While there have been not a few reports on the seroepidemiological characteristics of hepatitis B virus (HBV) infection in Korea, most of them, however, have had several limitations; operational definition of HBV infection, validity of detection methods of HBV serologic markers, size of the study population, and confirmation of the vaccination history against HBV, etc. In order to avoid such limitations, authors randomly selected 1,495 healthy adults among the 217,511 insured (target population) of Korean Medical Insurance Corporation, living in seoul, and tested HBV(HBsAg, anti-HBs and anti-HBc) of all the subjects were tested, 392(26.2%) of interview failure cases 742 nonvaccinee were excluded from the actual population. Finally, the serologic markers tested of 742 nonvaccinee (study population) only were analyzed for the seroepidemiologic observation of the natural infection of HBV. The seroepidemiological characteristics of HBV infection in Korea were as follows ; 1 Point prevalence of HBs antigenemia was 11.7(9.1-14.3)% in male, which was slightly higher than that of female, 9.5(3.7-15.3)%. This level was one of the highest among those of Asian-Pacific countries. Decreasing tendency of HBsAg prevalence after the age of 50 was observed, which seems to be due to selective attrition of HBV chronic carriers among the healthy adults and/or to the limited-lasting duration of the HBs antigenemia, in part. 2. Point prevalence of anti-HBc(78.8% in male, 50.9% in female) was higher than that of anti-HBs(65.2% in male, 46.6% in female), respectively. And both of them were higher in male than in female. Increasing tendency of the prevalence of both antibodies was observed by age, which seems to be largely due to recurrent infection in adults and to some cumulative effect, in part, of their relatively longer-lasting duration. 3. The level of HBV infection defined by positive for at least one of the 3 serologic markers of HBV by RIA method was 84.7(81.8-87.6)% in male and 61.2(51.9-70.5)% in female, which was also one of the highest among those of Asian-Pacific countries. The proportion of susceptible population to HBV infection among healthy adults was 15.3% in male and 38.8% in female. 4. The relative frequency of current or past infection and chronic carrier among HBV infected person was estimated. The currently or past infected was estimated 75.7% in male and 71.8% in female, and chronic carrier state, 13.8% in male and 14.1% in female. The analysis of the geometric mean of the antibody titer in anti-HBs positive sera indicated also to be compatible with the above findings, suggesting that active, even though inapparent, infection of HBV occur so frequently among healthy adults in Korea.
Adult* ; Antibodies ; Carrier State ; Female ; Hepatitis B Surface Antigens ; Hepatitis B virus* ; Hepatitis B* ; Hepatitis* ; Humans ; Insurance ; Korea ; Male ; Prevalence ; Radioimmunoassay ; Seoul* ; Vaccination

No abstract available.
Animals ; Atrophy* ; Electric Stimulation* ; Muscle, Skeletal* ; Rats* ; Sciatic Nerve*

No abstract available.
Animals ; Electric Stimulation* ; Rats* ; Skin*

No abstract available.
Humans ; Pregnancy, Twin* ; Twins*

Septic arthritis of the children's hip causes acute or chronic inflammatory change in structure about the joint, and results in serious destruction. Due to recent advance of the diagnostic technique and of the antibiotics, the incidence of it's sequelae is decreased. The management of acute stage with antibiotics and early surgical drainage has been well established in the literature, but the management of residual anatomic deformity is less documented, and little comprehensive classification or treatment program has been outlined. We experienced two patients who had sequelae induced by delayed diagnosis and improper treatment. One had a complete loss of femoral neck with femoral head remaining in the acetabulum. Femoral neck reconstruction was performed using proximal femur : i.e., Open reduction of femoral head to femur shaft with distal transfer of greater trochanter (1st stage) followed by varus osteotomy(2nd stage) and follow-up period was 3.5 years. Another had loss of femoral head and neck, dislocation of the hip, and Larsen's trochanteric arthroplasty was performed with 6 Years follow-up. Satisfactory results were obtained in both patients who had reconstructive surgery, so we report these cases with related literatures.
Acetabulum ; Anti-Bacterial Agents ; Arthritis, Infectious ; Arthroplasty ; Child ; Classification ; Congenital Abnormalities ; Delayed Diagnosis ; Dislocations ; Drainage ; Femur ; Femur Neck ; Follow-Up Studies ; Head ; Hip ; Humans ; Incidence ; Joints ; Neck

