Search results for: Ho Joong Kim

Items from 1 to 20 out of 80 results

article

Synthesis and Self‐Assembly of Stimuli‐Responsive Amphiphilic Dendrimers

Sayun Myung, Gwang Mo Kim, Hyeongju Noh, Ho‐Joong Kim, more

Macromolecular Chemistry and Physics > 222 > 19 > n/a - n/a

The synthesis of stimuli‐responsive amphiphilic dendrimers consisting of two or three hydrophobic octadecyl groups linked to either a second or third generation hydrophilic polylysine dendron through disulfide linkage is reported. The polylysine dendrimers functionalized with four or eight tert‐butyloxycarbonyl (Boc)‐protected amino groups are characterized by ¹H NMR spectroscopy and matrix‐assisted...

article

Transcultural adaptation and psychometric properties of the Korean version of the Quality of Life Questionnaire of the European Foundation for Osteoporosis (QUALEFFO-41)

Young-Kyun Lee, Ho-Joong Kim, Jung Wee Park, Seokhyung Won, more

Archives of Osteoporosis > 2019 > 14 > 1 > 1-7

SummaryWe translated and adapted transculturally the Quality of Life Questionnaire of the European Foundation for Osteoporosis (QUALEFFO-41) for Korean patients. The translated Korean version of QUALEFFO-41 showed satisfactory reliability and validity. Purpose The aim of this study was to translate the QUALEFFO-41 for Korean patients and then validate the Korean version of QUALEFFO-41. Methods...

article

Thermo‐sensitive nanogel‐laden bicontinuous microemulsion drug‐eluting contact lenses

Se‐Hee Lee, Ho‐Joong Kim, Duck‐Hyun Kim, Won‐Seok Chang, more

Journal of Biomedical Materials Research Part B: Applied Biomaterials > 107 > 4 > 1159 - 1169

The bicontinuous microemulsion contact lens (BMCL) has nanoporous biphasic structures (100–250 nm) that are interconnected via multiple nano‐channels, providing suitable retention of various drugs for glaucoma. Timolol maleate (TM)‐carried thermosensitive poly(N‐isopropylacrylamide) (PNIPAM) nanogel (30–50 nm) was incorporated into BMCLs by soaking or by centrifuging plus soaking. Here, we present...

article

Gender-related morphological differences in sulcus angle and condylar height for the femoral trochlea using magnetic resonance imaging

Yong-Gon Koh, Ji-Hoon Nam, Hyun-Seok Chung, Hwa-Yong Lee, more

Knee Surgery, Sports Traumatology, Arthroscopy > 2019 > 27 > 11 > 3560-3566

Purpose This study aimed to elucidate the primary differences in trochlear morphology between men and women utilizing three-dimensional magnetic resonance image reconstruction of the femoral trochlea. Methods Differences in anthropometric femoral trochlea data of 975 patients (825 women, 150 men) were evaluated. The following morphological parameters were measured at three flexion angles (15°, 30°,...

article

Formation of a Micellar Pattern on Top of the Cylindrical Morphology in (PS)₄-b-PLA Copolymer Thin Films

Ho-Joong Kim, Byoung-Ki Cho

Macromolecular Research > 2018 > 26 > 12 > 1179-1184

Previously, our thin film study of a block copolymer (BCP) consisting of dibranched polystyrene (PS) and linear polylactide (PLA) demonstrated the thickness- dependent distribution of two different parallel cylindrical orientations, “(10)- on” and “(01)-on”. In this paper, we studied the thin film phase behavior of a more branched BCP in order to understand the effect of degree of branching on the...

article

Multi‐objective design optimization of high tibial osteotomy for improvement of biomechanical effect by using finite element analysis

Yong‐Gon Koh, Juhyun Son, Ho‐Joong Kim, Sae Kwang Kwon, more

Journal of Orthopaedic Research® > 36 > 11 > 2956 - 2965

Medial opening wedge high tibial osteotomy (HTO) makes the proximal tibia a highly unstable structure and causes plates and screws to be the potential sources for mechanical failure. However, asymmetrical callus and incomplete bone formations underneath the plates (TomoFix) have been recent concerns in clinical and experimental studies related to HTO due to the high stiffness. The purpose of this...

article

Gender differences in morphology exist in posterior condylar offsets of the knee in Korean population

