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슬관절에 히야루론산 주입후 발생한 활막성 연골종증 : 증례 보고
최의성,김용민,김동수,손현철,박경진,조병기,배승환 충북대학교 의과대학 충북대학교 의학연구소 2009 忠北醫大學術誌 Vol.18 No.2
활막성 연골종증은 비교적 드문 양성 종양으로 관절내 활액막 결체조직의 양성 반응성 이형성에 의해 여러 개의 연골성 결절을 형성하고 이것이 관절내로 유리되어 유리체를 형성하는 질환으로 주로 슬관절에 발생한다. 활막성 연골종증의 정확한 발생 기전은 아직 밝혀지지 않았으나 외상, 감염 등이 원인으로 제시되고 있다. 저자들은 슬관절 내 히야루론산 주입후 발생한 슬관절내 활막성 연골종증을 1 례 경험하였으며, 관절경적 제거술을 통해 만족스런 결과를 얻었다. As a relatively rare benign tumor, synovial chondromatosis forms several cartilaginous nodules by the benign reactive metaplasia of synovial connective tissues within joints, which are loosed into the joints and cause a disease forming loose body mainly in knee joint. Accurate mechanism of synovial chondromatosis has not been clarified yet; however, trauma, infections and others have been suggested as its possible causes. The authors of this study experienced an example of a patient with synovial chondromatosis in knee joint occurred after the injection of hyaluronic acid in the joints and had a satisfactory outcome through the arthroscopic resection.
Shon, Dong-Hyun,Shin, Kyoung-Soon,Jang, Pung-Guk,Kim, Young-Ok,Chang, Man,Kim, Woong-Seo Korea Institute of Ocean ScienceTechnology 2008 Ocean and Polar Research Vol.30 No.3
The profile of a fixed site at station M ($34.77^{\circ}N,\;129.13^{\circ}E$) in the Korea Strait was studied from March 2006 to February 2007. The aim was to understand the relationship between the annual thermal stratification pattern and seasonal variation in phytoplankton community structure. Physicochemical factors including temperature, salinity and nutrient concentrations, which strongly influence the proliferation and diversity of phytoplankton, were measured. The study period was divided into three due to the characteristic of thermohaline structures; mixed I (March-May 2006), stratified (June-November 2006) and mixed II(December 2006-Feburuary 2007). Diatoms dominated during the mixed I (89%) and II (48%) periods, while nanoplankton group occupied over 83% of total population during the stratified period. The dominant species during the mixed I and II was Chaetoceros socialis (47% and 29%, respectively), while during the stratified period Gyrodinium sp.(4%) was the most dominant. Averaged total chl a concentrations during the mixed I and II periods were 0.61 mg $m^{-3}$ and 0.72 mg $m^{-3}$, respectively, which were at least two-fold higher than that during the stratified period (0.30 mg $m^{-3}$). The vertical mixing and convection process of the water column induced nutrient supply from the bottom layer to the euphotic zone. It also led to the dominance of diatoms during the mixed periods, whereas small phytoplankton prevailed over large phytoplankton as stratification blocked the upward movement of nutrients to subsurface during the stratified period. During the mixed I and II periods, microplanktonic chl a dominated concentrations (50% and 48%, respectively), while picoplanktonic chl a occupied over 37% of total chl a during the stratified period.
손현철(Hyun-Chul Shon),최의성(Eui-Sung Choi),김용민(Yong-Min Kim),김동수(Dong-Soo Kim),박경진(Kyoung-Jin Park),조병기(Byung-Ki Cho),박지강(Ji-Kang Park),김석원(Seok-Won Kim) 대한정형외과학회 2012 대한정형외과학회지 Vol.47 No.6
목적: 슬관절 전치환술 중에 관찰되는 그랜드피아노 징후와 컴퓨터단층촬영에서 측정된 임상적 대퇴 상과간 축과 대퇴 후과간 축이 이루는 각을 분석하여 한국인에서 적절한 대퇴삽입물 회전정렬의 기준을 알아보고자 하였다. 대상 및 방법: 슬관절 전치환술을 시행한 24명, 30예를 대상으로 대퇴 후과간 축에 3o 외회전되도록 전방 절제를 시행하고 그랜드피아노 징후의 형태와 3o 외회전 전방 절제와의 관계를 알아보고, 술 후에 시행한 컴퓨터단층촬영에서 측정된 임상적 대퇴 상과간 축과 대퇴 후과간 축과의 연관성을 분석하였다. 또한 28명, 41예를 대상으로 술 전 컴퓨터단층촬영을 실시하여 한국인에서 임상적 대퇴 상과간 축과 대퇴 후과간 축이 이루는 각의 정상 범위를 알아보았다. 결과: 대퇴 후과간 축으로부터 3o 외회전 전방 절제 후 나타나는 그랜드피아노 징후의 형태는 술 후 컴퓨터단층촬영에서 측정된 임상적 대퇴 상과간 축과 대퇴 후과간 축의 차이와 유의한 연관성을 보였다. 술 전 컴퓨터단층촬영에서 측정된 임상적 대퇴 상과간 축과 대퇴 후과간 축이 이루는 각은 평균 6.01o (범위 3.90-7.86o)로 나타났다. 결론: 한국인에서는 임상적 대퇴 상과간 축과 대퇴 후과간 축의 관계가 서양인보다 외회전 정도가 크므로, 이론적으로는 대퇴삽입물의 회전정렬이 현재보다 외회전되도록 하는 것이 바람직하며, 그랜드피아노 징후가 대퇴삽입물의 회전정렬과 연관성이 있음을 실제 계측과 컴퓨터단층촬영을 통하여 확인할 수 있었다. Purpose: We aimed to obtain a reference for the optimal rotational alignment of femoral component in Koreans through an analysis of grand piano sign observed during total knee arthroplasty (TKA) and the angle between the clinical transepicondylar axis and the posterior condylar axis (TEA-PCA angle), by computed tomography. Materials and Methods: The study subjects included 24 patients (30 cases), who underwent the anterior femoral resection, which was applied at an external rotation 3o relative to the posterior condylar axis during TKA. The relationship between anterior femoral resection with external rotation of 3o and the morphological pattern of Grand piano sign was evaluated. On postoperative computed tomography images, we evaluated the relationship between the clinical transepicondylar axis, posterior condylar axis of femoral component and grand piano sign. Moreover, a total of 28 Korean patients with 41 arthritic knees scheduled for a TKA had a preoperative computed tomography. We measured the TEA-PCA angle to evaluate the normal range in Korean subjects. Results: The morphological pattern of grand piano sign observed after the anterior femoral resection, which was applied at an external rotation 3o, showed statistically significant correlation with TEA-PCA angle. On preoperative computed tomography images, the TEA-PCA angle was 6.01 degrees (range from 3.90 to 7.86). Conclusion: The TEA-PCA angle of Koreans was different from that of the westerners. More external rotation was needed for the optimal femoral rotational alignment theoretically, and we could confirm the correlation between Grand piano sign and rotational alignment of femoral component by measurement of grand piano sign and computed tomography.
