1.The Comparison between Hook and Screw Systems of Cotrel - Dubousset Instrumentation in Scoliosis.
Jae Yoon CHUNG ; Jung Pill HER ; Bong Suk BAE
The Journal of the Korean Orthopaedic Association 1997;32(3):490-496
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
2.Inhibition of Contact Hypersensitivity by PUVA Treatment.
Sung Ho BAE ; Yun Shin CHUNG ; Seok Don PARK ; Hyang Suk YOON ; Hun Taeg CHUNG
Annals of Dermatology 1990;2(1):1-8
Normal C3WHeN strain mice exposed to topical 8inethoxypsomlen plus long wave ultraviolet (PUVA) showed a reduction in contact hypersensitivity, (CH) which was localized to the skin in the area of PUVA treatment (local suppression), whereas systemic PUVA treatment caused diffuse suppression of CH reaction, regardless of the application site of 2,4-dinitro-1-fluorobenzene (DNFB). There seem to be two different mechanisms responsible for CH reduction by PUVA. Local suppression by topical PUVA treatment was thought to be a result of blocking the afferent phase of immune response, it was associated with a lack of CH effector cells in the peripheral lymph nodes and could not be reversed by indomethacin treatment. Diffuse suppression induced by systemic PUVA treatment seemed to be associated with blocking of egress of effector cells from the regional lymph nodes, this depressed CH response was prevented when indomethacin was administered before PUVA treatment.
Animals
;
Dermatitis, Contact*
;
Indomethacin
;
Lymph Nodes
;
Mice
;
Skin
3.In vitro Induction of Cellular Differentiation of Human Fetal Liver Cell Lines with Sodium Butyrate.
Jung Hwan YOON ; June Sung LEE ; Hyo Suk LEE ; Chung Yong KIM
The Korean Journal of Hepatology 1997;3(3):193-201
BACKGROUND/AIMS: Imrnortalized human fetal liver cell lines established by transfecting simian virus 40 T gene wae found to lose differentiated liver cell functions in successive long-term culture. Butyrate, known as a differentiation-promoting agent for a variety of cancer cell lines, is produced in the colon by bacterial flora and selectively transported into the liver though the portal blood flow. Therefe, butyrate might play a role in the maintenance of differentiation in hepatocytes in vivo. In thepresent study, the effects of butyrate on cell growth and differentiation in human fetal liver cell lines was investigated. METHODS: Human fetal liver cell lines imrnortalized by SV 40 T antigen were treated with sodium butyrate (1mM), and cell growth rate after butyrate treatment were nmsured by the number of viable cells, determined by trypan blue dye exclusice method. The effects of sodium butyrate on the hepatocyte-specific differentiatian were assessed by albumin and alfa-fetoprotein (AFP) mRNA expression, analyzed using reverse-transcription polymerase chain reaction, and were also by the increment of albumin secretion into culture media, determined by a competitive inhibition ELISA. RESULTS: Treatment with sodium butyrate resulted in a cessation of cellular proliferation and alterations in cellular morphology (increased cell size and polygonal change in shape). The level of albumin mRNA after sodium butyrate treatment was elevated by about two times as compared to that of control. In contrast, AFP mRNA expression were dennstrated neither before nor after sodium butyrate treatment. The average amount of albumin released in the medium was less than 6pghnl/10'cells/2days in the absence of sodium butyrate, and increased to 17 p g/ml/10'cells/2days at day 2, 21ugfml 10'cells/2days at day 4 in the presence of sodium butyrate, and these levels thereafter were over 10 times higher than that in the absence of sodium butyrate until day 10. CONCLUSION: These mults indicate that treatment of immcetalized fetal liver cell lines with butyrate leads to inhibition of cellular proliferation and promotion of adult hepatocyte-specific differentiation.
Adult
;
Antigens, Viral, Tumor
;
Butyrates
;
Butyric Acid*
;
Cell Line*
;
Cell Proliferation
;
Cell Size
;
Colon
;
Culture Media
;
Enzyme-Linked Immunosorbent Assay
;
Hepatocytes
;
Humans*
;
Liver*
;
Polymerase Chain Reaction
;
RNA, Messenger
;
Simian virus 40
;
Sodium*
;
Trypan Blue
4.The Benegits of Segnental Latissimus Dorsi Muscle Free Flap.
