIM ; Kyung Nam RYU ; Sun Wha LEE ; Jae Hoon LIM ; Yong Girl RHEE ; Pil Mun YU
Journal of the Korean Radiological Society 1992;28(6):968-972
Twenty-six patients with chief complaint of shoulder pain who underwent both ultrasonographic examination and arthrography of the shoulder were analyzed. Ten out of 12 cases with clinical impression of frozen shoulder, showed normal findings on the ultrasonographic examination of the shoulder. Among these ten cases, nine cases showed abhesive capsulitis and one case showed rotator cuff tear on arthrography. Among six cases with the clinical impression of rotator cuff tear, five cases showed rotator cuff tear and one case showed combined calcific tendinitis and adhesive capsulitis on ultrasonographic examination. In arthrography, four cases of rotator cuff tear, one case of calcific tendinitis and biceps tendinitis and one case of normal findings were diagnosed. For the remaining eight cases in the ultrasonographic examination, normal finding or biceps tendinitis were found and for the remaning of the cases in arthrography adhesive capsulitis were found. With the above results, we recommend that the shoulder ultrasonography as the first line diagnostic modality for a patients with chief complaint of shoulder pain.
Arthrography*
;
Bursitis
;
Humans
;
Rotator Cuff*
;
Shoulder
;
Shoulder Pain
;
Tears
;
Tendinopathy
;
Ultrasonography*
8.Percutaneous Removal of the Retained Biliary Stones: Evaluation of the Results on of Impatient-basis Management.
Yong Chul LEE ; Young Goo KIM ; Kun Sang KIM ; Dae Sik RYU ; Hyung Jin SHIM ; Yoon Sun CHOI
Journal of the Korean Radiological Society 1994;30(2):259-263
PURPOSE: All procedures for the removal of retained intrahepatic stones were performed on inpatient basis. We evaluated the advantage of the procedures performed on inpatient basis compared with outpatient basis in terms of the success rate, causes of failure and the complication. MATERIALS AND METHODS: Percutaneous removal of retained intrahepatic stones was performed in 58 patients through a T-tube tract on inpatient basis from April 1990 to December 4992. Stones were exclusively intrahepatic in 28 patients, whereas 30 patients had combined stones in common bile duct. Preshaped catheters, baskets, and balloon catheters were used to remove the stones and dilate the strictures of the ducts. Extracorporeal shock wave lithotripsy and choledochoscopy with electrohydraulic lithotripsy were used to crush the impacted stones. RESULTS: The stones were completely removed in 34 (58.6%) of 58 patients and most of the stones were removed in 17 patients (29.3%). The overall success rate was 87.9%. The complications (cholangitis in 13% and pancreatitis in 0.8% per session) were found and successfully managed by appropriate care. CONCLUSION: Better success rate could be achieved by more aggressive appraoch on inpatient basis when compared with previous reports on outpatient basis. We suggest that the procedures should be performed on inpatient basis especially in a case with severe strictures or impacted stones.
Catheters
;
Common Bile Duct
;
Constriction, Pathologic
;
Humans
;
Inpatients
;
Lithotripsy
;
Outpatients
;
Pancreatitis
;
Shock
9.Effects of Reactive Oxygen Species on Sperm Function, Lipid Peroxidation and DNA Fragmentation in Bovine Spermatozoa.
Buom Yong RYU ; Yung Chai CHUNG ; Chang Keun KIM ; Hyun A SHIN ; Jung Ho HAN ; Myung Geol PANG ; Sun Kyung OH ; Seok Hyun KIM ; Shin Yong MOON
Korean Journal of Fertility and Sterility 2002;29(2):105-115
OBJECTIVE: To evaluate the effects of the reactive oxygen species (ROS) generated with a xanthine(X) and xanthine oxidase (XO) system on sperm function, the change of sperm characteristics, lipid peroxidation, and DNA fragmentation in bovine spermatozoa. MATERIALS AND METHODS: ROS were produced using a combination of 100 micrometer X and 50 mU/ml XO. The ROS scavengers: superoxide dismutase (SOD)(200mu/ml) and catalase (500mu/ml) were also tested. Spermatozoa were incubated for 2 hours in BWW medium with a combination of X-XO supplemented with or without ROS scavengers at 37degrees C under 5% CO2 incubator. Sperm movement characteristics by CASA (computer-aided sperm analysis), HOST (hypoosmotic swelling test), Ca-ionophore induced acrosome reaction, malondialdehyde formation for the analysis of lipid peroxidation, the percentage of DNA fragmentation using the method of TdT-mediated nick end labelling (TUNEL) by flow cytometry were determined after 2 hours incubation. RESULTS: The action of ROS on bovine spermatozoa resulted in a decreased in capacity for sperm motility, Ca-ionophore induced acrosome reaction and membrane integrity, an increased in malondialdehyde formation and the percentage of sperm with DNA fragmentation. In the effects of antioxidant, catalase completely alleviated the toxic effects induced by the ROS in terms of sperm function and characteristics, however SOD exhibited no capacity to reduce the toxic effects. CONCLUSION: The ROS can induce significant damages to sperm functions and characteristics. The useful ROS scavengers can minimized the defects of sperm function and various damages of spermatozoa.
Acrosome Reaction
;
Catalase
;
DNA Fragmentation*
;
DNA*
;
Flow Cytometry
;
Incubators
;
Lipid Peroxidation*
;
Malondialdehyde
;
Membranes
;
Reactive Oxygen Species*
;
Sperm Motility
;
Spermatozoa*
;
Superoxide Dismutase
;
Xanthine Oxidase
10.Clinical outcome of renal transplantation in children.
Yong Shin KIM ; Ku Yong CHUNG ; Yu Seun KIM ; Ki Sun RYU ; Hong Rae CHO ; Jae Seung LEE ; Pyung Kil KIM ; Kiil PARK
The Journal of the Korean Society for Transplantation 1992;6(1):105-113
No abstract available.
Child*
;
Humans
;
Kidney Transplantation*