No abstract available in English.
Clinical Study ; Femoral Neck Fractures ; Femur Neck

No abstract available.

Surgical reconstruction of the anterior cruciate ligament is undergoing constant evolution. The variable success of these procedures can be attributed to many factors including graft selection, graft placement, graft tensioning, graft remodelling and rehabilitation program. Rigid fixation is probably the most important factor in the success of these procedures during the initial stages of healing. Arthroscopically assisted reconstruction of the ACL-deficient knee using a bone-patellar tendon-bone graft(two-incision technique) is a reliable and evolving technique. Rosenberg et al, described a one-incision technique that allows endosteal fixation of bone plugs within their femoral tunnels intraarticularly via the intercondylar notch. These two techniques are different from their femoral tunnel direction and bone plug placement. The present study was designed to develop a swine model for in vitro biomechanical testing of the bone-patellar tendon-bone ACL autograft to compare the pull-out strength of Outside-In technique and Inside-Out technique. The result were as follows: 1. Normal ACL(N=10 knees) pull-out tensile strength tests showed a maximum tensile strength of 1295.34(N), a stiffness of 120.95(N/mm), and a linear load of 1104.26(N). The failure sites were all tibial attachments. 2. Femoral and Tibial interference fit pull-out tensile strength tests(N=10 knees) showed a maximum tensile strength of 463.23±42.27(N), a stiffness of 33.62±3.18(N/mm), and a linear load of 392.51±95.42(N). The failure sites were all in the tibial tunnel area(N=9 knees), except for one which femoral tunnel area. 3. Inside-Out technique(N=15 knees) showed a maximum tensile strength of 1250.64±75.67(N), a stiffness of 94.31±26.44(N/mm), and a linear load of 1046.92±367.55(N), but the Outside-In tech-nique(N=15 knees) showed a maximum tensile strength of 805.35±54.61(N), a stiffness of 83.33±10.98(N/mm), and a linear load of 685.99±86.32(N)(p < 0.0001). The failure sites were all in the femoral tunnel area. 4. Tensile testing demonstrated that the Inside-Out technique was significantlly stronger than Outside-In technique for maximum tensile strength, stiffness and a linear load.
Anterior Cruciate Ligament Reconstruction ; Anterior Cruciate Ligament ; Autografts ; In Vitro Techniques ; Knee ; Rehabilitation ; Swine ; Tensile Strength ; Transplants

No abstract available.
Angioplasty* ; Carotid Artery, Internal* ; Carotid Stenosis*

PURPOSE: We evaluated the importance of redistribution and 24 hour reinjection images in Tl-201 SPECT assessment of myocardial viability after acute myocardial infarction (AMI). MATERIALS AND METHODS: We performed dipyridamole stress-4 hour redistribution-24 hour reinjection Tl-201 SPECT in 43 patients with recent AMI (4-16 days). The myocardium was divided into 16 segments and perfusion grade was measured visually with 4 point score from 0 to 3 (absent uptake to normal uptake). A perfusion defect with stress score 2 was considered moderate. A defect was considered severe if the stress score was 0 or l (absent uptake or severe perfusion decrease). Moderate defect on stress image were considered viable and segments with severe defect were considered viable if they showed improvement of 1 score or more on redistribution or reinjection images. We compared the results of viability assess-ment in stress-redistribution and stress-reinjection images. RESULTS: On visual analysis, 344 of 688 segments (50%) had abnormal perfusion. Fifty two (15%) had moderate perfusion defects and 292 (85%) had severe perfusion defects on stress image. Of 292 severe stress defects, 53 were irreversible on redistribution and reversible on reinjection images, and 15 were reversible on redistribution and irreversible on reinjection images. Two hundred twenty four of 292 segments (76.7%) showed concordant results on stress-redistribution and stress-reinjection images. Therefore 24 hour reinjection image changed viability status from necrotic to viable in 53 segments of 292 severe stress defect (18%). However, myocardial viability was underestimated in only 5% (15/292) of severe defects by 24 hour reinjection. CONCLUSION: The 24 hour reinjection imaging is useful in the assessment of rnyocardial viability. It is more sensitive than 4 hour redistribution imaging. However, both redistribution and reinjection images are needed since they complement each other.
Complement System Proteins ; Dipyridamole ; Humans ; Myocardial Infarction* ; Myocardium ; Perfusion ; Tomography, Emission-Computed, Single-Photon