Yun Gyu PARK ; Hun Bum LEE ; Suk Won KIM ; Yoon Kyu CHUNG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(5):923-926
Since the first report by Tansini in 1896, the latissimus dorsi muscle free flap has been widely used for various types of soft tissue defect due to reliable anatomy with a sufficient diameter of neurovascular pedicle and a sizable muscle. However, for relatively small soft tissue defect, latissimus dorsi free flap offers several distinct disadvantages of donor site including loss of the posterior axillary fold and flattening of the posterolateral chest wall, weakness of upper arm strength in extension, adduction and internal rotation. We treated three patients having various types of soft tissue defect using segmental latissimus dorsi muscular free flap depending on its descending branch of thoracodorsal neurovascular pedicles. There were no serious complications during 18 months of mean follow-up. We concluded that this method has some advantages such as no weakness of strength of the upper arm including walking on crutches, preserving the posterior axillary fold, preventing winging of the scapula and increased chance of using a flow-through technique. Here we present our cases of reconstruction of soft tissue defect using segmental latissimus dorsi free flap with a review of the literature.
Arm
;
Crutches
;
Follow-Up Studies
;
Free Tissue Flaps*
;
Humans
;
Scapula
;
Superficial Back Muscles*
;
Thoracic Wall
;
Tissue Donors
;
Walking
5.An analysis of 26 consecutive cases of free flaps in head and neck.
Kyung Bo SIM ; Sang Hoon HAN ; Kyung Suk KOH ; Kun Chul YOON ; Bok Sung CHUNG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1993;20(3):612-623
No abstract available.
Free Tissue Flaps*
;
Head*
;
Neck*
6.Comparison of Midazolam and Thiopental as an Induction Agent .
Yoon Jae CHUNG ; Myung Suk LEE ; Hye Kyung KIM
Korean Journal of Anesthesiology 1991;24(4):826-832
Midazolam is a new water soluble benzodiazepine which used to induce anesthesia. The drug possesses properties similar to those of benzodiazepines(sedative, anxiolytic, anticonvulsant, muscle-relaxant) and has low toxicity compared with thiopental which is world-wide used for induction agent. Midazolam is characterized by slow onset of action, more gradual effects on circulation, low frequency of thrombophlebitis and greater degree of antegrade amnesia. Because of these characteristics midazolam is used as an alternative induction agent. As an induction agent, in order to evaluate the properties of midazolam compared with thiopental, 60 patients were divided into 2 groups. Group I, thiopental 5 mg/kg induction group; Group II, midazolam 0.15mg/kg induction group. Systolic and diastolic blood pressure, pulse rate, induction time and recovery time were measured in each group. Frequency of the throm bophlebitis, retrograde and antegrade amnesia were evaluated. In group I, systolic blood pressure decreased significantly and pulse rate increased signifi-cantly. In group II, diastolic pressure decreased significantly and pulse rate increased signifi-cantly. Induction time and recovery time were delayed significantly in group II than group I. In group II, frequency of the thrombophlebitis was lower and antegrade amnesia was greater than group I. Retrograde amnesia did not occured in both groups. On the basis of these data, midazolam used for induction maintains hemodynamic stability, induces anesthesia smoothly, produces low frequency of the thrombophlebitis and high frequency of antegrade amnesia. Therefore it is concluded that midazolam is safe and effective induction agent and may offers an advantage over thiopental in situations where hemodynamic stability is crucial.
Amnesia
;
Amnesia, Retrograde
;
Anesthesia
;
Benzodiazepines
;
Blood Pressure
;
Heart Rate
;
Hemodynamics
;
Humans
;
Hypnotics and Sedatives
;
Midazolam*
;
Thiopental*
;
Thrombophlebitis
7.Clinical Trials of Interferon-gamma in Treating Warts.
Suk Woo LEE ; Dong HOUH ; Hyung Ok KIM ; Chung Won KIM ; Tae Yoon KIM
Annals of Dermatology 1990;2(2):77-82
This study was performed to investigate the clinical efficacy of intralesional recombinant interferon-γ (IFN-γ) in the treatments of warts, using a placebo comparison. Warts of each groups were injected with INF-γ containing 5×10⁶ IU/ml (high dose), 1×10⁶ IU/ml (low dose), or distilled water for injection as placebo, respectively, twice weekly for three weeks. The final therapeutic efficacy was determined on the fourth week after the beginning of therapy. Among the 74 patients with periungual warts, plantar warts, or warts of other sites, complete clearing of the treated warts at week four occurred in 56% of the 36 patients receiving the high dose IFN-γ compared to 30% of the 53 receiving the low dose IFN-γ and 17% of the 36 receiving the placebo. Marked improvement showing 75% or greater regression of wart lesions was noted as 89% of patients receiving the high dose INE compared with 55% receiving the low dose IFN and 50% receiving the placebo. The group of patients with warts of other sites showed the best response. The group receiving the high dose IFN experienced some adverse effects more frequently or more severely than the group receiving low dose IFN. However, the effects were relatively tolerable to the patients. Therefore, intralesional injection of the high dose IFN-γ may be more useful in treating warts than a low dose IFN-γ.
