A5082125891- Knee injuries and reconstruction techniques
- Total Knee Arthroplasty Outcomes
- Photonic and Optical Devices
- Electromagnetic Simulation and Numerical Methods
- Optical Network Technologies
- Tendon Structure and Treatment
- Central Venous Catheters and Hemodialysis
- Semiconductor Lasers and Optical Devices
- Lower Extremity Biomechanics and Pathologies
- Solar Energy Systems and Technologies
- Advanced Fiber Optic Sensors
- Orthopedic Surgery and Rehabilitation
- Building Energy and Comfort Optimization
- Solar Thermal and Photovoltaic Systems
- Electromagnetic Scattering and Analysis
- Sports injuries and prevention
- Shoulder and Clavicle Injuries
- Optical Coatings and Gratings
- Orthopaedic implants and arthroplasty
- Venous Thromboembolism Diagnosis and Management
- Musculoskeletal synovial abnormalities and treatments
- Electric Motor Design and Analysis
- Numerical methods for differential equations
- Diamond and Carbon-based Materials Research
- Innovative Energy Harvesting Technologies
National Technical University of Athens
2008-2024
General University Hospital of Patras
2022-2024
University Hospital of Ioannina
2019-2024
St. Mary's Hospital
2019
SSM Health Care
2019
St. Mary's Medical Center
2019
University of Peloponnese
2015
University of Ioannina
1998-2011
National Centre of Scientific Research "Demokritos"
2010
National and Kapodistrian University of Athens
2007
Background: The objective of this study was to evaluate the effectiveness reconstructions anterior cruciate ligament resist tibial and rotational loads. We hypothesized that current reconstruction techniques, which are designed mainly provide resistance loads, less effective in limiting knee instability response combined Methods: Twelve fresh-frozen young human cadaveric knees (from individuals with a mean age [and standard deviation] 37 ± 13 years at time death) were tested use...
It is possible that gait abnormalities may play a role in the pathogenesis of meniscal or chondral injury as well osteoarthritis knee patients with anterior cruciate ligament deficiency.The three-dimensional kinematics ligament-deficient knees are changed even during low-stress activities, such walking, but can be restored by reconstruction.Case control study.Using optoelectronic analysis system, we examined 13 knees, 21 ligament-reconstructed and 10 subjects uninjured walking.Normal...
To establish a quantitative biomechanical relationship between the anterior cruciate ligament graft and medial meniscus, 10 human cadaveric knees were examined using robotic/universal force-moment sensor testing system. In response to combined 134-N 200-N axial compressive tibial load, resulting kinematics of knee in situ forces ligament, graft, meniscus measured. Anterior translation significantly increased after transection, 6.8±2.3 mm at full extension 12.6±3.3 30° flexion. Consequently,...
We evaluated knee function, tensile properties, and histologic appearance of a healing intraarticular bone-patellar tendon-bone autograft after anterior cruciate ligament reconstruction in goat model. The patellar tendon graft was fixed such that both bone-to-bone (femoral tunnel) bone-to-tendon (tibial could be studied. total anteroposterior translation significantly increased from 3 to 6 weeks, ranging increases 28.8% 46.7%. In situ forces the replacement decreased as much 22.2% at weeks....
While a number of in vitro studies have shown that the tension on an anterior cruciate ligament (ACL) replacement graft at time fixation has affect joint stability, most vivo reported little or no long-term difference outcome. The objectives this study were to (1) establish large animal model which differences knee stability are present time-zero after ACL reconstruction with grafts fixed low (5 N) and high (35 initial (2) quantitatively determine if these effects remain six weeks healing...
Abstract A potential strategy to enhance ligament healing by transplantation of mesenchymal stem cells (MSCs), which are demonstrated differentiate into fibroblast‐like in vitro, is presented. The objective this study was follow transplanted nucleated from bone marrow, contain MSCs, the medial collateral (MCL) over time, and examine their phenotype survivability. It hypothesized that MSCs marrow would following adaptation environment. model employed eliminates immune response a donor...
Spent Coffee Ground (SCG) is the main coffee industry by-product, rich in dietary fibers and polyphenols. The extractable material of SCG was fractionated, phenolic compounds were identified quantified. Chlorogenic neochlorogenic acids as components, Total Phenolic Content (TPC) determined to be 2.16% (dry basis). Furthermore, characterized terms Dietary Fiber content, which amounted 66%. valorized for development a bakery product (cookie) enhanced with fiber bioactive Cookies produced...
We present a very simple and accurate numerical method for calculating the cutoff frequencies of arbitrary refractive index profile optical fibers, including discrete data from measurements. From Maxwell's equations we derive transmission line equivalent circuit any mode an fiber which is frequency dependent. The problem finding transformed into resonance circuit. algorithm uses no Bessel or other complicated functions could be implemented on small microcomputers.
A solar chimney power plant has three major components: (1) circular collector (Greenhouse) (2) tall cylinder in the center of ( Solar Chimney) (3) set air turbines geared to electric generators around bottom The warms up inside greenhouse by irradiation and, due its buoyancy, tends escape through Chimney. This warm stream is leaving part thermodynamic energy placed path airflow. stations were named Aero-Electric Power Plants (SAEPPs) their similarity Hydro Electric Plants. efficiency SAEPPs...