1.Detection of varicella-zoster virus DNA in clinical specimens by polymerase chain reaction(PCR).
Min Ho SUH ; Won Ki BAEK ; Kyu Suk LEE
Journal of the Korean Society for Microbiology 1991;26(5):479-486
No abstract available.
DNA*
;
Herpesvirus 3, Human*
2.Congenital Coxa Vara, Acquired Coxa Vara and Valga
Duk Yong LEE ; Goo Hyun BAEK ; Kyu Chun HWANG
The Journal of the Korean Orthopaedic Association 1984;19(6):1133-1140
In 5 cases of congenital coxa vara, 7 cases of acquired coxa vara and 4 hips in 3 cases of acquired coxa valga, we performed subtrochanteric osteotomies at Department of Orthopedic Surgery, SeoulNational University Hospital, from December 1980 to February 1984. At a relatively short interim follow-up, following observations were made on the correction of the femoral neck-shaft angle deformities. l. In the congenital coxa vara group, at an average follow-up of 1 year and 3 months, 97.9% of the correction obtained by osteotomy was maintained, based on the roentgenographic measurements of femoral neck-shaft angle. In the acquired coxa vara group, at an average follow-up of 1 year and 2 months, 93.3 % of the correction obtained by osteotomy was maintained. In the acquired coxa valga group, at an average follow-up of 1 year and 5 months, 92.9% of the correction obtained by osteotomy was maintained. 2. At final follow-up, leg length gain averaged 1.26cm in the congenital coxa vara group and 2.23cm in the acquired coxa vara group. An average 0.70cm decrease in leg length was noted in the acquired coxa valga group. 3. Trendelenburg sign, which was positive in all the cases of the congenital and acquired coxa vara group, reverted to negative in all. 4. Slight overcorrection in cases of the acquired coxa vara and undercorrection in cases of the acquired coxa valga, is recommended for later loss of surgically corrected femoral neck-shaft angle. In the congenital coxa vara, it appeared that loss of correction was relatively minor.
Congenital Abnormalities
;
Coxa Valga
;
Coxa Vara
;
Follow-Up Studies
;
Hip
;
Leg
;
Orthopedics
;
Osteotomy
3.Our Experience with Steel's Triple Innominate Osteotomy On Paralytic Hips and Septic Hip Residua
Duk Yong LEE ; Goo Hyun BAEK ; Kyu Yub HWANG
The Journal of the Korean Orthopaedic Association 1985;20(6):1015-1025
In 1973, Steel described triple innominate osteotomy in which the ischium, the superior pubic ramus and ilium superior to the acetabulum are divided and the acetabulum is repositioned anterolaterally and is stabilized by a bone graft and metal pins. Its goal is to establish a stable hip for dislocation or subluxation of the hips in older children and adults on whom it is impossible to correct effectively the instability by any one of the more conventional osteotomies, i.e. Salter's, Pemberton's or Chiari's, or by the capsular arthroplasty of Colonna. During the eleven years and eight months, from December 1973 to August 1985, at the Department of Orthopedic Surgery, Seoul National University Hospital, we performed Steel's triple innominate osteotomy on 41 cases, of which 37 were residual poliomyelitis and 4 septic hip residua. 4 cases of residual poliomyelitis were lost during follow up. The remaining 37 cases were reviewed for the efficacy and limitations of triple innominate osteotomy. We observed following conclusions: 1. Aside from congenital dislocation and dysplasia of the hip, paralytic conditions, such as residual poliomyelitis, are good indications of Steel's triple innominate osteotomy in older children, adolescents and young adults. Acetabular acclivity is adequately reduced and stability is improved. 2. Septic hip residua, including healed tuberculosis, is another indication of triple innominate osteotomy, particularly when total hip arthroplasty is contemplated. 3. When abductors are partially paralyzed, triple innominate osteotomy alone results in appreciable increase in abductor power, by providing a better muscle tension. 4. Substantial gain in leg length is an added advantage of triple innominate osteotomy. An average of 1.74 cm was gained at osteotomy site in our series. In adults, when limb shortening is relatively m i nor, triple innominate osteotomy alone can be a more convenient alternative to conventional, more formidable method of leg length equalization, such as femoral lengthening. This is particularly true when there is some instability or when abductors are weak. 5. Following improvement in mechanical stability by triple innominate osteotomy, weak abductors and extensors may be augmented by appropriate muscle transfer, resulting in more stable hip functionally. 6. In a hypermobile paralytic hip, iliopsoas tenotomy is neither necessary nor desirable at the time of osteotomy. When the hip is dislocated, or when the hip has marked flexion deformity, iliopsoas tenotomy fascillitates adequate correction, but this greatly increases the risk of neurological complication.