인터넷 환경하에서의 부품제조업체를 위한 판매 에이전트 개발
김현수,최형림,박영재,김경환,주명호,손형수 한국정보시스템학회 1998 情報시스템硏究 Vol.7 No.2
We are attempting to extend the region of electronic commerce from just dealing with final products between producers and consumers to dealing between producers and producers for the purpose of exciting electronic commerce in small and medium manufacturing businesses. Conventional electronic commerce applications, such as searching for product information, ordering products, paying for goods and services, are usually for the end customer support. In this paper, electronic application is focused on support for the whole range of sales activities of small and medium part manufacturing businesses. For commerce on the Internet, requests for proposals, proposals of producers, and orders of buyers should be exchanged in cyberspace. In this paper, an intelligent agent, SAPM, which has a multi-agent architecture, is proposed to support the generation of commerce materials at the producers' standpoint linking with the virtual manufacturing system.
박경진(Kyoung-Jin Park),조병기(Byung-Ki Cho),김용민(Yong-Min Kim),김동수(Dong-Soo Kim),최의성(Eui-Sung Choi),손현철(Hyun-Chul Shon),금상욱(Sang-Wook Keum) 대한정형외과학회 2011 대한정형외과학회지 Vol.46 No.3
거골 외측 돌기의 골절과 종골 재거 돌기의 골절이 동시에 발생하는 경우는 드물며 이에 대한 손상기전 및 수술 방법 등은 아직 명확히 알려져 있지 않다. 저자들은 교통사고 후에 동시에 발생한 거골 외측 돌기의 전위 골절과 종골 재거 돌기의 분쇄 골절에 대하여 관혈적 정복 및 내고정술을 이용하여 치료한 2예를 경험하였고 국내에 보고된 예가 없기에 문헌고찰과 함께 보고하는 바이다. Concomitant fracture of the lateral process of the talus and the sustentaculum tali of the calcaneus is a rare injury. There are few references in the literature that comment on the precise injury mechanism and the operative method for this type of fracture. We achieved satisfactory clinical results in 2 cases of concomitant fractures of the lateral process and the sustentaculum tali resulting from traffic accidents. We used a method of open reduction and internal fixation. We report these cases with a review of the relevant foreign literature because of no previous report in Korean literature.
박경진(Kyoung-Jin Park),최의성(Eui-Sung Choi),김용민(Yong-Min Kim),김동수(Dong-Soo Kim),손현철(Hyun-Chul Shon),조병기(Byung-Ki Cho),박지강(Ji-Kang Park),최승명(Seung-Myung Choi),은현준(Hyeon-Jun Eun) 대한정형외과학회 2013 대한정형외과학회지 Vol.48 No.6
하지의 피하기종은 드문 질환으로서 신체적 검사상 이환 부위의 염발음과 영상검사상 공기음영을 특징으로 하며, 가스 형성 박테리아에 의한 가스 괴저 혹은 괴사성 근막염의 징후로 신속한 감별진단 및 적절한 치료가 이루어지지 않았을 경우 생명에 치명적인 결과를 야기할 수 있다. 저자들은 슬관절 관절경술 후 우측 하지에 발생한 피하기종이 발생한 드문 증례를 경험하였고 신체적, 혈액적 검사상 감염징후는 보이지 않아 가스 괴저 혹은 괴사성 근막염을 배제하고 수술적 치료 없이 집중관찰 및 보존적 치료 후에 호전되어 문헌 고찰과 함께 보고하고자 한다. Subcutaneous emphysema of lower extremity is a rare disease entity. Crepitation and swelling on physical examination and gas on radiographs raise the concern of infection due to the presence of gas gangrene forming organisms. Therefore, delay of diagnosis and appropriate management can be a major predisposing factor for sepsis and further associated high mortality. We experienced a rare case of subcutaneous emphysema of the right lower extremity after knee arthroscopy; life-threatening infection was ruled out by physical examination and laboratory testing. The patient recovered uneventfully with conservative management. Therefore, we report on this case with a review of current literature.