No abstract available.
Humans

Monostotic Fibrous dysplasia is a relatively rare condition. Three such conditions are experienced at the Dept. of Orthopedic Surgery, Han-II Hospital during the period of September 1970 to June 1972. Two of three cases were involing shaft of left and right tibia respectively, one of which was complicated by pathologic fracture. The third case was on greater trochanter of right femur. All of three cases were treated with curertage and bone graft. Excllent results were obtained.
Femur ; Fibrous Dysplasia of Bone ; Fibrous Dysplasia, Monostotic ; Fractures, Spontaneous ; Orthopedics ; Tibia ; Transplants

The term "pineal anlage tumor" has been recently proposed and few cases have been reported. We report the first Korean case of pineal anlage tumor in a 6-year-old girl who complained of headache and vomiting for 2 months. Brain MRI revealed a well defined, lobulated, calcifying mass in the pineal region. Tumor was totally removed. Pathological examination revealed a primitive pineal parenchymal tumor with melanotic epithelial component that was similar to histologic findings of melanotic neuroectodermal tumor of infancy, so-called retinal anlage tumor and of the developing pineal gland. The tumor was composed mostly of small, undifferentiated cells, Flexner-Wintersteiner rosettes, and ganglionic differentiation. The tumor also contained the cartilage and skeletal muscle cells.
Brain ; Cartilage ; Child ; Female ; Ganglion Cysts ; Headache ; Humans ; Magnetic Resonance Imaging ; Muscle, Skeletal ; Neuroectodermal Tumor, Melanotic ; Pineal Gland ; Pinealoma ; Vomiting

No abstract available.

Anatomically olecranon fracture is an intra-articular fracure, so reduction must be exact. Using the principle of Zuggurtungsosteosynthese by Weber, Pauwels' clinical study of olecranon fracture showed the superiority of tension band. 15 patients with olecranon fracture of the ulna who were treated with tension band and could be followed at the Department of Orthopedic Surgery of Han Il Hospital from January, 1974 to December, 1980 have been reviewed. The result obtained is as follows. We obtained the more rigid fixation with modifying the standard tension band locating the end of K-wire in the cortex of opposite side cortex of ulna. So, the result of treatment was satisfactory.
Clinical Study ; Humans ; Olecranon Process ; Orthopedics ; Ulna

Transient synovitis of the hip joint in children was first described by Lovett and More in 1892and is the commonest cause of painful hip in children. It is characterized by pain and limp of acute onset, generally shart-lived, unassociated with structural changes in the femoral capital epiphysis demonstrable roentgenographically.. The pathology is of interest, not because it is a disabling condition, but because of the difficulties in differentiating it from more serious disease of the hip such as Legg-Calve-Perthes disease, tuberculosis, osteomyelitis and etc. The 76 cases so diagnosed at the Han-II hospital from 1974 to 1983 were reviewed and reported as follows; 1. There was probably associated with predisposing factors such as infection, and trauma. 2. The diagnostic criteria were clinical symptoms, laboratory and radiological findings. 3. The treatment was bed rest, skin traction on the affected leg, non-weight bearing, antibiotics, sedatives and in a few cases, INH was administrated for the prevention of the tuberculosis. 4. Four hips among them revealed later as Legg-Calve-Perthes disease and tuberculous arthritis of the hip joint.
Anti-Bacterial Agents ; Arthritis ; Bed Rest ; Causality ; Child ; Clinical Study ; Epiphyses ; Hip Joint ; Hip ; Humans ; Hypnotics and Sedatives ; Leg ; Legg-Calve-Perthes Disease ; Osteomyelitis ; Pathology ; Skin ; Synovitis ; Traction ; Tuberculosis

Intraosseous ganglion is a rare disease and identified as a cystic lesion on plain radiograph. One case ofintraosseous ganglion is examined by plain radiography and CT and findings are analyzed.
Bone Cysts ; Ganglion Cysts ; Radiography ; Rare Diseases

No abstract available.
Magnetic Resonance Imaging* ; Tomography, Emission-Computed, Single-Photon*

