1.Role of Arthroscopy in Ankle Fracture Surgeries
Gab-Lae KIM ; Seung Hwan HAN ; Kwang Hwan PARK ; Dae-Yoo KIM ; Gyeong Hoon LIM ; Sung Hyun LEE
Journal of Korean Foot and Ankle Society 2025;29(1):1-8
The fundamental principles for treating ankle fractures, as with other intra-articular fractures, are anatomical reduction and stable internal fixation. Despite successful reduction, between 14% and 40% of patients continue to experience persistent pain or unsatisfactory functional outcomes. Furthermore, approximately 1% of patients progress to post-traumatic arthritis, necessitating further surgical intervention. Ankle fractures are frequently accompanied by intra-articular injuries, including osteochondral lesions, ligament tears, and syndesmosis injuries. Arthroscopy is becoming increasingly prevalent in managing acute ankle fractures by assessing intra-articular damage and facilitating accurate reduction. This review examined the role and indications for arthroscopy in ankle fractures, particularly emphasizing its benefits in diagnosing and managing associated injuries, including osteochondral lesions, syndesmosis, and deltoid ligament injuries. Furthermore, arthroscopy facilitates fracture reduction, offering a minimally invasive approach with a shorter recovery period and enhanced visualization. Its use extends to pediatric fractures and complex cases such as Maisonneuve and calcaneal fractures, potentially improving outcomes while minimizing complications. Understanding the evolving indications and benefits of arthroscopy for ankle fractures can lead to improved clinical outcomes and reduced complications.
2.Role of Arthroscopy in Ankle Fracture Surgeries
Gab-Lae KIM ; Seung Hwan HAN ; Kwang Hwan PARK ; Dae-Yoo KIM ; Gyeong Hoon LIM ; Sung Hyun LEE
Journal of Korean Foot and Ankle Society 2025;29(1):1-8
The fundamental principles for treating ankle fractures, as with other intra-articular fractures, are anatomical reduction and stable internal fixation. Despite successful reduction, between 14% and 40% of patients continue to experience persistent pain or unsatisfactory functional outcomes. Furthermore, approximately 1% of patients progress to post-traumatic arthritis, necessitating further surgical intervention. Ankle fractures are frequently accompanied by intra-articular injuries, including osteochondral lesions, ligament tears, and syndesmosis injuries. Arthroscopy is becoming increasingly prevalent in managing acute ankle fractures by assessing intra-articular damage and facilitating accurate reduction. This review examined the role and indications for arthroscopy in ankle fractures, particularly emphasizing its benefits in diagnosing and managing associated injuries, including osteochondral lesions, syndesmosis, and deltoid ligament injuries. Furthermore, arthroscopy facilitates fracture reduction, offering a minimally invasive approach with a shorter recovery period and enhanced visualization. Its use extends to pediatric fractures and complex cases such as Maisonneuve and calcaneal fractures, potentially improving outcomes while minimizing complications. Understanding the evolving indications and benefits of arthroscopy for ankle fractures can lead to improved clinical outcomes and reduced complications.
3.Role of Arthroscopy in Ankle Fracture Surgeries
Gab-Lae KIM ; Seung Hwan HAN ; Kwang Hwan PARK ; Dae-Yoo KIM ; Gyeong Hoon LIM ; Sung Hyun LEE
Journal of Korean Foot and Ankle Society 2025;29(1):1-8
The fundamental principles for treating ankle fractures, as with other intra-articular fractures, are anatomical reduction and stable internal fixation. Despite successful reduction, between 14% and 40% of patients continue to experience persistent pain or unsatisfactory functional outcomes. Furthermore, approximately 1% of patients progress to post-traumatic arthritis, necessitating further surgical intervention. Ankle fractures are frequently accompanied by intra-articular injuries, including osteochondral lesions, ligament tears, and syndesmosis injuries. Arthroscopy is becoming increasingly prevalent in managing acute ankle fractures by assessing intra-articular damage and facilitating accurate reduction. This review examined the role and indications for arthroscopy in ankle fractures, particularly emphasizing its benefits in diagnosing and managing associated injuries, including osteochondral lesions, syndesmosis, and deltoid ligament injuries. Furthermore, arthroscopy facilitates fracture reduction, offering a minimally invasive approach with a shorter recovery period and enhanced visualization. Its use extends to pediatric fractures and complex cases such as Maisonneuve and calcaneal fractures, potentially improving outcomes while minimizing complications. Understanding the evolving indications and benefits of arthroscopy for ankle fractures can lead to improved clinical outcomes and reduced complications.
