Publications by authors named "Yongwoon Shin"

Hexachlorobutadiene (HCBD) is a persistent organic pollutant (POP), and a toxin whose primary target organ is the kidney. Consequently, quantifying the amount of HCBD in food is essential for determining whether it poses a health risk. The current study established and validated an analytical method for assessing HCBD in food using gas chromatography/mass spectrometry (GC/MS).

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Background: With increasing life expectancy, stem cell therapy is receiving increasing attention. However, its application is restricted by ethical concerns. Hence a need exists for design of safe procedures for stem cell procurement.

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Purpose: The autologous collagen-induced chondrogenesis technique is described, and the results of a 6-year follow-up clinical study using this technique are presented.

Methods: 30 patients with International Cartilage Repair Society (ICRS) Grade III/IVa symptomatic chondral defects of the knee treated with enhanced microdrilling using atelocollagen were prospectively examined in this clinical series. The median age of the patients was 39.

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Tibial tubercle avulsion fracture caused by knee extensor is very rare; furthermore, non-traumatic fractures during running or bilateral fractures have been reported. The purpose of this study was to evaluate any differences according to the mechanisms of injury in adolescents with tibial tubercle avulsion fracture.Thirty patients with tibial tubercle avulsion fractures were reviewed and the average age was 13 years 1 month.

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Background: Temporary, implant-mediated hemiepiphysiodesis (ie, guided growth) is an effective and popular treatment method for lower extremity angular deformities. The purpose of this study was to retrospectively evaluate the safety profile of 3 different implants used to correct lower extremity angular deformities in pediatric patients.

Methods: We retrospectively reviewed a consecutive series of pediatric patients with lower extremity angular deformities who underwent implant-mediated guided growth by 2 surgeons at our institution between 2004 and 2014.

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Background: While juvenile osteochondritis dissecans (JOCD) lesions have greater healing potential than equivalent lesions in adults, only 50% of JOCD lesions demonstrate radiographic healing after six months of non-operative treatment. Two previous studies have produced nomograms to predict a patient's probability of healing with non-operative treatment based on patient and lesion characteristics. The purpose of this study was to determine inter- and intra-observer reliability of the predictive nomograms.

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Purpose Of Review: Although tibial eminence fractures are uncommon, their importance cannot be overemphasized in skeletally immature patients because of the fracture's close proximity to both the tibial physis as well as the attachment between the tibial eminence and the anterior cruciate ligament, the latter being a key component in maintaining knee stability. This review focuses on recent trends in treatment concepts and devices.

Recent Findings: Recent literature on this topic addresses the existence of a variety of treatment modalities, but the majority of these articles analyzed a limited number of cases and insisted on the merits of their own methods.

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Misoprostol is reported to prevent non-steroidal anti-inflammatory drug (NSAID)-associated gastroduodenal complications. There is, however, limited information regarding the efficacy of DA-9601 in this context. We performed a comparative study on the relative efficacy of DA-9601 and misoprostol for prevention of NSAID-associated complications.

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Background: We performed a multicenter, open, randomized, clinical study of autologous cultured osteoblast injection for long-bone fracture, to evaluate the fracture healing acceleration effect and the safety of autologous cultured osteoblasts.

Methods: Sixty-four patients with long-bone fractures were randomly divided into two groups, i.e.

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Background And Aims: Lafutidine is a novel H(2)-receptor antagonist with gastroprotective activity that includes enhancement of gastric mucosal blood flow. The aim of the present study was to test the efficacy of 7- or 14-day lafutidine-clarithromycin-amoxicillin therapy versus a lansoprazole-based regimen for Helicobacter pylori eradication.

Methods: Four hundred and sixty-three patients with H.

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Background: Sports-related open lateral collateral ligament injury of the interphalangeal joint of the great toe has not been previously described in the English literature.

Hypothesis: This injury can occur in adolescents while performing barefooted high-kicking or fast-running exercises involving rapid, 180 degrees turns on a dry, rough, wooden floor in a Taekwondo gymnasium. Injury occurs when the whole body turns quickly while supported only by the plantar aspect of the distal phalanx of the great toe.

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Objective: Adipose tissue-derived mesenchymal stem cells (ATMSCs) have been shown to differentiate into bone, cartilage, fat or muscle. However, it is not certain that ATMSCs are equal to bone marrow-derived mesenchymal stem cells (BMMSC) for their bone and cartilage forming potential. The purpose of this study was to answer the question.

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A littoral cell angioma (LCA) is a rare benign vascular tumor of the spleen. A 60-year-old man, with multiple nodules in imaging study and liver cirrhosis graded as Child-Pugh classification class A, was transferred for splenomegaly. A thrombocytopenia was found on hematological evaluation.

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Background: The use of a buttress plate in addition to lag screws has been recommended for fractures to the posterior wall of the acetabulum. However, there is a lack of possible criteria for the use of screws alone. This study aimed to evaluate the use of screws alone for fixation of posterior wall fractures to the acetabulum.

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Objectives: Evaluation of risk factors for loss of reduction in initially stable intertrochanteric fractures.

Design: Retrospective database analysis.

Setting: University teaching hospital.

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Background: Non-erosive reflux disorder, which represents more than 60% of gastro-esophageal reflux disorders, lacks objective parameters for diagnosis. The purpose of this study was to evaluate the correlation between non-erosive minimal lesions at the lower esophagus and gastro-esophageal reflux disorder.

Methods: Patients were asked to answer a symptom questionnaire.

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