There are many kinds of instrumentation systems for posterior operation in the treatment of scoliosis. Cotrel-Dubousset (C-D) system is most widly used for its excellent correction potential and stability. However there were some problems in C-D hook system such as hook dislodgement and correction loss. So, in order to reduce these problems we use transpedicular screw system and compare the results between two systems. We studied 44 cases of scoliosis ( hook 19 cases, screw 25 cases) who were operated with C-D instrumentation from February 1988 to August 1995. The average follow-up period was 54 months in hook group and 23 months in screw group. 1. Operation time was 241 minutes in hook group and 223 minutes in screw group. Average amount of transfusion was 5.0 pints in hook group and 4.6 pints in screw group. 2. Involved segments of main curvature were 7.0 in hook group and 6.6 in screw group. 3. Scoliotic curve was changed from 49degrees to 13degrees (73%) in hook group and from 47degrees to 12degrees (74%) in screw group. Loss of correction during follow up period was 7degrees in hook group and 3 in screw group. 4. Thoracic kyphosis was changed from 24degrees to 26degrees in hook group and from 27degrees to 30degrees in screw group. Lumbar lordosis was changed from 26degrees to 29degrees in hook group and from 26degrees to 31degrees in screw group. 5. Correction rate of rotation of apex vertebrae by Pedriolle method was 43% (from 20degrees to 12degrees) in hook group and 50% (from 22degrees to 11degrees) in screw group. 6. Complications were two cases of hook dislodgement, one delayed deep infection and four cases of progression of curvature in hook group and one case of malinsertion of screw and two cases of progression of curvature in screw group. In conclusion, these results suggested that screw system is more effective than hook system on rotational correction of apex vertebra and prevention of loss of correction.
Animals ; Follow-Up Studies ; Kyphosis ; Lordosis ; Scoliosis* ; Spine

No abstract available.
Maxillary Sinus* ; Maxillary Sinusitis*

We examined the anatomical position of the mental foramina in mandibles foramen normal adult Koreans. 1. The percentages obtained from the study of the relationships between the mental foramen and the lower teeth showed that the most common location was type lv in which the mental foramen lay at the apex of the second promolar. The foramen between thr apices of ice two premolars (type lll) and the foramen between the second premolar and the first molar (type v) occured often and less often rspectively and find no foramen mesial to the first premolar or at the apex of the first premolar and posterior of the first molar (type l, ll, vl). 2. The study of relationship of the mental foramen to the bo of the mandible revealed that mental foramen was situated closer to the lowed border of the mandibular body. The distance ratio between the mental foramen and the alveolar crest to that between the mental foramen and the lower border was approximately 1.2 : 1. The height of the mandibular body was 31.09±2.80mm on the left side and 30.97±2.48mm on the right. 3. The distance from the mandibular symphysis to the anterior border of the mental foramen measured 29.52±2.01mm on the left, 30.82±2.04mm on the right side, and from the mandibular symphysis to the posterior border of the mandibular ramus was 104.20±4.74mm on the left, 105.44±4.49mm on the right side. It indicates that the mental foramen lies approximately at one-fourth of the distance from the mandibular symphysis to 2017-04-19 the posterior border of the ramus. 4. The distance from the superior border of the mental foramen to the bottom of the lower second premolar socket was found to be positive. It was 5.46±3.09mm on the left, 5.73±3.03mm on the right side. This indicates that the bottom of the lower second premolar socket is slightly higher than the superior border of the mental foramen.
Adult* ; Bicuspid ; Humans ; Ice ; Mandible* ; Molar ; Tooth

