1.A case of palatally impacted incisor treated by onlay technique with surgical exposure.
Kwang Hyun KIM ; Mok Kyun CHOI ; Chang BAI
Korean Journal of Orthodontics 1974;4(1):57-61
The patient, a girl of 19 years in good health, had a class I malocclusion. The maxillary left centra1 incisors and both lateral incisors had already erupted. But the space for the right central incisor was partially closed by the mesial drifting of the neighboring teeth. The caused a shift in the midline and a cross-bite relation on the incisors. X-ray examination revealed the presence of the right central incisor in the alveolar bone and odontoma just above the crown of the right central incisor. After enough space for the impacted incisor was created in the dental arch with a open-coil spring the rectangular incision was made. Removing the odontoma uncovered the flat surface of the labial aspect of the incisor. During the tooth had erupted of its own accord, any unnecessary force had been imposed on the tooth. When it was decided that the tooth should be brought out by the mechanical device, the gold cast onlay with hook was used and run a light elastic between this hook and the main arch wire. Finally the tooth was brought down to the arch level. The result was excellent. Fortunately the esthetic problem and any detrimental effects on the psychological make-up could be avoided.
Crowns
;
Dental Arch
;
Female
;
Humans
;
Incisor*
;
Inlays*
;
Malocclusion
;
Odontoma
;
Tooth
2.Very Long Island Pedicled Sole - fillet Flap for Below - Knee Amputation Stump Reconstruction: 2 Cases Report.
Guen Chang HO ; Dong Chang JUN ; Chang Ju LEE ; Soo Jung CHOI ; Chang Kyun LIM
The Journal of the Korean Orthopaedic Association 1997;32(7):1675-1680
The pedicled fillet flap concept has been successfully applied in both the upper and lower extremities for the treatment of difficult wound. In cases of inevitable extremity amputation, the transfer of pedicled flap from the amputed part is possible. In such substance, it is possible to obtain the pedicled fillet flap from the amputed limb to provide stump coverage. We experienced two cases of below-knee amputation due to severe flame burn which the stump was covered with island pedicled sole-fillet flap.
Amputation Stumps*
;
Amputation*
;
Burns
;
Extremities
;
Knee*
;
Lower Extremity
;
Surgical Flaps
;
Wounds and Injuries
3.Reconstruction of ankle using free vascularized flap from amputated hand: A case report.
Soo Joong CHOI ; Chang Kyun LIM ; Ho Guen CHANG ; Jun Dong CHANG ; Chang Ju LEE
The Journal of the Korean Orthopaedic Association 1998;33(2):484-489
It is indispensable to cover the skin defect when bone or tendon is exposed. In case of inevitable amputation of an extremity, it is possible to harvest a free flap from the amputed limb for providing coverage of the other wound. This technique allows immediate wound coverage without the morbidity of an additional donor site. We experienced an electrical burn case with inevitahle wrist disarticulation and successfully treated soft tissue defect of ankle using free vascularized flap.
Amputation
;
Ankle*
;
Burns
;
Disarticulation
;
Extremities
;
Free Tissue Flaps
;
Hand*
;
Humans
;
Skin
;
Tendons
;
Tissue Donors
;
Wounds and Injuries
;
Wrist
4.Intraperitoneal Fluid Collection: CT Characteristics in Dertermining the Causes.
Mi Young KIM ; Ki Chul CHOI ; Chang Hae SUH ; Chong Soo KIM ; Won Kyun CHUNG
Journal of the Korean Radiological Society 1995;32(6):937-942
PURPOSE: Abdominal CT scans in patients with intraperitoneal fluid were retrospectively studied to identify characteristic features useful for differential diagnosis of various causes. MATERIALS AND METHODS: One hundred and seventy patients with intraperitoneal fluid collection were classified as categories of hepatic disease, carcinomatosis, and infectious disease. We analyzed sites of fluid collection, the presence of peritoneal thickening, omental and mesenteric fat infiltration, and lymph node enlargment. RESULTS: Intraperitoneal fluid was present in subhepatic space, subphrenic space, paracolic gutter, mesentery, and fossa of the gallbladder in decreasing order of frequency. Fluid in the gallbladder fossa was the most frequent in hepatic diseases. The fluid collection in subhepatic and subphrenic space was less frequent in infectious diseases. Peritoneal thickening was noted in infectious diseases, and carcinomatosis. Omental fat infiltration and enlarged lymph nodes were the most frequent in carcinomatosis (58% and 44%, respectively), whereas, mesenteric fat infiltration and enlarged lymph nodes were the most common in infectious diseases (61%, and 26%, respectively). CONCLUSION: The location of peritoneal fluid collection showed some lesion specific characteristics, and CT features of fat infiltration and enlarged lymph nodes of peritoneum, omentum, and mesentery were helpful for differential diagnosis between carcinomatosis and infectious diseases.
Ascitic Fluid
;
Carcinoma
;
Communicable Diseases
;
Diagnosis, Differential
;
Gallbladder
;
Humans
;
Lymph Nodes
;
Mesentery
;
Omentum
;
Peritoneum
;
Retrospective Studies
;
Tomography, X-Ray Computed
5.Traumatic Atlanto-Occipital Rotatory Posterior Dislocation Combined with Atlanto-Axial Rotatory Subluxation: A Case Report.