Yong-Gon Koh, Ji-Hoon Nam, Hyun-Seok Chung, Ho-Joong Kim, more

Knee Surgery, Sports Traumatology, Arthroscopy > 2019 > 27 > 5 > 1628-1634

Purpose This study aimed to analyze the morphometric data from magnetic resonance images of arthritic knees in Korean adults, and to identify the existence of morphological differences of femoral posterior condylar offset (PCO) between genders. Methods The differences in anthropometric PCO data in 975 patients (825 female and 150 male) were evaluated. The distances from the anterior and posterior...

article

Answer to the Letter to the Editor of LJ Castro-Alves et al. concerning “Comparative study of the efficacy of transdermal buprenorphine patches and prolonged-release tramadol tablets for postoperative pain control after spinal fusion surgery: a prospective, randomized controlled non-inferiority trial” by HJ Kim et al. (2017) Eur Spine J;26:2961–2968

Ho-Joong Kim

European Spine Journal > 2018 > 27 > 11 > 2884-2884

article

Validation and cross-cultural adaptation of the Korean version of the Core Outcome Measures Index in patients with degenerative lumbar disease

Ho-Joong Kim, Jin S. Yeom, Yunjin Nam, Na-Kyoung Lee, more

European Spine Journal > 2018 > 27 > 11 > 2804-2813

Purpose To translate and cross-culturally adapt the Core Outcome Measures Index (COMI) into the Korean language and to test the psychometric properties of the Korean COMI in patients with degenerative lumbar spine diseases. Methods A cross-cultural adaptation of the COMI into Korean was carried out using established guidelines. A total of 117 patients with lumbar spinal diseases were recruited...

article

The prevalence and impact of frailty in patients with symptomatic lumbar spinal stenosis

Ho-Joong Kim, Saejong Park, Soo-Hyun Park, Jeong Hyun Lee, more

European Spine Journal > 2019 > 28 > 1 > 46-54

Purpose To investigate the prevalence of frailty in patients with symptomatic lumbar spinal stenosis (LSS) and a propensity score-matched control group, and to analyze the association between symptomatic LSS and frailty. Methods This study included 2 groups: 1 consisting of patients with symptomatic LSS (LSS group) and the other including healthy elderly subjects without degenerative spinal disease...

article

Comparative study of 1‐year clinical and radiological outcomes using robot‐assisted pedicle screw fixation and freehand technique in posterior lumbar interbody fusion: A prospective, randomized controlled trial

Ho‐Joong Kim, Kyoung‐Tak Kang, Heoung‐Jae Chun, Ji Sup Hwang, more

The International Journal of Medical Robotics and Computer Assisted Surgery > 14 > 4 > n/a - n/a

Background The purpose of this study was to compare the clinical outcome of surgery using robot‐assisted posterior interbody fusion with that using freehand posterior interbody fusion in patients with degenerative spinal disease. Methods 78 participants with degenerative spinal disease were randomly allocated (1:1) to the minimally invasive (MIS), posterior lumbar interbody fusion (Robot‐PLIF)...

article

Multi-Responsive Hydrogels Functionalized with a Photochromic Spiropyran-Conjugated Chitosan Network

Temmy Pegarro Vales, Isabel Wen T. Badon, Ho-Joong Kim

Macromolecular Research > 2018 > 26 > 10 > 950-953

In this study, multi-responsive hydrogels were prepared using spiropyran-conjugated chitosan networks. The intra/inter polymerization of methacrylamide chitosan chains, which interpenetrated into pre-formed poly(hydroxyethyl methacrylate) (pHEMA) hydrogels, and subsequent modification with spiropyran (SP) derivatives resulted in the formation of multi-responsive hydrogels. The photochromic properties...

article

Is Redo Vertebroplasty an Effective Treatment on the Same Vertebra?

