동측에 발생한 대퇴골 경부 및 간부 골절의 치료

권진우,김기환,문상호,공규민,손경태,이상훈,권태우 대한골절학회 2003 대한골절학회지 Vol.16 No.3

목적: 동측의 대퇴골 경부 골절과 간부 골절이 동반된 경우에서 수술적 치료에 대해 본원에서 실시한 수술 방법들의 결과를 분석하였다. 대상 및 방법: 수술 후 1년 이상 추시 관찰이 가능하였던 11례를 대상으로 하였으며 경부 골절은 Garden 제 1형이 3례, 제 2형이 6례, 제 3형이 1례, 제 4형이 1례였다. 간부 골절은 중간부가 7례, 원위부가 4례였다. 추시 기간은 최소 1년 이상으로 평균 33개월이었고 11례 전부가 남자였으며 나이는 22세에서 54세로 평균 38세였다. 각 수술 방법에 따른 수술시간을 측정하였으며 방사선학으로 골유합의 시기, 부정유합, 불유합 등을 평가하였고 임상적으로는 골절부의 동통 및 관절 운동장애를 평가하였다. 결과: 치료 방법으로는 경부는 다발성 피고정술이 8례, 활강압방 고 나사못고정술이 1례였으며 간부의 경우는 중간부는 역행적 Ender정 고정술이 4례 , 금속판 고정술이 1례, 재건상 골수강내 고정술이 2례, 역행적 금속정 고정술이 1례였고, 원위부는 금속판 고정술이 1례, 역행적 교합성 금속정 고정술이 3례였다. 평균 수술시간은 재건상 골수강내 골종술이 180분, 다발성 핀고정술 및 금속판 고정술이 220분, 다발성 핀고정술 및 역행적 골수강내 고정술이 200분이었다. 골유합 기간은 간부 골절의 경우 평균 5개월이었다. 경부 골절에 대한 합병증으로는 간부 골절에 대해서 Ender정 고정술을 한 1례와 간부에 금속판 고정술을 한 후 지연진단되어 경부에 다발성 핀고정술을 한 1례에서 대퇴골두에 무혈성 괴사증이 병발하였으며 재건상 골수강내 금속정 삽입술을 한 1례에서 수술시 경부 골절의 정복소실이 있었으며 간부 골절에 대한 합병증으로는 역행적 금속정 고정술을 한 2례 (Ender정 1례와 교합성 금속정 1례)에서 불유합이 생겨서 금속판 고정술 및 자가골이식술로 대치하였다. 그리고 Ender정 고정술을 한 1례에서 지속적인 슬관절 주위 동통이 있었다. 결론: 대퇴골 경부 골절과 동측의 간부 골절이 동반된 경우의 수술적 치료에서 재건상 골수강내 금속 고정술은 기술적으로 어려움이 많아서 경부와 간부의 치료를 각각 하는 것이 기술적으로 쉬웠다. 수술시는 경부 골절의 수술을 먼저 하여도 고정에 어려움이 없었으며 간부 골절은 분쇄 골절이 많기 때문에 견고한 내고정이 필요하였다. Purpose: The purpose of this study was to analysis the result of operative treatment in ipsilateral femur neck and shaft fracuture. Material and Methods: Eleven cases of ipsilateral femur neck and shaft fractures were operated and followed more than 1 year. There were 11 men and mean age at index operation was 38 years (range 22~54). In neck fracture there were 3 of type Ⅰ, 6 of type Ⅱ, and 1 of typeⅢ according to Garden classification, shaft fractures were located an middle 1/3 (7 cases), at distal 1/3 (4 cases). We evaluated the operation time, union time, nonunion, malunion, and clinical evaluation with pain and joint stiffness. Result: In neck fractures treatment methods were 8 of multiple pinning, 2 of reconstruction nail and 1 of CHS, in shaft fractures 2 of DCP, 7 of retrograde nailing (3 Ender nail, 4 interlocking nail). The mean operation time was 180 minutes in reconstruction nail, 220 minutes in multiple pinning and DCP and 200 minutes in multiple pinning and retrograde nailing. The mean time for shaft union was 5 months. The complications were 1 case of neck reduction loss during operation in reconstruction nailing group, 1 of persistant pain around knee in Ender nailing group. Conclusion: The author think that reconstruction nail fixation is technically difficult, thus neck and shaft fracture be fixed individually. Neck fracture can be fixed first without difficulty and shaft fractures should be fixed rigidly due to comminution.

