항생제 혼합 시멘트 정을 이용한 장관골 감염성 불유합의 이단계 치료

조세현,정순택,박형빈,황선철,하용찬,황인환 대한골절학회 2004 대한골절학회지 Vol.17 No.4

목적: 장관골 감염성 불유합의 치료 시 항생제 혼합 시멘트 정을 이용한 이단계 재건술의 결과를 분석하고자 한다. 대상 및 방법: 1998년 1월부터 2002년 9월까지 장관골 감염성 불유합으로 이단계 재건 수술을 받은 41예 (대퇴골 26예, 경골 15예)를 대상으로 하였다. 일단계 수술에서는 광범위한 변연 절제술, 부골 제거 및 세척술과 기존 고정 장치의 제거 또는 외고정 장치로의 교환을 시행한 후 시공 (dead space)과 불유합 주변 연부조직 내 항생제 혼합 시멘트 정을 삽입하였다. 임상적 감염 증상이 호전된 평균 8.7주 (3주~32주) 후 이단계 재건술로서 Ⅰ군은 내고정 장치 (금속판 5예, 골수강내 금속정 8예), Ⅱ군은 외고정 장치 (Ilizarov 25예, Monofixator 3예)로 각각 고정하고 17예에서는 골내 이동술이나 골 연장술을 시행하였다. 양군 모두 필요한 경우 골 이식과 시멘트 정의 교환을 추가하였다. 추시 기간은 16개월에서 최장 71개월로 평균 45개월 이었다. 치료 결과는 골유합 기간 및 Paley 방법에 의한 방사선상 골유합 상태와 하지 기능으로 평가하였다. 결과: Ⅰ군 13예 전부와 Ⅱ군 28예 중 26예에서 감염의 치료와 골유합을 얻었다. 이단계 재건술 후 골 이식술, 골 소파술, 외고정 핀 교환과 각변형 교정술, 피부 이식 또는 근육 피판 회전술 등의 보조적 시술이 Ⅰ군은 평균 2회, Ⅱ군은 평균 6.2회 추가되었다. 평균 골유합 기간은 Ⅰ군이 19.3주이고 Ⅱ군이 23.1주로 내고정군이 더 빨랐다. 방사선상 Paley 골유합 상태는 Ⅰ군이 우수 8예, 양호 5예이었고, Ⅱ군이 우수 18예, 양호 7예, 보통 1예, 불량 2예 이었다 (p=0.492). 기능적 결과는 Ⅰ군에서 우수 6예, 양호 6예, 보통 1예 이었고, Ⅱ군에서는 우수 10예, 양호 13예, 보통 3예, 불량 2예 이었다 (p=0.267). 결론: 항생제 혼합 시멘트 정의 골수염 치료 효과가 관찰되었으며, 감염이 호전된 후 내고정 장치로 교환해 준 군이 외고정을 유지한 군에 비하여 추가 수술 횟수가 적고, 골유합 기간도 빨랐다. Purpose: To evaluate treatment results between internal na external fixation groups in two-stage reconstruction of infected nonunion of long bones using antibiotics-impregnated cement beads. Materials and Methods: In the first stage, preexisting hardwares were removed and radical debridement was done. The dead space was filled with antibiotics -impregnated cement beads and the nonunion sits was immobilized by external fixation, cast or skeletal traction. In the second stage, all cases were divided into two groups; the nonunion was fixed by internal fixation in group Ⅰ versus external fixation in group Ⅱ. The intervening period between the first and second stage was average 8.7 weeks (range, 3~23 weeks). Results: The follow-up period was average 45 months (range, 16~71 months). Infection control and bone union were achieved in all 13 cases of group Ⅰ. Infection recurred in two of 28 cases in group Ⅱ, one underwent above-knee amputation and the other case was lost in follow-up. The mean number of supportive operations including repeated curettage, augmentation and change of infected pins, angular correction, and soft tissue flap was average 2 and 6.2 times respectively in group Ⅰ and group Ⅱ. Bony union period was average 19.3 and 23.1 weeks in each group. According to Paley's classification, group Ⅰ was similar to group Ⅱ in bony and functional result (p>0.05). Conclusion: Antibiotics-impregnated cement beads provided positive effect on infection control. Internal fixation group showed less number of additional operations and earlier bony union than external fixation group.

