- Total Knee Arthroplasty Outcomes
- Orthopaedic implants and arthroplasty
- Orthopedic Infections and Treatments
- Knee injuries and reconstruction techniques
- Lower Extremity Biomechanics and Pathologies
- Osteoarthritis Treatment and Mechanisms
- Sports injuries and prevention
- Artificial Intelligence in Healthcare and Education
- Spine and Intervertebral Disc Pathology
- Hip disorders and treatments
- Bone fractures and treatments
- Foot and Ankle Surgery
- Shoulder and Clavicle Injuries
- Mechanical stress and fatigue analysis
- Genetic Neurodegenerative Diseases
- Hematological disorders and diagnostics
- Advanced Data Compression Techniques
- Spondyloarthritis Studies and Treatments
- Blood transfusion and management
- Hip and Femur Fractures
- Bone Tissue Engineering Materials
- Heterotopic Ossification and Related Conditions
- Video Coding and Compression Technologies
- Chemokine receptors and signaling
- Fiber-reinforced polymer composites
Seoul National University Hospital
2017-2025
Seoul National University
2021-2024
Seoul National University Children's Hospital
2022
Boramae Medical Center
2021
Yeungnam University
2001-2006
Samsung (South Korea)
2003
The application of artificial intelligence and large language models in the medical field requires an evaluation their accuracy providing information. This study aimed to assess performance Chat Generative Pre-trained Transformer (ChatGPT) 3.5 4 solving orthopedic board-style questions.
Abstract Background Patellofemoral pain syndrome (PFPS) is one of the most common conditions affecting knee joint, yet its pathomechanics remain unclear. The aim this study was to investigate changes in muscle activation and gait patterns analyze relationship between kinetic patients with PFPS. Methods This included 31 PFPS 28 healthy volunteers without any symptoms. sagittal plane motion representing primary movement evaluated identify patterns. Electromyography (EMG) used measure vastus...
Senescent chondrocytes, which are increased in osteoarthritic (OA) cartilage, promote cartilage defects and the senescent knee microenvironment by inducing senescence to surrounding normal chondrocytes secreting senescence-associated secretory proteins. Many studies have used mesenchymal stem cells (MSCs) treat OA, but MSC treatment remains challenging for clinical application owing quality control, engraftment, fibrocartilage regeneration. Here, rather than relying on direct regeneration of...
Critical bone defects remain challenges for clinicians, which cannot heal spontaneously and require medical intervention. Following the development of three-dimensional (3D) printing technology is widely used in tissue engineering its outstanding customizability. The 3D printed scaffolds were usually accompanied with growth factors, such as morphometric protein 2 (BMP-2), whose effects have been investigated on regeneration. We previously fabricated effect a polylactic acid (PLA) cage/Biogel...
Abstract In this retrospective study, 10,000 anteroposterior (AP) radiography of the knee from a single institution was used to create medical data set that are more balanced and cheaper create. Two types convolutional networks were used, deep GAN (DCGAN) Style Adaptive Discriminator Augmentation (StyleGAN2‐ADA). To verify quality generated images StyleGAN2‐ADA compared real ones, Visual Turing test conducted by two computer vision experts, orthopedic surgeons, musculoskeletal radiologist....
The transfusion rate in staged bilateral total knee arthroplasty (TKA) remains high despite the application of blood management techniques. potential robotic arm-assisted TKA (R-TKA) reducing surgery has not yet been investigated. Therefore, we aimed to evaluate effectiveness R-TKA on reduction compared with conventional (C-TKA) surgery. This retrospective study involved two groups patients who underwent 1-week interval TKA-the C-TKA group and group-using MAKO SmartRobotics (Stryker,...
Background and Objectives: The number of patients who undergo multiple operations on a knee is increasing. objective this study was to develop deep learning algorithm that could detect 17 different surgical implants plain radiographs. Materials Methods: An internal dataset consisted 5206 antero-posterior X-rays from single, tertiary institute for model development. external set contained 238 another institute. A total types including arthroplasty, unicompartmental plate, screw were labeled....
Patient-reported satisfaction following total knee arthroplasty (TKA) can be affected by various factors. This study aimed to assess patient rates and identify factors related patients, surgery, postoperative motion associated with in posterior-stabilized TKA among Asian patients.