4.Role of Arthroscopy in Ankle Fracture Surgeries
Gab-Lae KIM ; Seung Hwan HAN ; Kwang Hwan PARK ; Dae-Yoo KIM ; Gyeong Hoon LIM ; Sung Hyun LEE
Journal of Korean Foot and Ankle Society 2025;29(1):1-8
The fundamental principles for treating ankle fractures, as with other intra-articular fractures, are anatomical reduction and stable internal fixation. Despite successful reduction, between 14% and 40% of patients continue to experience persistent pain or unsatisfactory functional outcomes. Furthermore, approximately 1% of patients progress to post-traumatic arthritis, necessitating further surgical intervention. Ankle fractures are frequently accompanied by intra-articular injuries, including osteochondral lesions, ligament tears, and syndesmosis injuries. Arthroscopy is becoming increasingly prevalent in managing acute ankle fractures by assessing intra-articular damage and facilitating accurate reduction. This review examined the role and indications for arthroscopy in ankle fractures, particularly emphasizing its benefits in diagnosing and managing associated injuries, including osteochondral lesions, syndesmosis, and deltoid ligament injuries. Furthermore, arthroscopy facilitates fracture reduction, offering a minimally invasive approach with a shorter recovery period and enhanced visualization. Its use extends to pediatric fractures and complex cases such as Maisonneuve and calcaneal fractures, potentially improving outcomes while minimizing complications. Understanding the evolving indications and benefits of arthroscopy for ankle fractures can lead to improved clinical outcomes and reduced complications.
5.Targeted Therapy Following Metastasectomy for Metastatic Renal Cell Carcinoma: A Systematic Review and Meta-analysis
Hui Mo GU ; Seung Il JUNG ; Dongdeuk KWON ; Myung Ha KIM ; Jae Hung JUNG ; Mi Ah HAN ; Seung Hwan LEE ; In Gab JEONG ; Sun Il KIM ; Eu Chang HWANG
Journal of Urologic Oncology 2024;22(1):34-41
Purpose:
The aim of this study was to assess the effects of tyrosine kinase inhibitors (TKIs) following metastasectomy in patients with metastatic renal cell carcinoma (mRCC).
Materials and Methods:
A systematic search of multiple electronic databases was conducted. The inclusion criteria encompassed randomized clinical trials evaluating the use of TKIs after metastasectomy in mRCC patients. Study outcomes were relapse-free survival (RFS)/disease-free survival (DFS), overall survival (OS), and adverse events of TKIs.
Results:
Two studies with 197 randomized participants that compared TKIs following metastasectomy versus metastasectomy alone were identified. According to these studies, TKIs following metastasectomy may result in little to no difference in RFS/DFS (hazard ratio [HR], 1.01; 95% confidence interval [CI], 0.65–1.57; I2=29%; low-certainty evidence). TKIs after metastasectomy may slightly increase OS, but the CI crossed the line of no effect (HR, 0.80; 95% CI, 0.06–9.87; I2=86%; low-certainty evidence). TKIs after metastasectomy likely resulted in a large increase in adverse events (risk ratio, 2.76; 95% CI: 1.65–4.62; I2=not applicable; moderatecertainty evidence).
Conclusions
TKIs following metastasectomy did not improve RFS/DFS, but slightly improved OS. It is likely that TKIs following metastasectomy increase adverse events compared to surgery only. The certainty of evidence ranged from moderate (signaling confidence that the reported effect size is likely close to the true effect) to low (indicating that the true effect may be substantially different from the effect estimate). The findings of this study should help to inform future guidelines and clinical decision-making at the point of care.
6.Effects of Long-Term Subcultured Arbuscular Mycorrhizal Fungi on Red Pepper Plant Growth and Soil Glomalin Content.
Gopal SELVAKUMAR ; Pyoung Ho YI ; Seong Eun LEE ; Charlotte C SHAGOL ; Seung Gab HAN ; Tongmin SA ; Bong Nam CHUNG
Mycobiology 2018;46(2):122-128
Arbuscular mycorrhizal fungi (AMF) are well-known for their ability to improve plant growth and help plants withstand abiotic stress conditions. Unlike other fungi and bacteria, AMF cannot be stored, as they are obligate biotrophs. Long-term preservation of AMF spores is challenging and may lead to the loss of viability and efficiency. This study aimed to understand the effect of prolonged subculture of AMF species on the growth and glomalin-related soil protein (GRSP) from red pepper (Capsicum annuum L.). AMF spores were mass-produced using different techniques and subcultured in pots with sorghum sudangrass as the host plant for 3 years. Experimental soil samples were collected from natural grassland. Five different AMF inocula were used in triplicate as treatments. After 70 days of growth, red pepper plants were harvested and plant dry weight, plant nutrient content, mycorrhizal colonization, AMF spore count, and soil glomalin content were determined. AMF-treated plants displayed higher dry weight than controls, with only fruit dry weight being significantly different. Similarly, significant differences in phosphorous and potassium contents of the above-ground plant parts were observed between mycorrhizal and control treatments. In addition, soil GRSP content was significantly higher in plants inoculated with Rhizophagus sp. and Gigaspora margarita. The increased plant growth and GRSP content suggest that AMF can be maintained for 3 years without losing their efficiency if subcultured regularly with different symbiotic host plants.