물체-검출기 동기회전 방식의 X-선 단층영상시스템 설계 및 성능개선에 관한 연구

강성택,조형석,노병옥 제어·자동화·시스템공학회 1999 제어·자동화·시스템공학논문지 Vol.5 No.-

This paper describes my experiences in delivering a 3-year of psychological service to the Korean National Archery Team(1996-1998). The process of developing psychological skills training programs(PSTP) over a 3-year period is outlined. The contents of PSTP are explained and the importance of full cooperation from coaches, sport organization, and the ethics of the coach is discussed as well.

경골 골수정 고정술후 교합나사의 파단

박형빈,강번중,송해룡,구경회,정순택,조세현 대한골절학회 2002 대한골절학회지 Vol.15 No.4

목 적 : 경골 골절에서 골수정 고정술후 발생하는 교합나사 파단의 빈도와 발생 원인을 밝히고자한다. 대상 및 방법 : 1995년 3월부터 2000년 10월까지 골수정으로 치료하였던 경골 간부골절 82예중 내고정물 파단이 발생하거나 골유합이 이루질 때까지 추시 가능하였던 75예를 대상으로 하였다. 내고정물 파단 빈도와 위치, 골절의 양상, 술후 골절부 신연 및 골유합 이상 여부를 조사하였다. 결 과 : 교합나사 파단은 7예였고 (9.3%), 근위부 두 번째 나사의 파단이 가장 흔하였다. 교합나사으 ㅣ파단은 AO분류 B형과 C형 골절, 술후 골절부가 신연된 경우, 개발성골절, 자연유합 및 불유합의 경우 발생하였다. 결 론 : 교합나사 파단의 주된 요인은 골절부의 골과 골 접촉이 불안정하기 때문이며, 개방성 골절, 지연유합 및 불유합도 교합나사 파단의 위험인자라고 생각한다. 교합나사 파단을 예방하기 위해서는 수술시 골절부 신연을 피해야하며 골절부 골접촉이 불안정한 경우 완전 체중부하를 골유합시까지 제한하여야할 것으로 생각한다. Purpose : The aims of this study were to investigate the prevalence and the causes of crew breakage in tibia nailing. Materials and Methods : Between 1995 and 2000, eighty-two tibial diaphyseal fracture were treated with interlocking nails. The loss of follow-up was 7 cases. We retrospectively reviewed seventy-five cases. We investigated the rate and location of metal failure and evaluated the fracture pattern, the presence of distraction after nailing and union abnormality. Results : Screw breakage was identified in seven cases (9.3%) and most frequently occurred on the second proximal locking screw. Screw breakage occurred in AO type B or C type fractures, fracture site distraction after nailing, open fracture, delayed union and nonunion. Conclusion : The main cause of screw breakage is unstable bone to bone contact on the fracture site caused by comminution of distraction. The open fracture, delayed union, and nonunion also contributing factors for screw breakage. For preventing screw breakage, it is necessary to avoid fracture site distraction and delay full weight bearing in cases having unstable fracture site contact.

