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

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

In dealing with lateral condylar injuries of humerus, the chance of pitfalls and having a poor functional result with poor management is much greater because it is a physeal injury involving intraarticular surface. Lateral condylar physeal injuries of distal humerus have been regarded as Salter-Harris Type IV injury. But indeed, true Salter-Harris type IV injury of lateral condyle of distal humerus are rare. It should be regarded as Salter-Harris type II injury. Previously Milch classified the lateral condyle fracture of distal humerus as type I and type II after Stimson's description. It seems to be most useful to plan therapeutic modalities by classification of lateral condyle fracture on the basis of stage of displacement proposed by Jakob et al and Milch's type. Authors performed clinical analysis about lateral condyle fracture of distal humerus in children. Among 79 cases, who were treated at department of orthopaedic surgery, Hyundai haesung hospital from Mar. 1982 to Mar. 1988, it was possible to follow up in 30 cases. The result were as follows ; 1. The age incidence was confined from age of 3 to age of 12. Peak age was around 6. 2. Most of fractures were Milch's type II (75 cases) in contrast to Milch's type I (4 cases). 3. Precise differentiation of stage I and II displacement was needed for evaluation of stability of fracture and planning treatment modalities. 4. In case of stage II displacement, cast immobilization alone was insufficient. K-wire fixation was needed for prevention of displacement and better result. 5. In all of cases(30 cases) overgrowth of lateral condyle and spur formation were noticed but it has no clinical disabilities. 6. There were no significant differences of outcome between different fracture types and different stage of displacement. But significant differences of outcome were noticed how treatment performed. Accurate anatomical reduction and stable fixation was needed. 7. 2 cases of severe cubitus varus(20') were occured. In 21 cases, carrying angle were changed, valgus change were more common than varus change. It was thought to be relative undergrowth of lateral condyle of humerus and malunion as its causes. 8. In all cases, there were no loss of R.O.M.
Child ; Classification ; Clinical Study ; Follow-Up Studies ; Humans ; Humerus ; Immobilization ; Incidence

Various methods of spinal instrumentation have been used for treatment of unstable fracture & fracture-dislocation of thoraco-lumbar spine. Recently, newly designed short segment fixation devices using pedicle screw were designed and there was a trend to use this posterior short segment instrumentation using pedicle screw. We have used AO internal fixator as posterior instrumentation for unstable spine fracture of thoracolumbar spine since November, 1987. Previously we used Harrington instrumentation and Luque rod wiring for treatment of unstable fracture of thoracolumbar spine and we reported the results of clinical analysis of those systems on Feb, 1987. We analyzed the clinical results of 93 cases those who underwent operative treatment using each posterior instrumentation system for unstable fracture and fracture-dislocation of thoraco-lumabr spine at our hospital from Dec. 1983 to Oct. 1989. Among that 93 cases, the Harrington instrumentation were 35 cases, Luque rod instrumentation were 36 cases and AO internal fixator were 22 cases. The results were as follows:1. The most commonly injured level was Ll (44 case) and followed by T12(33 cases, 86%). 2. By Francis Denis classification, Burst type fracture was most common(42 cases, 45%). 3. Change of kyphotic angle were checked on lateral X-ray view. There no significant differences between those groups using H-rod(58.64%), Luque-rod(54.8%), and AO internal fixator(60.1%) on immediate post-op X-ray. But there noticed least loss of correction of kyphotic angle when using AO internal fixator comparing with other groups. 4. The correction rates of height of anterior and middle column were checked by Denis-Edward method, there noticed best correction rate in AO internal fixator group. 5. The ROM of trunk were checked, there were no significant differences in H-rod, L-rod, and AO internal fixator group in long term follow up.
Classification ; Dislocations ; Follow-Up Studies ; Internal Fixators ; Methods ; Pedicle Screws ; Spine

Dental caries is a major health problem affecting an estimated 90% of school children worldwide. This cross-sectional study aimed to evaluate oral health knowledge, attitude, and practices among secondary school students in Kuching, Sarawak. Data was collected using a pretested questionnaire on 209 randomly selected students from four schools. Results showed no significant differences between the gender and age groups in terms of knowledge level, but significant differences were observed between the schools. The students had positive attitude towards the dental services, but their dental visits were still low due to fear of dental needle and handpieces. Toothbrush and toothpaste were still the most commonly used oral hygiene aids. As compared to parents and friends, dentist was perceived to have more influence on oral hygiene practices among the students. Girls consumed more sweets, snacks and soft drinks than boys. However, girls spent longer time to brush their teeth and brush more frequently. Oral health education should be a life-long practice and incorporated into the school environment with the support of teachers and parents.

OBJECTIVE: The purpose of this study is to determine the prevalence of sinus disease and abnormalities in patients scheduled for dental implant in maxillary posterior area using cone beam CT. PATIENTS AND METHOD: One hundred five maxillary sinuses in eighty-seven patients who underwent cone beam CT for dental implant in maxillary posterior area were included. Any patients who had previous history of sinus operations were not included. The sinus abnormalities were classified as follows ; normal (membrane thickness <2 mm), mucosal thickening (membrane thickness > or = 2 mm and <6 mm), partial opacification (membrane thickness >6 mm but not full), full opacification and mucous retention cyst. The relationship between the remaining bone height, sinus symptoms and maxillary sinus abnormality was statistically surveyed. RESULTS: Of 105 maxillary sinuses in 87 patients, 80 (76%) maxillary sinuses showed abnormalities ; 4 of 4 symptomatic patients and 76 of 101 asymptomatic patients. Mucosal thickening was the most common sinus abnormality. Only 3 (4%) of 80 maxillary sinus abnormalities were caused by the odontogenic origin. The prevalence of maxillary sinus abnormalities was higher in the symptomatic group than asymptomatic one (p<0.05). CONCLUSION: Maxillary sinus abnormalities were very common in the patients who were planning implantation in maxillary posterior areas. This result supports that thorough evaluation for maxillary sinus is recommended when implant treatment is planned for those areas.
Cone-Beam Computed Tomography ; Dental Implants ; Humans ; Maxillary Sinus ; Prevalence ; Retention (Psychology)

