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Article
A Very Rare Form of Ceramic Head Fracture in Bipolar Hemiarthroplasty and Total Hip Arthroplasty: Unique Experience and Literature Review
A fracture of the ceramic head in bipolar hemiarthroplasty using an inner polyliner has not been reported yet, and there seems to be no report of simultaneous breakage of the fourth-generation BIOLOX Delta cer...
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Article
Incidence and outcomes of intraoperative periprosthetic acetabular fractures during cementless total hip arthroplasty: a prospective three-dimensional computer tomography-based study
Unlike periprosthetic femoral fractures, periprosthetic acetabular fractures during total hip arthroplasty (THA) have not been evaluated in detail. We prospectively evaluated the incidence, patterns, risk fact...
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Article
Open AccessNon-thermal atmospheric pressure plasma treatment increases hydrophilicity and promotes cell growth on titanium alloys in vitro
Most medical implants are made of titanium. When titanium is exposed to air for a long time, hydrocarbons are deposited and the surface becomes hydrophobic. Cell attachment is important for bone ingrowth to oc...
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Article
Outcomes of total hip arthroplasty after failed free vascularized fibular grafting for osteonecrosis of the femoral head
Total hip arthroplasty (THA) after vascularized fibular grafting (VFG) is technically demanding with poorer outcomes compared to primary THA in patients with osteonecrosis of the femoral head (ONFH). The purpo...
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Article
Open AccessIs the construct stability of the acetabular cup affected by the acetabular screw configuration in bone defect models?
In revision surgery with significant segmental acetabular defects, adequate implant selection and fixation methods are critical in determining successful bony ingrowth. Commercially available total hip prosthe...
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Article
The incidence of focal osteonecrosis of the femoral head and its impact on conversion hip arthroplasty after screw fixation of femoral neck fractures: a multicenter retrospective study based on postoperative magnetic resonance imaging
Osteonecrosis of the femoral head (ONFH) and subsequent head collapse is a major concern after internal fixation of femoral neck fracture (FNF). Previous studies focused on ONFH incidence using plain radiograp...
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Article
Open AccessLateral pillar is the key in supporting pre-collapse osteonecrosis of the femoral head: a finite element model analysis of propensity-score matched cohorts
This study was designed as a cohort study using propensity-score matching to age, gender, and body mass index (BMI) for finite element model (FEM) analysis from pre-collapse CT images of collapsed and non-coll...
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Article
Open AccessUsefulness of intraoperative C-arm image intensifier in reducing errors of acetabular component during primary total hip arthroplasty: an application of Widmer’s method
Acetabular prosthesis positioning in total hip arthroplasty (THA) is crucial in reducing the risk of dislocation. There has been minimal research on the proper way to put the acetabular components into the saf...
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Article
Is there a correlation between fragility fractures of the pelvis (FFP) and the morphology of the true pelvis in geriatric patients?
There has been no prior study to demonstrate the relationship between the occurrence of fragility fractures of the pelvis and its morphology. The aim of this study was to investigate the effect of pelvic morph...
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Article
Open AccessComparative analysis of titanium coating on cobalt-chrome alloy in vitro and in vivo direct metal fabrication vs. plasma spraying
Titanium surface coating on cobalt-chromium (CoCr) alloy has characteristics desirable for an orthopedic implant as follows: strength, osteointegrative capability, and biocompatibility. Creating such a coated ...
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Article
Open AccessFourth-generation ceramic-on-ceramic THA results in improvements in midterm outcomes compared to third-generation THA but does not resolve noise problems: a cohort study of a single-hip system
Using data from the Korean Hip Registry, we aimed to investigate mid-term clinical and radiographic outcomes, including the prevalence of periprosthetic joint infection (PJI), osteolysis, and component looseni...
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Article
Titanium Powder Coating Using Metal 3D Printing: A Novel Coating Technology for Cobalt–Chromium Alloy Implants
Three-dimensional (3D) printing with a direct metal fabrication (DMF) technology has been innovatively introduced in the field of surface treatment of prostheses. The purpose of this study was to determine whe...
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Article
Open AccessSurgical accuracy, function, and quality of life of simultaneous versus staged bilateral Total hip Arthroplasty in patients with Osteonecrosis of the femoral head
The optimal surgical option for patients requiring bilateral hip replacement remains controversial. The purpose of this study was to compare surgical accuracy; functional outcome and health-related quality of ...
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Article
Open AccessDecreased blood pressure associated with in-vehicle exposure to carbon monoxide in Korean volunteers
Carbon monoxide (CO) is one of the primary components of emissions from light-duty vehicles, and reportedly comprises 77% of all pollutants emitted in terms of concentration. Exposure to CO aggravates cardiova...
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Article
Open AccessXXIV World Allergy Congress 2015
A1 Pirfenidone inhibits TGF-b1-induced extracellular matrix production in nasal polyp-derived fibroblasts
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Article
Human exposure and risk assessment of cadmium for residents of abandoned metal mine areas in Korea
The objective of this study is to find the Cd levels in agricultural crops compared to soil, to evaluate the relationship between daily intake dose through the multimedia/multi-pathway of human exposure and bi...
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Article
Indoor Exposure and Health Risk of Polycyclic Aromatic Hydrocarbons (PAHs) via Public Facilities PM2.5, Korea (II)
The purpose of the study is to evaluate the pollution level (gaseous and particle phase) in the public facilities for the PAHs, non-regulated materials, forecast the risk level by the health risk assessment (H...
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Article
Open AccessStem cell implantation for osteonecrosis of the femoral head
What is the most effective treatment for the early stages of osteonecrosis of the femoral head? We assessed multiple drilling and stem cell implantation to treat the early stages of osteonecrosis of the femora...
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Article
In vitro effects of mussel-inspired polydopamine coating on Ti6Al4V alloy
Mussel adhesion phenomena in nature have inspired the integration of inorganic hydroxyapatite (HA) crystals within versatile materials. One example is the simple, aqueous, two-step functionalization approach, ...
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Article
Indoor Exposure and Health Risk of Polycyclic Aromatic Hydrocarbons (PAHs) in Public Facilities, Korea
In the study, pollution levels of indoor polycyclic aromatic hydrocarbons (PAHs) in public facilities (vapor phase or particulate phase) were evaluated, and a health risk assessment (HRA) was carried out based...
