It is important to recongnize that the finding of Clostridia in a wound does not establish the diagnosis of gas gangrene. Clostridia may be present in traumatic wound under three circumstances: (1) simple contamination, (2) anaerobic cellulitis, and (3) gas gangrene. Confusion between clostridial cellulitis and gas gangrene may be avoided by remembering that clostrdial cellulitis is not associated with muscle invasion, and seldom produce swelling, pain, toxemia, or shock. Authors had been treated a case of clostridial infection with a vascularized groin flap followed by good result.
Cellulitis ; Clostridium perfringens ; Clostridium ; Diagnosis ; Gas Gangrene ; Groin ; Shock ; Toxemia ; Wounds and Injuries

The cutaneous metastaaes from carcinoma of breast produce four definite clinical types: inflammatory carcinoma, telangiectatic carcinoma, nodular carcinoma, and carcinoma en cuirasse. We present a case of 51-year-old woman who had purpuric, hard, sclerotic plaque with ulceration, crust and. several pea-sized hemorrhagic papulovesicular eruptions on the right chest wall for one year. Histopathological findings show metastatic ductal carcinoma but, the primary focus was not determined.
Breast ; Carcinoma, Ductal ; Female ; Humans ; Middle Aged ; Thoracic Wall ; Ulcer

Eleven cases of the free vascularized bone graft have been performed in the Department of Orthopaedic Surgery, Yonsei University Hospital during the period of 30.9 months from February 1981 to December 1985. Follow up ranges from 8 to 62 months. The indication for the procedure was reconstruction of extensive bony defect after acute trauma in 3 cases, osteomyelitis in 3 cases, chronic nonunion 3 cases, bone tumor in one case and congenital pseudoarthrosis in one case. The results were obtained as follows; 1. To reconstruct the lower extremity the vascularzed bone graft has much more advantages than the other conventional method and the technique may be very useful in the management of certain difficult reconstructive problem of the lower extremity. 2. In the defects of bone and skin, even infected, composite bone and soft tissue transfer can be filled by one stage operation and made the infection heal more rapidly. 3. In children the vacularized fibular graft was hypertrophied and similar to thickness of tibia.
Child ; Follow-Up Studies ; Humans ; Lower Extremity ; Methods ; Osteomyelitis ; Pseudarthrosis ; Skin ; Tibia ; Transplants

Although epidural fibrosis after laminectomy is considered to be the cause of pain in a number of patients, the exact relationship of postoperative scar tissue and symptoms remains controversial. However it is generally accepted that epidural fibrosis after surgical decompression of neural tissue has to be avoided. To diminish the likelihooa that such a scar will form, fat grafts have been used to create an interpositional membrane. Compression of a nerve after the use of a fat graft is rare; postoperative cauda equina syndrome, resulting from compression by a grafted fat. We report the case of a patient who had this complication.
Cauda Equina* ; Cicatrix ; Decompression, Surgical ; Fibrosis ; Humans ; Laminectomy* ; Membranes ; Polyradiculopathy* ; Spine* ; Transplants*

The purposes of this study were to estimate the material properties of the recently developed domestic composite resins for core filling material (Chemical, Dual A, Dual B; Vericom, Korea) and to compare them with other marketed foreign products (CorePaste, Den-Mat, USA; Ti-Core, Essential Dental Systems, USA; Support, SCI-Pharm, USA). Six assessments were made; working time, setting time, depth of polymerization, flexural strength, bonding strength, and marginal leakage. All items were compared to ISO standards. All domestic products satisfied the minimum requirements from ISO standards (working time: above 90 seconds, setting time: within 5 minutes), and showed significantly higher flexural strength than Core Paste. Dual A and B could, especially, reduce the setting time to 60 seconds when cured with 600 mW/cm2 light intensity. All experimental materials showed 6 mm depth of polymerization. Bond strengths of Ti-Core and Dual B materials were significantly higher than the other materials. Furthermore, three domestic products and Ti-Core could reduce the microleakage effectively.
Composite Resins* ; Polymerization ; Polymers

The purposes of this study were to estimate the material properties of the recently developed domestic composite resins for core filling material (Chemical, Dual A, Dual B; Vericom, Korea) and to compare them with other marketed foreign products (CorePaste, Den-Mat, USA; Ti-Core, Essential Dental Systems, USA; Support, SCI-Pharm, USA). Six assessments were made; working time, setting time, depth of polymerization, flexural strength, bonding strength, and marginal leakage. All items were compared to ISO standards. All domestic products satisfied the minimum requirements from ISO standards (working time: above 90 seconds, setting time: within 5 minutes), and showed significantly higher flexural strength than Core Paste. Dual A and B could, especially, reduce the setting time to 60 seconds when cured with 600 mW/cm2 light intensity. All experimental materials showed 6 mm depth of polymerization. Bond strengths of Ti-Core and Dual B materials were significantly higher than the other materials. Furthermore, three domestic products and Ti-Core could reduce the microleakage effectively.
Composite Resins* ; Polymerization ; Polymers

This study was designed to analysis the displacement and stress distribution of individual tooth by orthodontic force during distal en masse movement of the maxillary dentition. In this study, three dimensional finite element analysis was used. Author made the finite element model of maxillary teeth, periodontal ligament, alveolar bone and bracket with anatomic and physiologic characteristics on computer. Author analysed and evaluated the displacement and stress distribution of individual tooth when extraoral force, Class II intermaxillary elastics, ideal arch wire, MEAW and tip back bend were used for distal en masse movement of the maxillary dentition. These analyses were also applied in the case of the maxillary second molar were not extracted. Author compared the results of the cases which maxillary second molar were extracted or not. The results were expressed quantitatively and visually. Author obtained following results, 1. When anterior headgear was applied, the posterior translation, posterior tipping, and vertical displacement of teeth were produced more in the anterior segment of the dentition. 2. When Class II intermaxillary elastics were applied in the ideal arch wire, the teeth disp acement were usually produced in the anterior segment. But when tip back bend were added in the ideal arch, the orthodontic force produced by elastics were transmitted to the posterior segment. As increasing the tip back bend, posterior translation and lingual tipping of anterior teeth were decreased, posterior translation and tipping displacement of posterior teeth were increased, and extrusion of anterior teeth by Class II elastics were decreased. 3. When MEAW and Class II elastics were applied, the teeth movement were similar with the case of ideal arch wire and Class II elastics, but more small and uniform teeth displacement were produced. Compared with the ideal arch wire, posterior tipping of the posterior segment were more produced than lingual tipping displacement of the anterior segment. 4. When the maxillary second molar without orthodontic appliance existed, the displacement of maxillary first molar were decreased.
Dentition* ; Finite Element Analysis* ; Molar ; Orthodontic Appliances ; Periodontal Ligament ; Tooth

No abstract available.
Endocarditis* ; Lupus Erythematosus, Systemic*

No abstract available.
Animals ; Macrophages, Peritoneal* ; Mice* ; Mycobacterium bovis*

No abstract available.
Lymphedema*