OBJECTIVE: The purpose of this study is to determine the prevalence of sinus disease and abnormalities in patients scheduled for dental implant in maxillary posterior area using cone beam CT. PATIENTS AND METHOD: One hundred five maxillary sinuses in eighty-seven patients who underwent cone beam CT for dental implant in maxillary posterior area were included. Any patients who had previous history of sinus operations were not included. The sinus abnormalities were classified as follows ; normal (membrane thickness <2 mm), mucosal thickening (membrane thickness > or = 2 mm and <6 mm), partial opacification (membrane thickness >6 mm but not full), full opacification and mucous retention cyst. The relationship between the remaining bone height, sinus symptoms and maxillary sinus abnormality was statistically surveyed. RESULTS: Of 105 maxillary sinuses in 87 patients, 80 (76%) maxillary sinuses showed abnormalities ; 4 of 4 symptomatic patients and 76 of 101 asymptomatic patients. Mucosal thickening was the most common sinus abnormality. Only 3 (4%) of 80 maxillary sinus abnormalities were caused by the odontogenic origin. The prevalence of maxillary sinus abnormalities was higher in the symptomatic group than asymptomatic one (p<0.05). CONCLUSION: Maxillary sinus abnormalities were very common in the patients who were planning implantation in maxillary posterior areas. This result supports that thorough evaluation for maxillary sinus is recommended when implant treatment is planned for those areas.
Cone-Beam Computed Tomography ; Dental Implants ; Humans ; Maxillary Sinus ; Prevalence ; Retention (Psychology)

PURPOSE: The aim of this study was to investigate the timing and sequence of eruption of permanent canine and premolars, and to evaluate tooth calcification stage on emergence in Korean children. MATERIALS AND METHODS: The sample was comprised of 1,266 children (male 720, female 546) aged from 7-13 years. Tooth eruption and calcification stages were determined through oral and panoramic radiographic examination, respectively. Probit analysis was used to calculate the timing of tooth eruption and tooth calcification stage from these cross-sectional data. RESULTS: In both males and females, eruption occurred around the time when one third of tooth root or more was formed. The sequence was as follows: first premolar, canine, and second premolar in maxilla, and canine, first premolar and second premolar in mandible. Tooth eruption occurred earlier in girls compared with boys, averaging 0.63 years. CONCLUSION: Eruption sequence is identical in males and females with a trend for females to erupt earlier than males. Tooth eruption becomes earlier over the past decades in Korean children.
Aged ; Bicuspid ; Child ; Dentition, Permanent ; Female ; Humans ; Male ; Mandible ; Maxilla ; Tooth ; Tooth Calcification ; Tooth Eruption ; Tooth Root

Telomerase activity has been detected in many human immortal cell lines and tumor tissues. We studied telomerase activity in a series of human musculoskeletal tumors. Twenty-eleven tumors from 27 patients were studied using a sensitive PCR (polymerase chain reaction)-based technique, the TRAP(telomeric repeat amplication protocol) assay. Telomerase activity was present in seven tumors(25.9%). Telomerase activity was present in six of 18 malignant tumors(33.3%), while telomerase was active in one of 9 benign tumors(11.1%). Telomerase was active in 40% for osteosarcomas, 25% for soft tissue sarcomas, 16.7% for giant cell tumors of bone, and none for benign tumors. These results are a remarkablely low positive rate of telomerase activity in comparing with other types of carcinoma. In conclusion, it suggests that the musculoskeletal tumors, arisen from mesenchymal cells, follow different pathways of neoplastic progression or it is due to tile specific characteristics stick of sarcomas-abundant extracellular matrix and lack of tumor cells-differed tumor those of carcinomas.
Cell Line ; Extracellular Matrix ; Giant Cell Tumors ; Humans ; Osteosarcoma ; Polymerase Chain Reaction ; Sarcoma ; Telomerase*

OBJECTIVES: This study was performed to explore the association of tryptophan hydroxylase(TPH) gene with diagnosis of alcohol dependence and/or clinical characteristics such as age of onset, family history, and severity of symptoms in Korean alcoholics. METHODS: The genotype and allele frequencies of TPH in 100 male hospitalized patients who met DSM-IV criteria for alcohol dependence were investigated using polymerase chain reaction and restriction fragment length polymorphism and were compared with 100 agematched healthy male control subjects. And the associations between gene polymorphisms and clinical characteristics in alcoholic patients were explored. RESULTS: The distributions of TPH genotype and allele in alcohol dependent patients were not different from control subjects. However, the frequencies of TPH genotype in early-onset alcoholic patients, which were 0.57, 0.39, and 0.04(AA, AC and CC, respectively), were significantly different from those of late-onset alcoholics(0.34, 0.45, and 0.21, respectively). "A" allele was found more frequent in early-onset alcoholics. CONCLUSION: The result suggests that TPH gene polymorphism is associated with early-onset alcoholic patients possibly related with inherited abnormalities of serotonin system.
Age of Onset ; Alcoholics ; Alcoholism ; Alleles ; Diagnosis ; Diagnostic and Statistical Manual of Mental Disorders ; Gene Frequency ; Genotype ; Humans ; Male ; Polymerase Chain Reaction ; Polymorphism, Restriction Fragment Length ; Serotonin ; Tryptophan Hydroxylase* ; Tryptophan*