Han CHANG ; Jong Beom PARK ; Seung Key KIM ; Woo Sung CHOI ; Sang Kyun CHUN
Journal of Korean Society of Spine Surgery 1998;5(2):326-332
Traumatic atlanto-occipital dislocation is usually fatal. To date, few cases have been reported in the literature because survival after traumatic atlanto-occipital dislocation is extremely rare. We present the case of a 47-year-old man with traumatic atlanto-occipital rotatory posterior dislocation combined with atlanto-axial rotatory subluxation and treated by occipito-cervical fusion using Bohlman's triple wiring technique.
Dislocations*
;
Humans
;
Middle Aged
6.Crossed Cerebellar Diaschisis : Comparison of SPECT, MRI, Clinical Sign.
Hyung Sun SOHN ; Euy Neyng KIM ; Kwang Hyun SHIN ; Hyung Kyun RHA ; Chang Rack CHOI
Journal of Korean Neurosurgical Society 2000;29(6):794-799
No abstract available.
Magnetic Resonance Imaging*
;
Tomography, Emission-Computed, Single-Photon*
7.The Effects of Mutant p21 Protein on DNA & Protein Synthesis in the Cultured Colon Cancer Cell Lines.
Journal of the Korean Society of Coloproctology 1999;15(4):243-252
PURPOSE: The products of the ras oncogene are proteins of 188 or 189 amino acids and 21,000 molecular weights, termed simply p21 proteins. But the exact roles of c-ras proteins in cell proliferation and differentiation as well as in neoplastic transformation are little understood. The purpose of this study is to investigate the function of the p21 protein to the human colon cancer cell lines according to the exposure time and dosage of p21. METHODS: The authors divided tumor cell lines into 3 groups as follows; group 1 (control, colon cancer cell lines without administration of p21 or polyclonal antibody), group 2 (administration of p21 with labelling of 3H-thymidine and leucine), group 3 (simultaneous administration of p21 protein and polyclonal antibody with labelling of 3H-thymidine and 3H-leucine). After deciding the most effective dose of p21 protein and culture time with target cells in preliminary studies, the morphologic changes of target cells with administration of p21 protein and the p21 expression and interaction with anti-p21 polyclonal antibody were examined by phase contrast microscopy each other. RESULTS: The results were obtained as follows: 1. The most effective dose of the p21 with the colon cancer cell in increase uptake of 3H-thymidine and 3H-leucine were 50 ng but there were some differences in culture time of the 3H-leucine; 96 hours in SBA-1, 72 hours in HT-29 and 120 hours in SW-1116. 2. The increase uptakes of the 3H-thymidine by the different dosage of p21, 50 ng vs 200 ng were 131% (50 ng), 160% (200 ng) in SBA-1, 203% (50 ng), 123% (200 ng) in HT-29, and 127% (50 ng), 189% (200 ng) in SW-1116; and increase uptakes of 3H-leucine were 130% (50 ng), 159% (200 ng) in SBA-1, 113% (50 ng), 165% (200 ng), and 164% (50 ng), 169% (200 ng) in SW-1116. 3. There were some cellular proliferation and morphological changes of the colon cancer cells such as ruffling of the cell membrane, vesicle formation or rounding of the cell after administration of the mutant p21, but such changes were not observed after simultaneous administration of the mutant p21 and anti-p21 polyclonal antibody. CONCLUSIONS: The role of p21 protein has not been to make manifest wholly. In our study, the p21 protein induce the cell proliferation and morphological changes.
Amino Acids
;
Cell Line*
;
Cell Line, Tumor
;
Cell Membrane
;
Cell Proliferation
;
Colon*
;
Colonic Neoplasms*
;
DNA*
;
Genes, ras
;
Humans
;
Microscopy, Phase-Contrast
;
Molecular Weight
;
Proto-Oncogene Proteins p21(ras)
8.Clinical Evaluation of Intravenous Regional Aneetheeia using Bupivacaine .
Kwang Kyun CHOI ; Hae Kyung KIM ; Chang Kun AHN
Korean Journal of Anesthesiology 1987;20(1):34-38
We prospectively studied the clinical effect of intravenous bupivacaine for regional anes-thesia in the lower & upper extremities in sixty consecutive patient from September, 1985 to truly 1986. 0.2% bupivacaine was used and dosage was varied between 1.0mg/kg and 2.5mg/kg. according to the 7ype of surgery, site, body weight and the size of the limb. The amount of bupivaeaine required was rather depend upon the size of the limb thats the patient's body weight. The effect of the anesthesia for a variety of extremity procedures was rated as exoellent, good or fair in 98.3% of the patient.
Anesthesia
;
Body Weight
;
Bupivacaine*
;
Extremities
;
Humans
;
Prospective Studies
;
Upper Extremity
9.Influences of Plastic Surgery Web-Site on the Patients Who Visits Local Clinics.
Chang Kyun KANG ; Jun Buhm KIM ; Jai Koo CHOI ; Sun Heum KIM
Journal of the Korean Society of Aesthetic Plastic Surgery 2001;7(2):162-167
No abstract available.
Humans
;
Surgery, Plastic*
10.Absent perfusion and nonvisualization by renal scintigraphy in a case of transplant kidney.
Sang Kyun BAE ; Hyung In YANG ; Chang Woon CHOI ; Dong Soo LEE ; June Key CHUNG ; Myung Chul LEE ; Chang Soon KOH
Korean Journal of Nuclear Medicine 1992;26(2):400-410
No abstract available.
Kidney*
;
Perfusion*
;
Radionuclide Imaging*