A5101555894- Spine and Intervertebral Disc Pathology
- Mechanical Behavior of Composites
- Total Knee Arthroplasty Outcomes
- Musculoskeletal pain and rehabilitation
- Orthopaedic implants and arthroplasty
- Advanced Antenna and Metasurface Technologies
- Spinal Fractures and Fixation Techniques
- Medical Imaging and Analysis
- Advanced materials and composites
- Metal and Thin Film Mechanics
- High-Temperature Coating Behaviors
- Antenna Design and Analysis
- Electromagnetic wave absorption materials
- Knee injuries and reconstruction techniques
- Structural Analysis and Optimization
- Textile materials and evaluations
- Structural Load-Bearing Analysis
- Diamond and Carbon-based Materials Research
- Ultrasonics and Acoustic Wave Propagation
- Mechanical Engineering and Vibrations Research
- Composite Structure Analysis and Optimization
- Cervical and Thoracic Myelopathy
- Scoliosis diagnosis and treatment
- Structural Behavior of Reinforced Concrete
- Dental Implant Techniques and Outcomes
Yonsei University
2015-2024
Keio University
2019
Ajou University
2014
University of Ulsan
1998-2013
Ulsan University Hospital
2006-2012
Jangheung Mushroom Industry Research
2011
Nanyang Technological University
2002
Northwestern University
1995-1996
A finite element analysis.To investigate the association between position of an inserted pedicle screw and corresponding facet contact force or intradiscal pressure.Although superior joint violation by screws is not uncommon occurrence in instrumented lumbar fusion surgery, its actual biomechanical significance well understood. Furthermore, stress on disc/facet has yet to be investigated.According positions L4 L4-L5 fusion, 4 models were simulated. These included both L3-L4 joints (facet...
Abstract The shape memory polymers (SMPs) is a potential alternative material for conventional alloys (SMAs) in various fields. Previous studies have focused on the application of SMPs materials as an to SMAs. However, considering problems such poor mechanical properties, its has been limited. This study developed biodegradable, magnetically responsive that can be used medical implants with behavior under magnetic force and improved properties by adding nanoparticles. Moreover, effect added...
In Brief Study Design. A prospective case control study. Objectives. To investigate the risk of a fall by using functional mobility tests in patients with lumbar spinal stenosis (LSS) via comparison knee osteoarthritis (KOA). Summary Background Data. LSS is degenerative arthritic disease spine that results decreasing function, impaired balance, and gait deficit, increased levels leg back pain. This physical impairment may result an later process, as shown KOA. However, there has been no...
This article used probabilistic analysis to evaluate material properties of the in vivo subject-specific tibiofemoral (TF) joint model. Sensitivity analysis, based on a Monte Carlo (MC) method, was performed using finite element (FE) model generated from computed tomography (CT) and magnetic resonance imaging (MRI) data, subjected two different loading conditions. Specifically, effects inherent uncertainty ligament stiffness, horn attachment articular surface were assessed multifactorial...
Study Design Retrospective study. Objectives To investigate the overall surgical outcome of lumbar fusion surgery in patients with Parkinson disease (PD). Summary Back ground Data Poor bone quality and muscular dysfunction are important clinical manifestations connected musculoskeletal diseases PD patients. These secondary changes caused by often result spinal pathology, indicating spine operations for some scoliosis, kyphosis, osteoporotic fracture, or degenerative spondylosis. However,...
In vitro experiment using rabbit nucleus pulposus (NP) cells seeded in atelocollagen scaffolds under the stimulation of growth factors.To demonstrate effect anabolic factors NP cultured type I and II.Atelocollagen provides intervertebral disc (IVD) for a biocompatible environment to produce extracellular matrix. IVD with exogenous transforming factor-beta 1 (TGF-β1) bone morphogenetic protein-2 (BMP-2) also render an increase matrix synthesis. However, atelocollagens was not elucidated...
Abstract Background The purpose of this study was to compare the clinical outcome surgery using robot‐assisted posterior interbody fusion with that freehand in patients degenerative spinal disease. Methods 78 participants disease were randomly allocated (1:1) minimally invasive (MIS), lumbar (Robot‐PLIF) or conventional, freehand, open‐approach, (Freehand‐PLIF). Results baseline‐adjusted scores on Oswestry Disability Index (ODI) both groups at 1 year after not different ( P = 0.688)....
In Brief Study Design. vitro experiment using bone morphogenetic protein-2 (BMP-2) and cells from the nucleus pulposus (NP), transitional zone (TZ), anulus fibrosus (AF) of human intervertebral disc (IVD). Objective. To demonstrate differential effect BMP-2 on DNA synthesis, proteoglycan osteocalcin mRNA expression in IVD NP, TZ, AF, respectively. Summary Background Data. has been proven to be effective stimulating synthesis articular chondrocytes NP. Nevertheless, different regions not yet...
In Brief Study Design. Finite element method. Objective. To investigate the changes in disc stress and range of motion (ROM) at adjacent segments after lumbar fusion based on whether or not pedicle screws are removed continuity proximal posterior ligament complex (PLC) is preserved. Summary Background Data. The ablation PLC presence have been reported to affect biomechanics fusion. However, there few studies regarding quantitative assessment their contribution overstress Methods. validated...
Abstract Shape memory polymers (SMPs) can recall their original shape when exposed to environmental factors like heat, light, or magnetic fields. These SMPs are extensively used in medical applications, notably stents, due and biocompatibility after implantation the human body. However, conventional stents require balloons for expansion, limiting flexibility. To address this, study developed an SMP material that regain its without need a balloon. effectively induce self-response,...