Acetabulum
;
Adolescent
;
Adult
;
Arthroplasty
;
Arthroplasty, Replacement, Hip
;
Child
;
Congenital Abnormalities
;
Dislocations
;
Extremities
;
Follow-Up Studies
;
Hip
;
Humans
;
Ilium
;
Ischium
;
Leg
;
Methods
;
Muscle Tonus
;
Orthopedics
;
Osteotomy
;
Poliomyelitis
;
Seoul
;
Steel
;
Tenotomy
;
Transplants
;
Tuberculosis
;
Young Adult
4.Histologic Changes of Normal Human Skin in Organ Culture.
Jeong Hyon BAEK ; Yeul Hoon SUNG ; Jeung Hoon LEE ; Jang Kyu PARK ; Jeong Kyu PARK
Korean Journal of Dermatology 1990;28(2):130-135
Since adult human skin can be grown in chernically defined medium without serum, the skin organ culture has gained a great interest as a method for studies concerning skin biology, pharmacology and toxicology. however, serum supplementation has extensively been used to improve the viahility of tissue culture. This study was undertaken to evaluate the effect of serum on the histologic changes ohserved during the organ culture of the normal human skin. The general architecture of the skin was well maintained for 6 days with or without seru. After then, fetal calf serum or autologous human serum was found to enhance the viability of the epidermis. A confluent layer of necrotic spinous ceils was ovserved earlier and more widespread without serum. The addition of serum had an impressive effect on epibolization. In the absenee of serum, the formation of the epibolus was not only minimal, but also, susceptible to degeneration, and no epibolus remained at 10 days rif incubation. No difference can be found between fetal calf serm and autologous human serum in the formation of the epibolus. There was no favorable effect of serum on the formation of new stratum corneum. The thickness of new straturn corneum increased in parallel with the number of parakeratatic cells, increasing most rapidly between 6 and 8 days of incubation. Parakeratosis was more prominent in the presence of serurn.
Adult
;
Biology
;
Epidermis
;
Humans*
;
Organ Culture Techniques*
;
Parakeratosis
;
Pharmacology
;
Selective Estrogen Receptor Modulators
;
Skin*
;
Toxicology
5.A comparison of the efficiency of the three egg count techniques.
Ok Ran LEE ; Won Koo LEE ; Baek Hyun YUN ; Kyu Myon LEE
The Korean Journal of Parasitology 1972;10(2):90-94
Usually egg count technique has been employed to know the intensity of infestation of human intestinal helminths and to elucidate the effects of anthelmintics. Comparing the three egg count methods - Stoll's egg dilution method, Beaver's direct smear method and FHK counting board method - the authors reached the following results: As the result of application of the three methods to 75 Ascaris egg positives and 95 Trichocephalus egg positives, in the case of Ascaris eggs, the egg detection rate was 99 per cent by Stoll's method, 97 per cent by Beaver's method and was lowest by FHK method at 79 percent. Meanwhile, in Trichocephalus eggs, Stoll's method revealed 92 percent, Beaver's method 95 percent, and FHK method 95 percent, there being no noticeable differences. With regard to EPG, in counting Ascaris eggs, Stoll's method showed a value closest to the actual number of eggs, and the value revealed by FHK method was smaller than the actual number. As the result of comparing the coefficiencies of variation of the three egg counting methods, both in Ascaris eggs and Trichocephalus eggs, the FHK method showed the smallest, followed by Stoll's method and Beaver's method.
parasitology-helminth-nematoda
;
Ascaris lumbricoides
;
Trichuris trichiura
;
diagnosis
6.Experimental Study on the Effects of Suture and Limited Active Motion on Achilles Tendon Healing
Goo Hyun BAEK ; Han Koo LEE ; Sang Hoon LEE ; Bong Goo YEO ; Kyu Hyoung CHO
The Journal of the Korean Orthopaedic Association 1994;29(1):36-43
The injured tendon is thought to be healed by, extrinsic healing from tendon sheath and adjacent connective tissue, and intrinsic healing from epitenon and endotenon. About the factors influencing the healing of injured tendon, many authors reported the effects of mobilization, electricity, ultrasound and various druge. Especially, active or passive mobilization had been known to promote the healing process and to reduce adhesion. To investigate the influences of active limited mobilization, intrinsic and extrinsic healing process, right Achilles tendons of 30 New Zealand white rabbits were grouped according to the types of treatments (Group I; tenotomy of Achilles tendon only, Group II; Tenotomy and long leg cast, Group III; surgical repair after tenotomy and long leg cast). The tendon sheath was repaired in all the groups, and the left Achilles tendons were used as control. At six weeks after operation, the tendons were removed and analysed biomechanically using Instron 1000, and histologically. The following results were obtained: 1. There were significant decreased of break strength, in order of Group III, Group I and Group II(p < 0.05). But, no difference was found between control group and Group III. 2. Extension length to the rupture, was decreased significantly in the experimental groups than control group. But there was no difference among the experimental groups. 3. Histologically, dense proliferation of fibroblasts and hypertrophy of tendon was observed in Group I; and matured fibricytic tendon tissues in Group II and III. In Group II, the amount of matured tendon tissues and degree of maturity were less than in Group III. In summary, suture and active limited motion were considered as promoting factors on the tendon healing.