This study was performed in order to recognize the identifications of the glycoproteins containing oligosaccharides in human gingiva. After made paraffin sections of human gingiva at 4µm, the sections were incubated with 7 lectins (UEA-I, BS-I, SBA, DBA, WGA, PNA, PNA after neuraminidase treated, Con-A). In order to increase specificity of reactions, the sections were applicated with ABC system. And then the sections were incubated with DAB and were counterstained with hematoxylin. Using the same sections, the sections were done H-E and PAS stains. In WGA, DBA and Con-A, plasma membranes of the layers of all epithelium and connective tissue were stained. In BS-I ; In the epithelium of marginal gingiva, plasma membranes of upper layer of the spinous cell layer and granular cell layer were stained. And in epithelium of sulcular gingiva, plasma membranes of the all spinous cell layer and granular cell layer were stained. In SBA ; Plasma membranes of the granular cell layer were stained. In PNA ; In the epithelium of marginal gingiva, plasma membranes of the basal cell layer and lower layer of spinous cell layer were stained. But lectin reactions were not occurred in thc sulcular gingiva. In PNA treated neuraminidase, plasma membranes of the all epithelial layer except basal cell layer membranes especially cytoplasms of upper layer at the sulcular gingiva and connective tissue were reacted. 1. By the above results, authors could know the identification of oligosaccharides existing g1ycoproteins in the human gingiva. 1) All epithelial layer ; α-D-N-Acetyl-Galactosamine, Sialic acid, D-Glucosamine, α-D-Mannose 2) Basal cell layer ; Galactose-β-(1-3)-N-Acetyl-Galactosamine 3) Spinous cell layer ; α-D-Galactose, Galactose-β-(1-3)-N-Acetyl-Galactosamine 4) Granular cell layer ; α-D-Galactose 5) Connective tissue ; α-D-N-Acetyl-Galactosamine, Siallic acid, β-(1-4)-D-Acetyl-Glucosamine, α-D-Glucosamine, α-D-Mannose 2. The Galactose-β-(1-3)-N-Acetyl-Galactosamine was not existed in the basal cell layer and spinous cell layer in the sulcular gingiva.
Cell Membrane ; Classification* ; Coloring Agents ; Connective Tissue ; Cytoplasm ; Dronabinol ; Epithelium ; Gingiva* ; Glycoconjugates ; Glycoproteins ; Hematoxylin ; Humans* ; Lectins ; Membranes ; N-Acetylneuraminic Acid ; Neuraminidase ; Oligosaccharides ; Paraffin ; Periodic Acid-Schiff Reaction* ; Sensitivity and Specificity

Hemifacial microsomia is a common congenital craniofacial deformity involving bone and soft-tissue. Mandibular hypoplasia is the most obvious skeletal manifestation of hemifacial microsomia. In the past, complete realignment of the skeleton was preferred to soft-tissue correction, which was clearly second choice. However, in this study, simultaneous correction of bone and soft tissue deformities were equally important in treatment of hemifacial microsomia. One-stage and simultaneous bone and soft tissue reconstruction is possible and staged operations of the skeleton and soft tissue are no longer necessary, except in special cases. Even in children and adolescents, good results and normal growth potential can be achieved with simultaneous correction of bone and soft tissue.
Adolescent ; Child ; Congenital Abnormalities* ; Goldenhar Syndrome ; Humans ; Skeleton

No abstract available.
Animals ; Cardioplegic Solutions* ; Oxygen* ; Rats*

No abstract available.
Blepharoptosis* ; Orbit*

OBJECTIVE: The purpose of this article is to report mixed germ cell tumor, which revealed changes compatible with early transformation of dysgerminoma to endodermal sinus tumor(EST) through histogenetic considerations and immunohistochemical stains. METHODS: Ovarian germ cell tumors were reviewed from files of Dept. Ob/Gyn. Seoul Paik Hospital fiom 1992.1 to 1996.12. Total of 5 cases include 4 pure dysgerminoma and 1 mixed germ cell tumars. All tissues were fixed in 10% neutral buffered formalin and embedded in paraffin and reviewed by two pathologists with immunohistochemical staining for cytokeratin, vimentin, AFP, PCNA, p53 & bc1-2. RESULTS: Grossly, the areas of transformation were located at the middle of the mixed tumor. The outer layer of the tumor mass was filled with typical pure dysgerminoma. They were characterised as the presence of microcysts and small glandular structures in hematoxylin-eosin(H-E) stains with positive stain for vimentin, except the tissue of the EST. The cells in the intermediate layer were characterised as the mixed form of dysgerminomatous and EST structures in H-E stains. AFP in the dysgerminomatous cells in intermediate layer and EST were stained, but not in outer layer. CONCLUSION: Dysgerminoma may possess the ability to transform to EST. There might be intermediate stage between dysgerminoma and EST, and Immunohistochemical staining for AFP, cytokeratin, vimentin, PCNA also can be used for prognosis of germ cell tumor.
Coloring Agents ; Dysgerminoma* ; Endoderm ; Endodermal Sinus Tumor* ; Formaldehyde ; Germ Cells ; Keratins ; Neoplasms, Germ Cell and Embryonal ; Paraffin ; Prognosis ; Proliferating Cell Nuclear Antigen ; Seoul ; Vimentin ; Yolk Sac*

No abstract available.
Animals ; Cardioplegic Solutions* ; Oxygen* ; Rats*

No abstract available.
Transplants*