The Impact of Reporting Quality on Crash Risks in the Korean Stock Market

( Jin Hwon Lee ),( Jang Youn Cho ),( Chae Chang Im ) 한국회계학회 2014 회계학연구 Vol.39 No.2

This paper examines the determinants of a stock crash and aims to find whether reporting transparency has any effect on an extreme stock crash. More specifically, it delves into the quest of whether reporting transparency, as one of the determinants, has any effect on a stock crash in the Korean stock market. To analyze this possible relation, we employ companies with a stock crash record from 2006 to 2011 and use accruals quality, innate accruals quality and discretionary accruals quality as proxies for transparency. Furthermore, we adopt the proportional hazard model (Cox 1972) and PWP model (Prentice et al. 1981) for our analysis. The result conveys that accruals quality, innate accruals quality and discretionary accruals quality have a significant negative relation with stock crash risk. This indicates that the lower the accruals quality, the more likelihood of stock crash risk and that these variables can be used as indicators that can predict the possibility of crash risk. We also study whether the monitoring effect, estimated by institutional investors` trading ratio, affects transparency and crash risk. The result reveals the differences in innate accruals quality and discretionary quality under the monitoring of institutional investors. Moreover, greater involvement of institutional investors in transactions leads to a weak influence of innate accruals quality as well as a strong influence of discretionary accruals quality on a stock crash. In contrast, less involvement of institutional investors in market transactions reveals a weak relation between innate accruals quality and stock crash risk and no significant relation between discretionary accruals quality and stock crash. We conclude that the monitoring by institutional investors enhances discretionary accruals quality. However, when investors misinterpret the managers` opportunistic behavior, the possibility of stock crash risk can increase. In addition, firms that receive relatively less interest from institutional investors are more likely to not make use of their accounting information effectively.

Shelf Life Prediction of Ripe Kiwifruit (Actinidia deliciosa) Based on Near Infrared Spectroscopy

Jin Su Lee,Doo Young Moon,Ki Cheol Seong,Chun Hwon Kim,Young Cheol Um,Seung Koo Lee 한국원예학회 2006 한국원예학회 기타간행물 Vol.- No.-

특수관계자 거래가 유상증자 이후 장기성과에 미치는 영향

이진훤(Jin Hwon Lee),고윤성(Yun Sung Koh) 한국경영학회 2016 經營學硏究 Vol.45 No.2

사옥신축의 정보효과와 기업가치 결정요인에 대한 연구

이진훤(Jin-Hwon Lee),이포상(Po-Sang Lee) 강원대학교 경영경제연구소 2020 Asia-Pacific Journal of Business Vol.11 No.3

Purpose - This study examines the information effect of the disclosure of new office investments on the Korean stock market and investigates determinant of performance of sample firms. Design/methodology/approach - The sample consists of companies listed on the Korean Exchange that announced investments in new office construction for eleven-years from January 2007 to December 2017. It analyzes excess return using event study methodology and studies the determinants of abnormal return with multiple regression analysis. Findings - We find that abnormal returns of the short and long window are positive on average and statistically significant. In particular, CAR of high growth subsample is a larger positive return than that of the low one both short and long window. Difference in abnormal returns by investment size is observed only in short time window. But there is not observed difference by cash holding level. Research implications or Originality - This finding is able to be added to the evidence of the theory of corporate value maximization academically. Moreover, it shows the possibility that building a new office can have a positive effect on corporate value. It is expected to help investors make decisions because it can provide useful information to market participants in practice.

Left-sided Gallbladder with Intrahepatic Portal Vein Anomalies

Eun-Jin Kim,Jae-Hoon Lee,Soon-Young Song,Kyeong-Geun Lee,Hwon-Kyum Park,Kwang-Soo Lee 한국간담췌외과학회 2010 한국간담췌외과학회지 Vol.14 No.4

Purpose: The goal of this article was to characterize and explain the etiology of a left-sided gallbladders with intrahepatic portal vein anomalies, and these cases of this unusual anatomy were all encountered at a single center. Methods: We reviewed the movies recorded during surgery, the database information and the preoperative radiologic examinations of 1,141 patients who underwent cholecystectomies at our institution between August 2007 and July 2010 to assess the presence of left-sided gallbladder and its combined anomalies. Results: Four of 1141 patients (0.35%) were diagnosed with left-sided gallbladder. In all the cases, the gallbladder was located on the left side of the falciform ligament, under the left lobe of the liver with typical abnormal intrahepatic portal venous branching. The right posterior portal vein came directly from the main portal vein, and the right anterior portal vein originated from the left portal vein, but the ligamentum teres joined to the left branch of the portal vein in the liver. Conclusion: Left-sided gallbladder with intrahepatic portal venous branching anomaly resulted from the defective development of the central portion of the liver rather than from abnormal regression of the left umbilical vein with persistence of the right umbilical vein.