Sang-Min Park, Chulhee Park, Hyoungmin Kim, Ho-Joong Kim, more

CardioVascular and Interventional Radiology > 2018 > 41 > 7 > 1058-1066

Objective Redo vertebroplasty is rarely reported. Previous studies on redo vertebroplasty included a small number of patients and lacked radiographic analysis. The purpose of this study was to assess the radiographic outcomes (restoration of vertebral body) and clinical outcomes (pain relief) in patients with recurrent or unrelieved pain after vertebroplasty with a minimum follow-up duration of 12 months...

article

Change in pain catastrophizing in patients with lumbar spinal surgery

Ho-Joong Kim, Oh Hyo Kwon, Bong-Soon Chang, Choon-Ki Lee, more

The Spine Journal > 2018 > 18 > 1 > 115-121

Even though catastrophizing can negatively moderate the outcome of surgery for lumbar spinal stenosis (LSS), it is still unclear whether pain catastrophizing is an enduring stable or a dynamic structure related to pain intensity after spine surgery.The purpose of this study was to determine whether catastrophizing would change in patients who undergo spinal surgery for LSS.A prospective observational...

article

Efficacy of Escherichia coli-derived recombinant human bone morphogenetic protein-2 in posterolateral lumbar fusion: an open, active-controlled, randomized, multicenter trial

Jae Hwan Cho, Jae Hyup Lee, Jin Sup Yeom, Bong-Soon Chang, more

The Spine Journal > 2017 > 17 > 12 > 1866-1874

The efficacy and safety of recombinant human bone morphogenetic protein-2 (rhBMP-2) as a bone graft substitute in spinal fusion has been widely researched. However, no study of the efficacy and safety of Escherichia coli-derived rhBMP-2 (E.BMP-2) with a hydroxyapatite (HA) carrier has been proposed.This study aimed to compare the efficacy and safety of fusion materials between E.BMP-2 and autogenous...

article

Biomechanical evaluation of pedicle screw fixation system in spinal adjacent levels using polyetheretherketone, carbon-fiber-reinforced polyetheretherketone, and traditional titanium as rod materials

Kyoung-Tak Kang, Yong-Gon Koh, Juhyun Son, Jin S. Yeom, more

Composites Part B: Engineering > 2017 > 130 > C > 248-256

In the present study, we compared the biomechanical effects of changing the material properties of the fixation rod on adjacent segments of the spine, with respect to the use of polyetheretherketone (PEEK), carbon-fiber-reinforced (CFR) PEEK, and traditional titanium (Ti) rods. Using a validated intact lumbar finite element model for L2-L5, interbody fusion models for L3-L4 in one-level and L3-L5...

article

Polyphenol-functionalized hydrogels using an interpenetrating chitosan network and investigation of their antioxidant activity

Boram Kim, Byungman Kang, Temmy Pegarro Vales, Si Kyung Yang, more

Macromolecular Research > 2018 > 26 > 1 > 35-39

In this work, polyphenol-modified hydrogels were prepared and their antioxidant activities were investigated. Poly(2-hydroxyethyl methacrylate) (pHEMA)-based hydrogels were first synthesized and subsequently functionalized with an interpenetrating polymer network (IPN) structure comprising crosslinked chitosans and p(HEMA) networks. The resulting hydrogels were further modified with polyphenols such...

article

Multi-color fluorescence of pNIPAM-Based nanogels modulated by dual stimuli-responsive FRET processes

Seung Hwan Lee, Hoa Thi Bui, Temmy Pegarro Vales, Sung Cho, more

Dyes and Pigments > 2017 > 145 > C > 216-221

We report the modulation of the dual photo/thermo-responsive multicolor fluorescence from poly(N-isopropyl acrylate) pNIPAM-based nanogels. The thermo-responsive pNIPAM-crosslinked matrix was covalently copolymerized with nitrobenzoxadiazole (NBD) monomers as a Förster resonance energy transfer (FRET) donor and electrostatically conjugated with photochromic spiropyran (SP) dyes as a FRET acceptor...

article

Effect of defect-healing in graphene nanosheets on the mechanical properties of polyimide nanocomposites

Kyeongmin Kim, Ki-Ho Nam, Jaekwan Lee, Ho-Joong Kim, more

Carbon > 2017 > 122 > C > 614-621

We report an effective method for fabricating graphene-based multifunctional polyimide (PI) nanocomposites via in situ polymerization, by the chemical defect-healing of pyridine functionalized reduced graphene oxide (H-Py-RGO). H-Py-RGO was successfully obtained through intramolecular cross-dehydrogenative coupling (ICDC). The mechanical properties, and thermal stability of the PI/H-Py-RGO nanocomposites...

article

Biomechanical analysis of lumbar decompression surgery in relation to degenerative changes in the lumbar spine – Validated finite element analysis

Quan You Li, Ho-Joong Kim, Juhyun Son, Kyoung-Tak Kang, more

Computers in Biology and Medicine > 2017 > 89 > C > 512-519

There are no studies about the biomechanical analysis of lumbar decompression surgery in relation to degenerative changes of the lumbar spine. Therefore, the purpose of this study was to compare, by using finite element (FE) analysis, the biomechanical changes of the lumbar spine in terms of annulus stress and nucleus pressure after two different kinds of lumbar decompression surgery in relation to...