Achilles Tendon
;
Connective Tissue
;
Electricity
;
Fibroblasts
;
Hypertrophy
;
Leg
;
Rabbits
;
Rupture
;
Sutures
;
Tendons
;
Tenotomy
;
Ultrasonography
8.A Case of Vascular Leak Syndrome During Induction Chemotherapy of Acute Lymphoblastic Leukemia (T Cell Type) .
Kye Wool KANG ; Hwang Min KIM ; Won Kyu CHOI ; Baek Keun LIM ; Chang Hun LEE
Journal of the Korean Pediatric Society 2001;44(9):1041-1046
Vascular leak syndrome(VLS) is characterized by endothelial damage, which causes extravasation of plasma proteins and fluid from capillaries into the extravascular space. It has been suggested that the increased vascular permeability is the result of an IL-2-induced suppression of endothelin-1 secretion by endothelial cells, an IL-2-induced activation of the complement cascade or TNF-alpha release from IL-2-activated T-cells. A 13-year-old male patient visited our hospital with abdominal pain. He was diagnosed with acute lymphoblastic leukemia(T cell type) by bone marrow study on his 2 nd day in hospital. On the 3 rd day of induction chemotherapy(prednisone, L-asparaginase, vincristine, intrathecal methotrexate), pulmonary edema and pleural effusion, ascites and generalized edema developed and lasted for 53 days without responding to supportive care. The laboratoy finding was that TNF-alpha was increased without evidence of infection and hypoalbuminemia was noted. It was suggested that the patient's clinical feature was induced by VLS.
Abdominal Pain
;
Adolescent
;
Ascites
;
Blood Proteins
;
Bone Marrow
;
Capillaries
;
Capillary Permeability
;
Complement System Proteins
;
Edema
;
Endothelial Cells
;
Endothelin-1
;
Humans
;
Hypoalbuminemia
;
Induction Chemotherapy*
;
Male
;
Pleural Effusion
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma*
;
Pulmonary Edema
;
T-Lymphocytes
;
Tumor Necrosis Factor-alpha
;
Vincristine
9.An Immunoserological Study of Vaccine Against Haemorrhagic Fever with Renal Syndrome.
Young Dae WOO ; Yong Kyu CHU ; Luck Ju BAEK ; Ho Wang LEE
Journal of the Korean Society of Virology 2000;30(1):11-18
Since HantavaxTM, formalin inactivated Hantaan virus vaccine (10,240 ELISA units/ml), has been developed in 1990 to prevent against haemorrhagic fever with renal syndrome (HFRS) caused by Hantaan or Seoul virus, it has been commercially available in Korea. Twenty-one healthy people were booster shot once and twice after primary basic vaccination with HantavaxTM. Seroconversion rates were measured by immunofluorescent antibody technique (IFAT), enzyme-linked immunosorbent assay (ELISA), high density composite particle agglutination (HDPA), and plaque reduction neutralization test (PRNT). Seroconversion rates of 21 vaccinees at one year after primary basic vaccination were 52.3%, 95.2%, 0.0%, 47.6%, and 28.6%, and 13 vaccinees of one month after 1st booster vaccination were 100%, 100%, 30.7%, 100% and 100% by IFAT, ELISA (IgG, IgM), HDPA and PRNT, respectively. Seroconversion rates declined slightly by twenty months, and they were 84.6%, 92.3%, 0.0%, 84.6% and 69.2% by IFAT, ELISA (IgG, IgM), HDPA and PRNT, respectively. Seroconversion rates of 9 vaccinees at three months after 2nd booster vaccination were 100%, 100%, 0.0%, 100%, and 88.9%, and 16 vaccinees at one year after the 2nd booster vaccination were 87.5%, 93.8%, 0.0%, 87.5% and 81.3% by IFAT, ELISA (IgG, IgM), HDPA and PRNT, respectively. Based on the above result HantavaxTM has proved a vigorous anamnestic response after the 1st and the 2nd booster vaccination and has persisted higher fluorescence, agglutination and neutralizing antibody titers in vaccinees.
Agglutination
;
Antibodies, Neutralizing
;
Enzyme-Linked Immunosorbent Assay
;
Fever*
;
Fluorescence
;
Formaldehyde
;
Hantaan virus
;
Korea
;
Neutralization Tests
;
Seoul virus
;
Vaccination
10.Modified Akira Yanai's method for correction of cryptotia.
Seung Keun BAEK ; Oh Kyu CHOI ; Jeong Jun PARK ; Jong Hyun LEE
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1991;18(3):499-505
No abstract available.