Humans
;
Injections, Intralesional
;
Interferon-gamma*
;
Treatment Outcome
;
Warts*
;
Water
8.Fetal growth in weight as estimated from normal single livebirths between 27 to 43 weeks' gestation.
Suk Young KIM ; Tai Ho CHUNG ; Kuk LEE ; Dong Jae CHO ; Yoon Ho LEE
Korean Journal of Obstetrics and Gynecology 1993;36(7):1127-1132
No abstract available.
Fetal Development*
;
Pregnancy*
9.Histopathologic study of soft palate muscles in cleft palate (II)>.
Hyun Chul KIM ; Suk Wha KIM ; Yoon Ho LEE ; Chin Whan KIM ; Doo Hyun CHUNG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1992;19(4):538-548
No abstract available.
Cleft Palate*
;
Muscles*
;
Palate, Soft*
10.The Association Between Genetic Polymorphisms of the Ethanol-metabolizing Enzymes and Susceptibility to Alcoholic Liver Cirrhosis.
Sook Hyang JUNG ; Han Chu LEE ; Jung Hwan YOON ; Hyo Suk LEE ; Chung Yong KIM
The Korean Journal of Hepatology 1998;4(1):1-11
BACKGROUND/AIMS: There is considerable variance in individual susceptibility to hepato-toxic effects of ethanol as evidenced by the finding that only about 10-20% of alcoholics develop alcoholic liver cirrhosis. The aims of this study were, 1) to get the data on the genetic polymorphisms of three major ethanol-metabolizing enzymes (ADH, CYP2E1, ALDH) in normal Korean adults, and to search for the specific genotypes influencing alcohol drinking behavior by the comparison of allele frequencies between healthy control group and heavy drinker group with or without liver disease, 2) to investigate the influence of the genetic polymorphisms of these enzymes on the susceptibility to alcoholic liver disease by the comparison of allele frequencies between heavy drinker group without liver disease and alcoholic liver cirrhosis group. METHODS: Healthy control group included 53 healthy males in military service without evidence of liver disease or alcoholism. Heavy drinker group without liver cirrhosis included 29 males who had been drinking 80g or more of alcohol daily for more than ten years but did not have any clinical evidence of liver disease. Alcoholic cirrhosis group included 43 male patients who had drunk 80g or more of alcohol daily for more than ten years and had clinical evidences of overt cirrhosis. Subjects with hepatitis B surface antigen or anti-hepatitis C antibody were excluded. Genotypes of the three enzymes were determined by PCR (polymerase chain reaction) and restriction fragment length polymorphism (RFLP) with genomic DNAs extracted from peripheral leukocytes. RESULTS: 1) In healthy Korean males, allele frequency of ADH22, ADH31, CYP2E1 c2 and ALDH22 was 81%, 94%, 30% and 14%, respectively. 2) The absence of ALDH22 or CYP2E1 c2 allele were significant risk factors for being a heavy drinker (odds ratio,' 0.09, 0.42, respectively). 3) Although it was not associated with the polymorphism of each ethanol-metabolizing enzymes, the susceptibility to alcoholic liver cirrhosis was significantly associated with combined genotypes of ADH2(22) & ADH3(1+1)& CYP2E1 B or C. COMCLUSION: Genetic polymorphisms of ethanol-metabolizing enzyrnes are significantly associated with the suseptability to alcoholic liver disease as well as alcohol drinking behavior.
Adult
;
Alcohol Drinking
;
Alcoholics*
;
Alcoholism
;
Alleles
;
Cytochrome P-450 CYP2E1
;
DNA
;
Drinking
;
Ethanol
;
Fibrosis
;
Gene Frequency
;
Genotype
;
Hepatitis B Surface Antigens
;
Humans
;
Leukocytes
;
Liver Cirrhosis
;
Liver Cirrhosis, Alcoholic*
;
Liver Diseases
;
Liver Diseases, Alcoholic
;
Male
;
Military Personnel
;
Polymerase Chain Reaction
;
Polymorphism, Genetic*
;
Polymorphism, Restriction Fragment Length
;
Risk Factors