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The Spine Journal (16)
European Spine Journal (7)
Macromolecular Research (5)
Journal of Orthopaedic Research® (3)
Journal of the American Chemical Society (3)
Knee Surgery, Sports Traumatology, Arthroscopy (3)
Angewandte Chemie (2)
Angewandte Chemie International Edition (2)
European Archives of Oto-Rhino-Laryngology (2)
Medical & Biological Engineering & Computing (2)
Pain Practice (2)
The International Journal of Medical Robotics and Computer Assisted Surgery (2)
The Knee (2)
Accounts of Chemical Research (1)
Advanced Materials (1)
Archives of Osteoporosis (1)
Artificial Organs (1)
Carbon (1)
CardioVascular and Interventional Radiology (1)
Catalysis Surveys from Asia (1)
Chemistry – A European Journal (1)
Clinical Biochemistry (1)
Composites Part B: Engineering (1)
Computers in Biology and Medicine (1)
Dyes and Pigments (1)
International Journal of Precision Engineering and Manufacturing (1)
Journal of Applied Polymer Science (1)
Journal of Biomedical Materials Research Part B: Applied Biomaterials (1)
Journal of Electronic Materials (1)
Journal of Intelligent & Robotic Systems (1)
Journal of Materials Science: Materials in Medicine (1)
Journal of Molecular Catalysis A: Chemical (1)
Journal of Natural Medicines (1)
Journal of Surgical Oncology (1)
Journal of the Korean Physical Society (1)
Macromolecular Chemistry and Physics (1)
Macromolecules (1)
Nanomedicine: Nanotechnology, Biology, and Medicine (1)
Organic Letters (1)
Pain Medicine (1)
Quality of Life Research (1)
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INFONA - science communication portal

Search results for: Ho Joong Kim

Synthesis and Self‐Assembly of Stimuli‐Responsive Amphiphilic Dendrimers

Transcultural adaptation and psychometric properties of the Korean version of the Quality of Life Questionnaire of the European Foundation for Osteoporosis (QUALEFFO-41)

Thermo‐sensitive nanogel‐laden bicontinuous microemulsion drug‐eluting contact lenses

Gender-related morphological differences in sulcus angle and condylar height for the femoral trochlea using magnetic resonance imaging

Formation of a Micellar Pattern on Top of the Cylindrical Morphology in (PS)₄-b-PLA Copolymer Thin Films

Multi‐objective design optimization of high tibial osteotomy for improvement of biomechanical effect by using finite element analysis

Gender differences in morphology exist in posterior condylar offsets of the knee in Korean population

Validation and cross-cultural adaptation of the Korean version of the Core Outcome Measures Index in patients with degenerative lumbar disease

The prevalence and impact of frailty in patients with symptomatic lumbar spinal stenosis

Comparative study of 1‐year clinical and radiological outcomes using robot‐assisted pedicle screw fixation and freehand technique in posterior lumbar interbody fusion: A prospective, randomized controlled trial

Multi-Responsive Hydrogels Functionalized with a Photochromic Spiropyran-Conjugated Chitosan Network

Is Redo Vertebroplasty an Effective Treatment on the Same Vertebra?

Change in pain catastrophizing in patients with lumbar spinal surgery

Efficacy of Escherichia coli-derived recombinant human bone morphogenetic protein-2 in posterolateral lumbar fusion: an open, active-controlled, randomized, multicenter trial

Biomechanical evaluation of pedicle screw fixation system in spinal adjacent levels using polyetheretherketone, carbon-fiber-reinforced polyetheretherketone, and traditional titanium as rod materials

Polyphenol-functionalized hydrogels using an interpenetrating chitosan network and investigation of their antioxidant activity

Multi-color fluorescence of pNIPAM-Based nanogels modulated by dual stimuli-responsive FRET processes

Effect of defect-healing in graphene nanosheets on the mechanical properties of polyimide nanocomposites

Biomechanical analysis of lumbar decompression surgery in relation to degenerative changes in the lumbar spine – Validated finite element analysis

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