A5002851718- Spine and Intervertebral Disc Pathology
- Spinal Fractures and Fixation Techniques
- Scoliosis diagnosis and treatment
- Pelvic and Acetabular Injuries
- Cervical and Thoracic Myelopathy
- Musculoskeletal pain and rehabilitation
- Medical Imaging and Analysis
- Anesthesia and Pain Management
- Bone fractures and treatments
- Orthopaedic implants and arthroplasty
- Bone health and osteoporosis research
- Orthopedic Infections and Treatments
- Orthopedic Surgery and Rehabilitation
- Bone and Joint Diseases
- Bone Tissue Engineering Materials
- Hip disorders and treatments
- Infectious Diseases and Tuberculosis
- Antenna Design and Analysis
- Pregnancy-related medical research
- Radio Frequency Integrated Circuit Design
- Energy Harvesting in Wireless Networks
- Wireless Power Transfer Systems
- Spinal Hematomas and Complications
- Shoulder Injury and Treatment
- Hip and Femur Fractures
Yonsei University
2016-2025
Ulsan National Institute of Science and Technology
2019-2023
Severance Hospital
1991-2022
Gangnam Severance Hospital
2012-2021
Sungkyunkwan University
2018
Hallym University Dongtan Sacred Heart Hospital
2017
Sangmyung University
2015-2016
Samsung (South Korea)
2007-2014
Chungbuk National University
2004-2011
Jangheung Mushroom Industry Research
2011
Scoliosis is defined as a lateral spinal curvature with Cobb angle of 10° or more. This abnormal may be the result an underlying congenital developmental osseous neurologic abnormality, but in most cases cause unknown. Imaging modalities such radiography, computed tomography (CT), and magnetic resonance (MR) imaging play pivotal roles diagnosis, monitoring, management scoliosis, radiography having primary role MR CT indicated when presence suspected. In interpreting features it essential to...
Patients with lumbar spinal stenosis (LSS) may experience neuropathic symptoms, such as back pain, radiating and neurogenic claudication. Although the long-term outcomes of both nonsurgical surgical treatments are similar, surgery provide shortterm benefits, including improved symptoms lower risk falling. Decompression is mainly used for treatment, depending on decompression degree associated instability, combination therapy be given. Minimally invasive has been demonstrated to produce...
Owing to the rise in global population and living standards, waste treatment has inevitably become a critical issue for sustainable environment. In particular, an effective recycling process, it is vital disassemble different types of materials by removing adhesives used packaging. However, this removal process requires harsh solvents (acidic organic) that are unfriendly nature may cause additional pollution. To address issue, functional adhesive can be removed without use have drawn...
Prospective study of 34 patients with thoracolumbar spinal fractures.To assess the reliability magnetic resonance imaging (MRI) for posterior ligament complex injury in fractures.Some researchers have studied fracture using MRI. However, most did not evaluate findings MRI compared operative findings.Thirty-four were evaluated by palpation interspinous gap, plain radiography, and before operation. In addition to conventional sequences, a fat-suppressed T2-weighted sagittal sequence was...
Background: The LIM mineralization protein-1 (LMP-1) gene encodes for an intracellular protein that induces the expression of several bone growth factors. purpose present study was to determine feasibility and optimal dose adenoviral delivery LMP-1 cDNA promote spinal fusion. Methods: A replication-deficient human recombinant adenovirus constructed with driven by a cytomegalovirus promoter. In phase 1, in vitro dose-response experiment performed adenovirus-LMP-1 (AdLMP-1) concentration...
A rabbit and rhesus monkey model of posterolateral intertransverse process spine arthrodesis was used.To test two new soft tissue compression resistant ceramic/collagen sponge carriers for recombinant human bone morphogenetic protein-2.After determining that a plain collagen too compressible large animals in fusion application, the authors demonstrated good induction using biphasic ceramic phosphate granules (60% hydroxyapatite/40% tricalcium phosphate) as carrier matrix protein 2 monkeys....
Study Design. A nonhuman primate lumbar intertransverse process arthrodesis model was used to evaluate modifications a plain collagen sponge deliver recombinant human bone morphogenetic protein-2 (rhBMP-2). Objectives. To the feasibility of enhancing delivery rhBMP-2 with established carrier by adding biphasic ceramic phosphate (BCP) granules (15% hydroxyapatite, 85% tricalcium phosphate) or allograft chips provide compression resistance for posterolateral spine arthrodesis. Summary...
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 Background A vast amount of literature describes the incidence fracture as a risk for recurrent osteoporotic fractures in western and Asian countries. Osteoporosis evaluation treatment after low-trauma fracture, however, has not been well characterized postmenopausal women Asia. The purpose this study was to characterize patient health system characteristics associated with diagnosis management osteoporosis among hospitalized fragility Methods Patient surveys medical charts...
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...
Idiopathic scoliosis is a structural lateral curvature of the spine unknown etiology. The relationship between degree and cardiopulmonary function has not yet been investigated. purpose this study was to determine association characteristics.Ninety children who underwent preoperative pulmonary or cardiac evaluation at single institution over 41 months were included. They divided into thoracic-dominant (group A, n=78) lumbar-dominant B, n=12) groups. Scoliosis severity evaluated using Cobb...
Twenty-one patients with tibial pilon fractures were treated ring fixators and arthroscopy. There 2 Type I, 14 II, 5 III using the Ruedi classification. In Types I II fractures, applied to tibia foot, closed reduction was performed, monitoring quality of an image intensifier. When questionable, arthroscopy used, if necessary, readjusted. Olive wires used achieve fixation. all 4 injuries, a limited open performed instead Approximately 8 weeks after operation, foot mounting removed. The...
We reviewed 87 patients who had undergone expansive cervical laminoplasty between 1999 and 2005. These were divided into two groups: those diabetes mellitus did not. There 31 in the group 56 control group. Although a significant improvement Japanese Orthopaedic Association score was seen both groups, post-operative recovery rate better than that of diabetic The patients’ age symptom duration adversely affected only. Smoking not affect outcome either A logistic regression analysis found...
A fully integrated 2.4 GHz CMOS power amplifier (PA) in a standard 0.18 mum process is presented. Using parallel-combining transformer (PCT) and gate bias adaptation, discrete control of the PA achieved for enhancing efficiency at back-off. With 3.3 V supply, has peak drain 33% 31 dBm output power. By applying control, reduction 650 mA current consumption can be over low range while satisfying EVM requirements WLAN 802.11g WiMAX 802.16e signals.
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...