STATEMENT OF PROBLEM: Recently, resin cements have become more widely used and have been accepted as prominent luting cements. Current resin cements exhibit less microleakage than conventional luting cements. However, the constant contact with water and exposure to occlusal forces increase microleakage even in resin cements inevitably. Most bonding resins have been modified to contain a hydrophilic resin such as 2-hydroxyethylmethacrylate (HEMA) to overcome some of the problems associated with the hydrophobic nature of bonding resins. By virtue of these modifications, bonding resins absorb a significant amount of water, and there may also be significant stresses at bonding interfaces, which may adversely affect the longevity of restorations. Therefore the reinforcement of water stability of resin cement is indispensable in future study. PURPOSE: This study was conducted to examine the influence of water retention on microleakage of two resin cements over the period of 6 months. MATERIALS AND METHODS: 32 ex acted human teeth were used to test the microleakage of a single full veneer crown. Two resin cements with different components and adhesive properties - Panavia F (Kuraray Co., Osaka, Japan) and Super-Bond C&B (Sun Medical Co., Kyoto, Japan)- were investigated. The storage medium was the physiological saline solution changed every week for 1 month, 3 months, and 6 months. One group was tested after storage for 1 day. At the end of the each storage period, all specimens were exposed to thermocycling from 5.C to 55.C of 500 cycles and chewing simulation of 50,000 cycles, and then stained with 50% silver nitrate solution. The linear penetration of microleakage was measured using a stereoscopic microscope at x 40 magnification and a digital traveling micrometer with an accuracy of +/-3 um. Values were analyzed using two-way ANOVA test, Duncan's multiple range tests (DMRT). RESULTS: Statistically significant difference of microleakage was shown in the 3-month group compared with the 1-day or 1-month group in bot systems (p<0.05) and there were statistically significant differences in microleakage between the 3-month group and the 6-month group in both systems (p<0.05). The two systems showed different tendency in the course of increased microleakage during 3 months. In Panavia F, microleakage increased slowly throughout the periods. In Super-Bond C&B, there was no significant increase of microleakage for 1 month, but there was statistically significant increase of microleakage for the next 2 months. For the mean microleakage for each period, in the 3-month group, microleakage of Super-Bond C&B was significantly greater than that of Panavia F. On the other hand, in the 6-month group, microleakage of Panavia F was significantly greater than that of Super-Bond C&B (p<0.05). CONCLUSION: Within the limitation of this study, water retention of two different bonding systems influence microleakage of resin cements. Further studies with the longer observation periods in viro are required in order to investigate water stabilty and the bonding durability of the resin cement.
Adhesives ; Bite Force ; Crowns ; Hand ; Humans ; Longevity ; Mastication ; Resin Cements* ; Silver Nitrate ; Sodium Chloride ; Tooth ; Virtues ; Water*

Normal C3H/HeN strain mice exposed to low-dose ultraviolet radiation(4 * 400 J/m) demonstrated a reduction in contact sensitization potential which locaiized to the skin area of direct UVR exposure(local suppression), where high-dose exposure of UVR(1*30.000 J/m) caused systemic suppression of CH induction, regardless of the application site of 2,4-dinitro-l-fluorobenzene(DNFB). There seemed to be two different mechanisms that are responsible for CH reaction induced by UVR. One of them, local suppression of low-dose UVR resulted from blocking the afferent phase of immune response by the functiona] inactivation of the epidermal Langerhans cells ; it was associated with lack of CH effector cells in the peripheral lymph nodes, an enhanced splenic suppressor cell acitvity, and could not be reversed by indomethacin treatment. The other, systemic suppression of high-dose UVR was mediated by enhancement of prostaglandin E(PGE); it was associated with prevention of the egress of effector cells within the regional lymph node which was caused by blocking the efferent lymphatics, and elevated plasma level of PGE. And depressed CH response was reversed when treated by indomethacin.
Animals ; Dermatitis, Contact* ; Indomethacin ; Langerhans Cells ; Lymph Nodes ; Mice* ; Plasma ; Prostaglandins E ; Skin