In the past two decades, the incidence of rubella infection has decreased due to a nation-wide rubella vaccination program. Therefore the rate of rubella Ig G antibody has decreased. This means an increasing vulnerability to rubella infection among the group, with negative Ig G antibodies. The study was conducted in January of 1992 to April of 1996. The subjects were 1,010 fertile women(ages 20/45 years). The study was performed at Park Women`s Clinic to investigate the status of rubella antibody in Korean fertile women. The results were as follows. 1. The positive rate of rubella Ig G and Ig M antibody were 80.5% and 1.5%, respectively. 2. The mean age of positive rubella Ig G group was 28.5+/-3.6 years. The positive rate of rubella Ig G antibody was decreased by an increase in age with a significant level at p < 0.05. 3. The positive rate of rubella Ig G antibody was 63.3% in 1992, 71.3% in 1993, 87.5% in 1994, 81.1% in 1995 and 83.8% in 1996. The increase in the positive rate of rubella Ig G antibody by year for 5 years was statistically significant at p < 0.05. 4. The positive rubella Ig M antibody was noted in 15 women. Among them, one woman was tested in 1993, 5 women in 1995 and 9 women in 1996. The incidence of rubella infection had increased by years, and was statistically significant at p < 0.05. 5. The mean titer of rubella Ig G antibody was 47.18+/-50.04 IU/ml. The titer of rubella Ig G antibody was decreased by the increased in at age(p < 0.05). We observed a low positive rate of rubella Ig G antibody as compaired with other studies that were performed before 1990. Therefore, to prevent sporadic rubella infections, rubella vaccinations should be given to unmarried women.
Antibodies ; Female ; Humans ; Incidence ; Rubella* ; Single Person ; Vaccination

Segmental Spinal Instrumentation is effective operative procedure in unstable fracture and fracture-dislocation of the thoracolumbar spine, providing rigid spinal stability and reduces needs of external support and complications. Fifty nine patients with unstable fracture and fracture-dislocation of thoracolumbar spine were treated with Harrington rod instrumentation and sublaminar wiring(31 patients) and Luque rod instrumentation with sublaminar wiring(28 patients) in Hyun Dai Hae Seong Hospital, Ulsan, Paik Hospital, Pusan from Dec. 1983 to April 1986. We have analyzed the results of treatment about two type of S.S.I. and obtained following conclusions; l. In 59 patients, T12 level injury was 17 cases, Ll level was 25 cases and so T12 and Ll involvement were 71%. 2. By Francis Denis classification, 28 cases were burst type fracture, 20 cases were fracture-dislocation type, 6 cases were seat belt type and 5 cases were wedge compression type. 3. In Harrington rod with S.S.I., initial kyphotic angle was 22.4° and postoperative angle was 7.4° and correction rate was 66.9%; in Luque rod with S.S.I., preoperative kyphotic angle was 21.7° and postoperative angle was 6.5° and correction rate 69.6%. So there was no difference of correction rate in two type of S.S.I. 4. In Harrington rod with S.S.I., the loss of reduction was 1.2° and the loss was 7%; in Luque rod with S.S.I., the loss of reduction was 7.2° and the loss rate was 48%. So the loss of reduction of Luque rod with S.S.I. was greater than that of Harrington rod with S.S.I. 5. After removal of implants, Luque rod with S.S.I. patients have better range of motion than Harrington rod with S.S.I. patients clinically, but it needs more follow-up because of a few cases(18 cases).
Busan ; Classification ; Follow-Up Studies ; Humans ; Range of Motion, Articular ; Seat Belts ; Spine ; Surgical Procedures, Operative ; Ulsan

The ankle is a modified complex hinge joint consisting of the distal tibio-fibula joint (Syndesmosis), and the ankle joint proper(hinge joint), and is important in weight bearing, standing and walking. So, the goals of treatment of ankle fracture are anatomical positioning of talus in the mortise and regaining a smooth articular suface. Unless these requisites are achieved by treatment, post-traumatic arthritis is likely to occur. We analyzed 120 cases of ankle fracture, most of which were treated surgically by A-0 method, in Department of Orthopaedic Surgery, Hyundai Haesung Hospital from January, 1982 to December 1985. The results are as follows; 1. The most common victim was 3rd–4th decades man, and the cause was direct blow. 2. The most common type was pronation-external rotation type of Lauge-Hansen classification, and Type A of Danis-Weber type. 3. The more favorable result was noted in Danis-Weber type A than type B and type C,and noted worst result in pilon fracture. 4. Favorable results can be gained by semi-tubular plate in fibular fracture than any other fixation material. 5. On application of semi-tubular plate, there were no significant differences in results between that placed posteriorly and that placed laterally. 6. We did not transfix the distal tibio-fibular joint in stable Danis-Weber type C injury without any specific sequellae. 7. We obtained better result by removal of transfixing screw 6 weeks after operation. 8. We obtained good results with only 3 weeks immobilization after operation.
Ankle Fractures ; Ankle Joint ; Ankle ; Arthritis ; Classification ; Immobilization ; Joints ; Methods ; Talus ; Walking ; Weight-Bearing

No abstract available.
Cell Count* ; HIV* ; Humans ; Panax*

In 1971, for purpose of reduction of peak stress occuring in cement and trabecular bone of the acetabulum, Harris reported a series of metal-backed acetabular components with removable polyethylene liners that could be replaced if excessive wear occured. Modular designs of hip prostheses have become popular recently, but they introduce the risk of disassembly of the components postoperatively. And introduce of loosening and infection of femoral or acetabular components by debris of polyethylene liner. We report a case of mechanical disassembly of polyethylene liner in cementless metal backed cup, and review previously reported articles.
Acetabulum ; Hip Prosthesis ; Polyethylene