No abstract available.
Sarcoma 180* ; Sarcoma*

OBJECTIVES: The purpose of this study was to find the protective effects of garlic on the halogenated hydrocarbon induced hepatotoxicities, and the possible protection mechanisms involved. METHODS: Male Sprague-Dawley rats received garlic (0.5 %) or regular diet, for 4 weeks. This was followed by a single dose of corn oil (the controls), carbon tetrachloride (400mg/kg body weight) and trichloroethylene (2,000mg/kg body weight) being administered to each diet group. Blood samples were collected 24 hours following the administration, and the serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) activities measured. The liver samples were studied for their cytochrome P450 and CYP2E1 contents, lipid peroxidation and histopathology. RESULTS: The results for the group receiving the 0.5 % garlic diet showed a slight decrease of CYP2E1 expression compared with the regular diet group. Carbon tetrachloride was significantly decreased the CYP2E1 contents in both the regular and garlic diet groups, but the trichloroethylene remained unchanged. Garlic did not decrease the lipid peroxidation of the liver in the control group, but attenuated the increase of lipid peroxidation caused by carbon tetrachloride. Garlic attenuated the increase of both the serum AST and ALT activities caused by carbon tetrachloride. The histopathological observations also showed that garlic attenuated centrilobular necrosis and vacuolar degenerative changes significantly in the carbon tetrachloride treated group. Conclusions : The results indicate that garlic attenuates the carbon tetrachloride-induced hepatotoxicity, through the prevention of the metabolic activation and lipid peroxidation.
Alanine Transaminase ; Aspartate Aminotransferases ; Biotransformation ; Carbon Tetrachloride ; Carbon* ; Corn Oil ; Cytochrome P-450 CYP2E1 ; Cytochrome P-450 Enzyme System ; Diet ; Garlic* ; Humans ; Lipid Peroxidation ; Liver ; Male ; Necrosis ; Protective Agents ; Rats, Sprague-Dawley ; Trichloroethylene

No abstract available.
Antibodies, Antineutrophil Cytoplasmic* ; Incidence*

This study has been examined different morphologic measurements in the evaluation of patients with lumbar spinal stenosis. Preoperative CT-Myelography from 30 patients who underwent surgery for central lumbar stenosis were analyzed. Based on this, we concluded as follows : 1) Bony measurement alone did not reliably identify patients with spinal stenosis. 2) Measurement of the transverse area of the dural sac on CT-Myelography was the most accurate method for identifying stenosis. 3) Lumbar myelography was still considered to have an important role in the valuation of a patient with stenosis because of correlation between the cross-sectional area of the dural sac and the anteroposterior diameter of the dural sac was excellent. 4) We identified soft-tissue problems as the main cause of stenosis. 5) The most common level of maximum stenosis was L4-5.
Constriction, Pathologic ; Humans ; Myelography* ; Spinal Stenosis*

Hereditary peripheral neuropathies can be categorized as hereditary motor and sensory neuropathies (HMSN), hereditary motor neuropathies (HMN), and hereditary sensory neuropathies (HSN). HMSN, HMN, and HSN are further subdivided into several subtypes. Here, we review the most recent findings in the molecular diagnosis and therapeutic strategy for hereditary peripheral neuropathies. The products of genes associated with hereditary peripheral neuropathy phenotypes are important for neuronal structure maintenance, axonal transport, nerve signal transduction, and functions related to the cellular integrity. Identifying the molecular basis of hereditary peripheral neuropathy and studying the relevant genes and their functions is important to understand the pathophysiological mechanisms of these neurodegenerative disorders, as well as the processes involved in the normal development and function of the peripheral nervous system. These advances and the better understanding of the pathogenesis of peripheral neuropathies represent a challenge for the diagnoses and managements of hereditary peripheral neuropathy patients in developing future supportive and curative therapies.
Axonal Transport ; Hereditary Sensory and Autonomic Neuropathies ; Hereditary Sensory and Motor Neuropathy ; Humans ; Neurodegenerative Diseases ; Neurons ; Peripheral Nervous System ; Peripheral Nervous System Diseases ; Phenotype ; Signal Transduction ; Wills