Bacteria
;
Capsicum*
;
Colon
;
Colony Count, Microbial
;
Fruit
;
Fungi*
;
Grassland
;
Plants*
;
Potassium
;
Soil*
;
Sorghum
;
Spores
7.Pancreatic Cancer with Brain Metastases: Case Report with Literature Review.
Sang Jik LEE ; Chang Min CHO ; Min Kyu JUNG ; Seung Hyun CHO ; Gab Chul KIM ; Han Ik BAE
Korean Journal of Pancreas and Biliary Tract 2018;23(2):65-70
Pancreatic cancer is well known as a relentlessly progressive and fatal disease. Although distant metastasis is common at the time of diagnosis, brain metastasis originating from pancreatic cancer is rare and its clinical manifestation remains poorly described. Additionally, it is generally known that the prognosis for patients with pancreatic cancer and brain metastasis is very poor. Surgical resection of brain metastasis may play a limited role or may allow long-term survival in patients for whom the primary pancreatic cancer is well controlled. We present a case of brain metastasis in patient with pancreatic cancer after pylorus-preserving pancreaticoduodenectomy and complete response to chemotherapy for hepatic metastases. Brain metastasis was resected successfully, but survival period was relatively short, even though the patient received curative treatment for pancreatic cancer. This case demonstrated that resection of brain metastatic lesion from pancreatic cancer being controlled may be helpful, but the timing of resection is also important.
Brain*
;
Diagnosis
;
Drug Therapy
;
Humans
;
Neoplasm Metastasis*
;
Pancreas
;
Pancreatic Neoplasms*
;
Pancreaticoduodenectomy
;
Prognosis
8.Impact of Histologic Variants of Bladder Cancer on Oncology Outcome After Radical Cystectomy.
Jae Hyeon HAN ; Se Young CHOI ; Sangjun YOO ; Seung Hee BAEK ; Jeman RYU ; Yoon Soo KYUNG ; Wook NAM ; Won Chul LEE ; Dalsan YOU ; In Gab JEONG ; Bumsik HONG ; Hanjong AHN ; Choung Soo KIM
Korean Journal of Urological Oncology 2017;15(3):121-130
PURPOSE: To evaluate the oncological outcome of histologic variants in bladder cancer patients who underwent radical cystectomy. MATERIALS AND METHODS: We identified 393 bladder cancer patients who underwent radical cystectomy at single center between January 2007 and August 2014. Patients were divided into 4 groups according to histologic types: pure urothelial cell carcinoma (UC) and squamous, micropapillary, and other variants. Kaplan-Meier analysis was performed to assess recurrence-free (RFS) and overall survivals (OS). The patients were divided into those with pathologic stage and nodal status. RESULTS: Among 393 bladder cancer patients, squamous, micropapillary histologic variants were observed in 38 (9.7%), 26 (6.6%), respectively, whereas 39 had other variant types. Stage T3 cancer occurred in more patients with histologic variant compared with those with pure UC. Pathologic positive nodal status was also frequently found in the histologic variant groups. Subgroup analysis according to T stage and nodal status showed no significant difference in RFS and OS. On multivariate analysis, pathologic T stage (stage T2: hazard ratio [HR], 2.75; 95% confidence interval [CI], 1.34–5.63; p=0.005; stage ≥T3: HR, 3.20; 95% CI, 1.62–6.30; p=0.001) and nodal status (HR, 1.85; 95% CI, 1.05–2.56; p=0.028) were prognostic factors for RFS. CONCLUSIONS: In patients who underwent radical cystectomy, histologic variants were detected more often at advanced pathologic stage. Although histologic variants have been identified in the radical cystectomy specimen, treatment should be performed according to the pathologic stage.
Cystectomy*
;
Humans
;
Kaplan-Meier Estimate
;
Multivariate Analysis
;
Urinary Bladder Neoplasms*
;
Urinary Bladder*
9.Emphysema prevalence related air pollution caused by a cement plant.
