PURPOSE: This study was to evaluate the clinical usefulness of 99mTc-MDP bone scintigraphy for assessing vascular ingrowth into the ocular implants after enucleation or evisceration. MATERIALS AND METHODS: Twenty-four patients (M:F=7:17, mean age: 36 years), who buried a coralline hydroxyapatite after uncomplicated enucleation or evisceration surgery were studied. Dynamic and static scintigraphy on the orbit fossa were obtained after injection of 740 MBq 99mTc-MDP to evaluate the status of vascularization. The study was performed from the 3 to 33 weeks after surgery. According to the visual analysis, activity greater than nasal bridge was graded as 4, equal to the nasal bridge as 3, less than nasal bridge but greater than normal orbit as 2, greater than normal orbit but less than grade 2 as 1. Uptake ratio was also calculated by measuring the implants activity (H) and contralateral orbit activity (N). Grading score and uptake ratio were compared with clinical outcome of vascularization. Additionally, we also analyzed the vascularization status as time lapse between primary surgery and scintigraphic study and surgical methods. RESULTS: Twenty-one patients who had bone scintigraphy at 11 weeks after surgery showed increased uptake above grade 2 and greater H/N ratio than 1.56. Of these, 19 patients who had drilling surgery for permanent peg application showed adequate bleeding during the procedure. The activity grade and uptake ratio were inversely correlated with vascular ingrowth. Higher than grade 2 or greater than 1.56 in H/N ratio seemed to be an indicator for better prognosis. Accomplishment of vascularization was not affected by the surgical way such as enucleation or evisceration. CONCLUSION: 99mTc-MDP bone scintigraphy can be a useful method to evaluate the vascularized status of implants. Adequate time for 99mTc-MDP bone scintigraphy may be 11-20 weeks after enucleation or evisceration.
Durapatite* ; Hemorrhage ; Humans ; Orbit ; Prognosis ; Radionuclide Imaging* ; Technetium Tc 99m Medronate*

No abstract available.
Adolescent* ; Epidemiologic Studies* ; Humans ; Temporomandibular Joint*

No abstract available.
Animals ; Bone Resorption* ; Dinoprostone* ; Rats* ; Tooth Movement* ; Tooth*

The patient, 18-year-old girl, had a class III malocclusion with the lateral compression of the maxilla due to the premature loss of the canines, mild mandibular prognathism, and mouth breathing habit. The treatment plan consisted of 1) rapid maxillary expansion 2) a period of retention 3) extraction of the first mandibular premolars instead of surgical correction 4) completion of orthodontic treatment with multibanded system. The maxilla was separated in the midline by the application of orthopedic forces via a cemented rapid maxillary expansion device. After 18 months, She gained functional overbite-overjet relationship, good interdigitation of buccal segments, and facial harmony due to the retraction of lower anterior teeth.
Adolescent ; Bicuspid ; Female ; Humans ; Malocclusion* ; Maxilla ; Mouth Breathing ; Orthopedics ; Palatal Expansion Technique ; Prognathism ; Tooth

Thirty years ago a major arterial laceration was devasting injury, threatening survival of the limb in almost every case. Increased awareness of vascular injuries and of feasibility of immediate and more advanced arterial repair techmique reduced the amputation rate. The authors reviewed 163 patients of vascular injuries in extremities, who were admitted to Severence Hospital of the Yonsei University College of Medicine from January, 1979 to December, 1986. The results were follows : 1. Among the 163 patients, 146 patients were male patients. 2. Most of the victims were in their twenties. 3. The most common cause in the upper extremity was glass injury. The most common cause in the lower extremity was being struck by moving vehicles. 4. More complications in vascular injuries were associated with severe soft tissue crushing and comminuted fracture of the bone. 5. More favorable results can be gained through the use of microvascular techniques than through conventional techniques in vascular reconstruction.
Amputation ; Clinical Study ; Extremities ; Fractures, Comminuted ; Glass ; Humans ; Lacerations ; Lower Extremity ; Male ; Upper Extremity ; Vascular System Injuries

Neurofibromatosis is an autosomal dominant abnormality that may affect multiple organ systems. The eyelids, the orbits, the adjacent tissues and bones may be involved with varying frequency and severity. The management of orbitotemporal neurofibromatosis depends very much on the type and severity of the orbital involvement and on the functional state of the eye. Experience with surgical management of orbitotemporal neurofibromatosis involved in the orbit, the temporal soft tissue and bone with blind eye is reported. The goal of surgery is tumor resection, reconstruction of the orbital socket, aesthetic eyelids, and insertion of the artificial prosthesis. A two stage approach is recommended. In the first stage, tumor is resected and the orbital socket is reconstructed with titanium mesh plate and cranial bone graft. After reconstruction of the orbital socket, galeal flap is rotated posteriorly to cover the mesh plate and canthopexy is accomplished. Mask lift is performed to enhance aesthetics. In the second stage, correction of the bulky eyelids is achieved and orbital space for insertion of the artificial prosthesis is reconstructed. Authors have managed a orbitotemporal neurofibromatosis with blind eye of a 41-year-old male using titanium mesh plate and bone graft with satisfactory results.
Adult ; Esthetics ; Eyelids ; Humans ; Male ; Masks ; Neurofibromatoses* ; Neurofibromatosis 1 ; Orbit ; Prostheses and Implants ; Titanium ; Transplants

No abstract available.

The complexily in development of the dural sinus may result in many variations. Studies are being done on the variation of the straight sinus for clinical application of neurological diagnosis and operation. However, no data is available on Koreans, which made this study necessary. The present study was made on 50 Korean adult cadavers (average age of 67). The results were as followlng. 1. A bulbous formation of the rostral aspects of the straight sinus was present in 22 cases(44%). 2. Complete double straight sinus was present in 3 cases(6%). 3. Partial septum was observed in 8 cases (16%) with varied position and length. 4. The straight sinus terminated into both transverse sinuses(52%), the left transverse sinus(24%), the confluence of sinuses (18%), and the right transverse sinus(6%). 5. Average length and width of the straight sinus were 48.5mm and 5.9mm, respectively. 6. Nineteen cases(38%) showed no tentorial sinus drainage into the straight sinus on both sides. Number, size and terminationes.
Adult* ; Cadaver ; Diagnosis ; Drainage ; Humans

Additional a case of ectopic kidney with a literatural review was presented. Right kidney was located at the level of 4th lumbal spine and shortening of the right ureter. Left one was normal.
Kidney* ; Spine ; Ureter

Recently radiation and radioisotope are being used widely in many fields such as medicine and industry. But only a few papers were reported about the radio dermatitis due to industrial use of radiation. Authors experienced 4 cases of occupational radiodermatitis due to Ir-192 occur red during the radioisotope traspierce test. All 4 patients noticed painful swelling, erythema, and bullae on their fingers or palms 1-2 weeks after exposure. All laboratory tests to detect ystemic effects of radiation were normal. Three patients recovered after treatment with systemic and topical corticosteroid and emollient cream for 2-4 weeks. But one patient suffered from complication of fibrosis and recurrent cellulitis on his fingers. We discussed about the working situation of our patients and reviewed the literatures about the radiodermatitis.
Cellulitis ; Dermatitis ; Erythema ; Fibrosis ; Fingers ; Humans ; Radiodermatitis