As the importance of meniscus in joint function becomes more apparent, there is a growing interest repair techniques. Notably, biological augmentation methods have shown promising results for healing, despite their challenges practical implementation. The purpose this study was to evaluate healing and clinical outcomes with bone marrow aspirate horizontal or radial tears.
Background: Studies investigating constitutional alignment across various grades of osteoarthritis (OA) are limited. This study explored the distribution Coronal Plane Alignment Knee (CPAK) types and associated radiographic parameters with increasing OA severity. Methods: In this retrospective cross-sectional study, 17,365 knees were analyzed using deep learning software for measurements. Knees categorized on basis Kellgren Lawrence (KL) grade CPAK type. Radiographic measurements...
There has been no study examining lateral tibiofemoral (TF) osteoarthritis (OA) and objective decision-making factors affecting when patients decide to have total knee arthroplasty (TKA). The purpose of this was assess which their thresholds cause with TF OA on TKA.We conducted a retrospective cohort identified who had initially diagnosed isolated from October 2004 February 2021. We finally included 56 patients; chosen conservative treatment followed by in-depth interviews for the...
Both High-Definition Television (HDTV) and Standard-Definition (SDTV) use the MPEG-2 video coding standard, but they have different spatial resolutions. In order to support interlaced coding, incorporates various macroblock modes. Thus HDTV SDTV transcoding needs handle non-integer factor resolution down-scaling Taking into consideration details of modes, we propose motion re-estimation algorithms specially tailored for transcoding.
In patients with leg length discrepancy (LLD) and consequent pelvic obliquity, either the longitudinal axis of pelvis or a line perpendicular to ground may be used as reference for measuring lateral center-edge angle (LCEA). We aimed (1) systematically inspect which has been LCEA in previous studies; (2) evaluate frequency change radiographical classification acetabular overcoverage undercoverage per line; (3) validate trigonometric method, predicting according LLD.Studies investigating...
Abstract Objective Obtaining an optimal knee skyline view is challenging due to inaccuracies in beam projection angles (BPAs) and soft tissue obscuring bony landmarks. This study aimed assess the impact of BPA deviations on patellofemoral index measurements assessed anterior border proximal tibia as anatomic landmark for guiding BPAs. Materials methods retrospective consisted three parts. The first was a simulation using 52 CT scans knees with 20° flexion contracture replicate (Laurin) view....
Isolated polyethylene insert exchange (IPIE) has not been established as a treatment option for hyperextension instability after primary total knee arthroplasty (TKA). The purpose of the study was to evaluate survival rate and clinical outcomes IPIE with or without TKA.
Background: Although a few studies have reported the incidence of deep vein thrombosis (DVT) after opening-wedge high tibial osteotomy (OWHTO), previous focused only on symptomatic DVT. Information is lacking regarding overall DVT OWHTO, thrombus location, and relationship between clinical outcome. Purpose: To determine classify location OWHTO. We also determined whether significant differences in improvement exist patients with without at 6 months 2 years Study Design: Case-control study;...
Abstract Having osteoarthritis in one knee is reported as an independent risk factor for developing contralateral (KOA). However, no study has been designed to predict the development of KOA (cKOA). The authors hypothesized that specific factors cKOA exist and it could be accurately predicted with assistance machine learning. was defined using Kellgren‐Lawrence grade (KLG) 2 or higher. Data from 1353 unilateral patients (900 Osteoarthritis Initiative [OAI] 453 Multicenter Study [MOST]) over...
Open reduction and internal fixation is the standard treatment for a displaced medial malleolus fracture (MMFx), achieving ankle stability bony union to prevent post-traumatic arthritis. Previous techniques including tension band wiring unicortical screw are not optimal of small fragments in MMFx due their size poor manipulability. Here, we describe novel surgical method using mini-screws only MMFx.We conducted retrospective consecutive study patients who underwent surgery fragment between...
The structural integrity of steam generators in nuclear power plants is very much dependent upon the fretting wear characteristics Inconel 690 U-tubes. In this study, a finite element analysis was used to investigate on secondary side generator, which arises from flow-induced vibrations (FIV) between U-tubes and supports or foreign objects. Two-dimensional three-dimensional analyses were adopted problems. purpose two-dimensional analysis, simulated contact punch plate, demonstrate validity...