Hyun Seung LEE ; Chul Gab LEE ; Dong Hun KIM ; Han Soo SONG ; Min Soo JUNG ; Jae Yoon KIM ; Choong Hee PARK ; Seung Chul AHN ; Seung Do YU
Annals of Occupational and Environmental Medicine 2016;28(1):17-
BACKGROUND: To identify adverse pulmonary health effects due to air pollution derived from a cement plant in Korea. The emphysema prevalence in residents around a cement plant was compared to that in the group who live far away from the plant by chest films (PA and lateral view) and high-resolution computed tomography (HRCT) lung images. METHODS: From June to August in 2013 and from August to November in 2014, chest films and HRCT scan were conducted on residents over the age of 40 who lived around a cement plant. The residents were divided into two groups; a “more exposed group (MEG)” which consisted of 1,046 people who lived within a 1 km radius and a “less exposed group (LEG)” which consisted of 317 people who lived more than 5 km away from the same plant. We compared the emphysema prevalence and estimated the OR of this between the MEG and the LEG by using a chi-square and logistic regression on chest films and HRCT. RESULTS: The emphysema prevalence was 9.1 % in the LEG, 14.3 % in the MEG on chest films and 11.4 %, 17.8 % on the HRCT, respectively. The OR of the emphysema prevalence in MEG was 2.92 (95 % CI 1.77-4.83) on the chest films, 2.56 (95 % CI 1.64–3.99) on the HRCT after sex, age, body mass index (BMI), smoking history, residency period and firewood used history were adjusted. The OR in the less than 29 pack-years smoking history was 1.66 (95 % CI 0.92–3.06) and in the more than 30 pack-years was 3.05 (95 % CI 1.68–5.52) on the chest films, and was 1.68 (95 % CI 0.98–2.90), 2.93 (95 % CI 1.72–4.98) on the HRCT, respectively. CONCLUSION: The emphysema prevalence seems to be affected by the level of exposure to air pollution derived from the cement plant as well as sex, age, BMI, and smoking history in this study. Moreover, the OR of the case of the more exposed to the air pollution was similar to that of the case in smoking.
Air Pollution*
;
Body Mass Index
;
Emphysema*
;
Internship and Residency
;
Korea
;
Leg
;
Logistic Models
;
Lung
;
Plants*
;
Prevalence*
;
Radius
;
Smoke
;
Smoking
;
Thorax
10.Air pollution and urinary n-acetyl-B-glucosaminidase levels in residents living near a cement plant.
Min Soo JUNG ; Jae Yoon KIM ; Hyun Seung LEE ; Chul Gab LEE ; Han Soo SONG
Annals of Occupational and Environmental Medicine 2016;28(1):52-
BACKGROUND: To identify adverse renal effects due to air pollution derived from a cement plant in Korea. Urinary n-acetyl-B-glucosaminidase (U-NAG) levels in residents living near a cement plant were compared to those in a group who lived farther away from the plant. METHODS: From June to August 2013 and from August to November 2014, laboratory tests for U-NAG and heavy metal were conducted on 547 study participants. Based on the level of air pollution exposure, subjects were divided into the “less exposed group,” (LEG) which consisted of 66 persons who lived more than 5 km away from the cement plant, the “more exposed group from the rural area” (MEG-R), which consisted of 272 persons, and the “more exposed group from downtown area” (MEG-D), which consisted of 209 persons who lived within a 1 km radius of the cement plant. U-NAG levels >5.67 U/L were defined as “higher U-NAG” levels. We compared the prevalence of higher U-NAG levels and estimated the adjusted odds ratio (OR) by air pollution exposure using a chi-square test and multiple logistic regression analysis. Further, we estimated the interaction between air pollution exposure and heavy metal exposure in renal toxicity. RESULTS: The OR of higher U-NAG levels by MEG-D and MEG-R compared to LEG was 2.13 (95 % CI 0.86–4.96) and 4.79 (95 CI 1.65–10.01), respectively. Urinary cadmium (U-Cd), urinary mercury (U-Hg), age, occupation, hypertension, and diabetes had a significant association with higher U-NAG levels. However, blood lead (B-Pb), sex, and smoking were not associated with higher U-NAG. Especially, concurrent exposure to heavy metals (U-Hg or/and U-Cd) and air pollution had an additive adverse effect. In the group with both 4th quartile heavy metal exposure (U-Cd or/and U-Hg) and air pollution exposure, the OR in MEG-R and MEG-D was 6.49 (95 % 1.42–29.65) and 8.12 (95 % CI 1.74–37.92), respectively, after adjustment for age, occupation, hypertension, diabetes. CONCLUSIONS: U-NAG levels seem to be affected by air pollution exposure as well as age, hypertension, diabetes, and even low levels of cadmium and low levels of mercury. Moreover, concurrent exposure to heavy metals and air pollution can have additive cytotoxic renal effects.
Air Pollution*
;
Cadmium
;
Humans
;
Hypertension
;
Korea
;
Leg
;
Logistic Models
;
Metals, Heavy
;
Occupations
;
Odds Ratio
;
Plants*
;
Prevalence
;
Radius
;
Smoke
;
Smoking

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