The purpose of this study was to investigate the gaps of bone-acetabular component interface, the initial mechanical stability and the effects of adjuvant screw fixation in the press-fitted two different shaped porous-coated acetabular components. Semi-hemispherical Harris-Galante II cup and full hemispherical Trilogy cup were press-fitted with or without adjuvant screw fixation in 40 bovine femur. The gaps of bone-implant interface were measured in each radiography of all specimen and axial compression tests and rotational stability tests were performed using servohydraulic tension-compression machine. There was significantly smaller gap at polar 1/3 region in the specimen implanted with Trilogy cup. But the adjuvant screw fixation did not affect the amount of gap. There was no significant statistical difference in axial load and rotational stability test in each situations of fixation. This study demonstrates that the initial mechanical stability is not influenced by the shape of semi-hemispherical Harris-Galante II cup and full hemispherical Trilogy cup and also independent of adjuvant screw fixation. But smaller gap of Trilogy cup at the polar 1/3 region indicates the possibility that less amout of wear debris of polyethylene or metal will be deposited and therefore less osteolysis or cup loosening will occur, but this hypothesis should be confirmed by the long-term clinical follow-up.
Acetabulum* ; Arthroplasty, Replacement, Hip* ; Femur ; Follow-Up Studies ; Osteolysis ; Polyethylene ; Radiography

No abstract available.
Cardiac Tamponade* ; Leukemia, Myeloid, Acute*

OBJECTIVE: To evaluate the basophil histamine releasability in response to IgE- and non- IgE-mediated stimuli in children with atopic asthma. Met: Basophil histamine releasability was measured in Dermatophagoides farinae (D. farinae)-sensitive atopic asthmatics, D.farinae-sensitive healthy atopics, non-atopic asthmatics, and healthy non-atopics. Basophils were stimulated with D.farinae, goat antihuman IgE antibody, formyl-Met-Leu-Phe(fMLP), and Calcium ionophore A23187. Histamine was measured by automated fluorometric technique. RESULTS: Sponianeous histamine release was higher in atopic asthmatics compared to healthy non-atopics. Histamine release by D.farinae and by anti-IgE antibody was higher in atopic asthmatics compared to the other groups. There was no difference in histamine release by fMLP among all groups. Histamine release by Calcium ionophore was higher in healthy atopics and non-atopic asthmatics compared to healthy non-atopics. The atopics showed correlation between histamine release by D.farinae, by anti-IgE antibody and total serum IgE levels. CONCLUSIONS: Spontaneous and IgE-mediated histamine release were related to the presence of both atopy and asthma, whereas non-IgE mediated histamine release was different depending on the stimuli.
Asthma* ; Basophils* ; Calcimycin ; Calcium ; Child* ; Dermatophagoides farinae ; Goats ; Histamine Release ; Histamine* ; Humans ; Immunoglobulin E

Transfollicular extrusion of sebaceous gland lobules was observed in a case of actinic keratosis and 2 cases of sebaceous hyperplasia. The patient of act.inic keratosis was a 44-year-old white man and the patients of sebaceous hvperplasia were a i3-year-old Korean girl and a 28-year-old Korean man. The sebaceous gland lobules located within the dilated infundibular area and partly between separated granular layers were intact and partly surrounded by keratin materjal. No histopathologic overlapping of sebaceous gland lobules was observed. We suppose that transfollicular ext,rusion of sebaceous gland lobules may not be artifact. but one of natural phenomena. But further study will be necessary to evaluate the significance of this peculiar histopathologic findings.
Adult ; Artifacts ; Female ; Humans ; Hyperplasia ; Keratosis ; Keratosis, Actinic ; Sebaceous Glands*

No abstract available.
Atrophy ; Pityriasis* ; Tinea Versicolor*

No abstract available.

No abstract available.
Pulmonary Artery*

No abstract available.
Arthrogryposis* ; Pyloric Stenosis*

PURPOSE: To evaluate the usefulness of CT features of appendiceal mucocele in the diagnosis and evaluation of complications. MATERIALS AND METHODS: We retrospectively reviewed CT findings and compared with operative findings in 7 cases of pathologically proven appendiceal mucocele. CT findings such as location and extent of the lesion, Issue density, thickness or calcification of the wall, presence of adjacent inflammatory infiltration, and visualization of normal vermiform appendix were analyzed. RESULTS: Appendiceal mucocele was found as homogeneous low density cystic mass adjacent to the cecum, which has no surrounding inflammatory infiltration except in one case of perforation and one case of intussusception. Mean CT number measured in 4 cases was 21 Hounsfield unit. Thin curvilinear calcifications were noted along the cystic wall in 2 cases. Normal vermiform appendix couldn't be demonstrated in all cases. CONCLUSION: Appendiceal mucocele is characterized by homogeneously low density and thin walled cystic tumor adjacent to cecum without surrounding inflammatory infiltration, and absence of normal vermiform appendix on CT. Therefore, CT is valuable in preventing operative complications of appendiceal mucocele.
Appendix ; Cecum ; Diagnosis ; Intussusception ; Mucocele* ; Retrospective Studies

BACKGROUND: For the patients undergoing propofol sedation under regional anesthesia, continuous monitoring of the hypnotic level is required for adequate sedation and rapid recovery. We evaluated the correlation between the observer's assessment of alertness/sedation (OAA/S) and the EEG-entropy. METHODS: We studied 40 patients who were scheduled for spinal anesthesia. Premedication with intramuscular midazolam 0.04 mg/kg was carried out 30 minutes before spinal anesthesia. When the anesthesia level was adequate for surgery but lower than T6, an infusion of propofol 10 mg/kg/h was started and this was decreased to 5 mg/kg/h after 1 minute. We measured the response entropy (RE), the state entropy (SE) and the OAA/S score. When the OAA/S score fell to 1, the infusion dose was decreased to half. After this, the infusion dose was decreased or increased to half or twice, respectively, to keep the OAA/S score at 2 or 3. RESULTS: The OAA/S was well correlated with the RE (Spearman's rho = 0.913) and also the SE (Spearman's rho = 0.915). With the increasing depth of sedation, there was a progressive decrease in the RE and SE (the OAA/S score/the mean of the RE/the mean of the SE = 5/98/89, 4/92/85, 3/85/78, 2/78/70, 1/66/59). CONCLUSIONS: EEG-entropy provided good information for monitoring the hypnotic level for the patients undergoing propofol sedation under spinal anesthesia.
Anesthesia ; Anesthesia, Conduction ; Anesthesia, Spinal ; Electroencephalography ; Entropy ; Humans ; Midazolam ; Premedication ; Propofol