불성실공시 기업의 재무투명성과 투자자유형별 거래행태

이진훤(Jin Hwon Lee),박진우(Jinwoo Park) 한국증권학회 2015 한국증권학회지 Vol.44 No.5

본 논문에서는 유가증권시장과 코스닥 시장에 상장된 기업 중에서 2001년 8월부터 2011년 12월사이에 불성실공시법인으로 지정된 기업을 대상으로 재무투명성과 기관 및 외국인투자자의 투자행태에 따라 중장기 주가성과와 생존율 차이가 존재하는지 검증하고 있다. 분석결과, 첫째, 재무적 투명성이 낮은 기업일수록 불성실공시법인 지정의 부정적 공시효과가 크고 중장기 주가성과도 크게 부진함을 알 수 있다. 둘째, 기관 및 외국인투자자는 예고일 부터 지정일 사이에 재무투명성이 낮은 기업에서는 강한 매도행태를 보이나, 재무투명성이 높은 기업에서는 뚜렷한 매도행태가 나타나지 않고 있다. 이러한 기관 및 외국인투자자의 거래행태는 불성실공시법인으로 지정된 이후 투명성이 낮은 기업의 중장기 주가성과가 훨씬 더 부진했음을 감안할 때 정보우위를 바탕으로 손실을 회피하는 투자전략을 취한 반면에 개인투자자에게 손실이 전가되었음을 보여준다. 셋째, 횡단면 회귀분석을 통해 재무투명성이 낮고 기관 및 외국인투자자의 순매도가 클수록 중장기 주가성과가 부진한 것으로 나타나고, 두 변수 간에 교차효과도 존재하여 재무투명성이 낮으면서 기관및 외국인투자자의 순매도가 큰 경우에 중장기 주가성과가 더욱 부진한 것을 알 수 있다. 끝으로, 생존율 분석에서도 재무투명성이 낮고 기관 및 외국인투자자의 순매도가 클수록 기업의 생존율이 낮아지고 있고, 두 변수 간에 교차효과도 존재하고 있음을 알 수 있다. 결론적으로 불성실공시의 경우에도 실질적인 투자자 보호를 위해서는 기업의 재무적 투명성이 중요하다는 것을 알 수 있다. For the unfaithful disclosure firms during the period from August, 2001 to December, 2011, this paper examines if there exists any difference in long-term stock performance and survival rate depending on financial transparency and trading behavior by investor type. The results are summarized as follows. First, we find that as the financial transparency is lower, the negative announcement effect of unfaithful disclosure is larger and the long-term stock performance is much lower. Second, domestic institutional and foreign investors show strong sell-patterns for the firms of which financial transparency is low during the period from forewarning day to confirmation day of unfaithful disclosure, whereas they do not show sell-pattern for the firms of high financial transparency. This result suggests that domestic institutional and foreign investors avoid the loss through their information advantage, causing significant loss to individual investors. Third, through cross-section regression analysis, we confirm that as the financial transparency is lower and the net-sell of domestic institutional and foreign investors increases, long-term stock performance is lower. Finally, we find that the firm’s survival rate becomes lower when the net-sell of domestic institutional and foreign investors increases and the financial transparency is getting lower. We conclude that the firm’s financial transparency is important for the investor protection even in case of unfaithful disclosure.

대기전력 차단 장치

이재훤(Jae-Hwon Lee),최석환(Suk-Hwan Choi),박진한(Jin-Han Park),신호철(Ho-chul Sin),신영진(Young-Jin Sin),최석민(Suk-Min Choi) 대한전기학회 2011 대한전기학회 학술대회 논문집 Vol.2011 No.7

소아용 대장내시경을 이용한 소장내시경 검사로 진단한 원발 공장 선암종 1예

이충훤 ( Chung Hwon Lee ),김범수 ( Pum Soo Kim ),이정일 ( Jung Il Lee ),정석 ( Seok Jeong ),이진우 ( Jin Woo Lee ),권계숙 ( Kye Sook Kwon ),이돈행 ( Don Haeng Lee ),김형길 ( Hyung Gil Kim ),신용운 ( Yong Woon Shin ),김영수 ( Youn 대한소화기학회 2006 대한소화기학회지 Vol.48 No.5

A 39-year-old man presented with dizziness and melena for 2 months. Abdominal CT scan showed constrictive wall thickening with enhancement and proximal loop dilatation of the jejunum. On endoscopic examination, there was large amount of bile stained fluid in duodenum. Enteroscopy using pediatric colonoscope demonstrated an encircling mass with obstruction approximately 20㎝ distal to the ligament of Treitz. Endoscopic jejunal biopsy showed moderately differentiated adenocarcinoma. Small intestinal adenocarcinoma is uncommonly encountered in clinical practice. Because small intestine is relatively inaccessible via routine endoscopy, diagnosis of small intestinal neoplasm is often delayed for several months after the onset of symptoms. Most of the patients are diagnosed in advanced stage. Therefore, when a small bowel neoplasm is suspected, enteroscopy is the most useful study. If enteroscope is not available, enteroscopy using pediatric colonoscope may permit earlier preoperative diagnosis. We report a case of primary jejunal adenocarcinoma diagnosed by endoscopic biopsy using pediatric colonoscope. (Korean J Gastroenterol 2006;48:365-368)

만성 췌장염 환자에서 발생한 비장 동맥류와 췌관 누공에 의한 상부 위장관 출혈

이경근(Kyeong Geun Lee),이흥우(Heung Woo Lee),권오정(Oh Jung Kwon),곽진영(Jin Young Kwak),박훤겸(Hwon Kyum Park),백홍규(Hong Kyu Baik),이광수(Kwang Soo Lee) 대한외과학회 2001 Annals of Surgical Treatment and Research Vol.60 No.4