경관영향평가 항목선정을 위한 타당성 평가

오명성,조현주,이현택,나정화 경북대학교 농업과학기술연구소 2008 慶北大農學誌 Vol.26 No.-

This research is significant in terms of estimating the validity by setting evaluation items in view of integrating not only original beauty and visual areas but also natural ecological areas based on questionnaire. The results are as follows. 1) According to literature study, 17 items such as variety, the character of sites in terms of landscape, the beauty of landscape, visibility, and ratio of green visibility are selected. Also, 21 items such as variety of animals and plants species, size of green area, and ecological naturalness are selected m the area of landscape ecological resources. 2) As a result of questionnaire of the group of landscape experts, animals and plants ecological areas show 5.6341, the highest in importance analysis according to assessment areas. Also, as a result of importance analysis on items in each area, for example, in the area of visual resources, the item of skyline analysis is 6.0488, the highest. 3) As a result of corelation of item meaning on landscape effect assesment, for example, meaningness of psychological assessment item and landscape site item indicate 0.710, the highest coefficient correlation. 4) As critical assessment items per unit project, items such as damage minimization of original land features for project in terms of point, ratio of green visibility, variety of animals and plants species marked above 8.0 as high important medium. The project in terms of line, minimization of original land features, Preservation of worthy biotope showed high point and the character of sites in terms of landscape, minimization of original land features, the size of green area, and analysis of skyline marked above 8.5 as high importance points. On the contrary, items for climate and soil showed relatively low points.

응집제의 주입량 및 압력변화에 따른 여과특성

이성호,임택준,조준형 강원대학교 삼림과학연구소 2001 Journal of Forest Science Vol.17 No.-

제지공업은 다른 공업에 비해 용수 소비량이 많고 이에 따라 폐수의 배출량도 많은 용수 다소비 산업이다. 제지폐수의 처리는 물리적, 화학적, 처리로 1차 처리를 하고 생물학적 처리로 2차 처리를 한 후, 필요에 따라 고도처리를 행하여 재이용 하거나 방류하는 시스템으로 구성되어 있다. 물리적 처리 중 응집침전법에 의한 처리방법은 생물학적 처리의 전 단계로서 처리가 불량할 경우 생물학적 처리 시스템의 부하량이 높아져 처리율의 저하를 유발한다. 또한 가장 비용이 적게 드는 처리방법이므로 응집침전에서 많은 오염물을 제거하는 것이 비용 면에서도 유리하다고 할 수 있다. 제지공장의 폐수에는 Fiber, Filler, 그 밖의 유기용매가 포함되어 있으며, 폐수량이 많기 때문에 그 만큼의 설비자본과 운영비가 소요된다. 그러므로 폐수의 양을 줄이고 그 안에 함유된 여러 가지 물질들을 적은 비용으로 효율적으로 제거하는 방법이 필요하게 된다. 본 실험은 제지폐수를 보다 효율적으로 여과하는 방법을 찾고자 함에 있어 가압 여과시험을 채택하여 응집제의 종류 및 첨가량 그리고 압력의 변화를 주면서 여과의 특성 실험을 하였다. 폐수내의 섬유나 Filler 등은 미세하게 분산되어 콜로이드성 물질이 되는데 이것은 여과시에 여재 위에 쌓여 여과 조작을 방해한다. 여기에 응집제를 첨가하게 되면 분산된 콜로이드 입자를 응집제가 표면에 사슬처럼 붙어 안정화시킨다. 즉, 침전성과 여과성이 향상되고 SS가 떨어진다. 본실험에 사용된 응집제는 FeCl3, Alum, CaCl2, Polymer 이며, 네 가지 응집제를 0.01g, 0.03g, 0.05g 씩 첨가(폐수 100mL에 대해)하고 압력을 49, 98, 147, 196 kPa로 변화시키면서 실험을 하였다. 이와 같은 여러 변화의 실험을 통하여 각 단위 시간 별로 여과되는 여액량을 측정하여 여과 속도 및 탁도 등을 측정하였다. Compared to other industries, pulp and paper industry use a lot of water. As a result, a large amount of the waste water is discharged in the pulp and paper industry. This study was investigated to prevent the environmental pollution terribly faced with our society nowadays. In the waste water of pulp and paper there are so many things in the waste water, like fiber, filler, and other organic solvent etc. so we must remove them from our environment. This study was investigated to experiment on test of impressed filtration with the kind and quantity of coagulant and the variance of pressure. In this study, we used feds, alums, CaCl2, polymer as a coagulant and these pressure was 49, 98, 147, 196kpa. According to this study, we measured the speed of filtration and turbidity, measuring filtrated water. According to the values, we know the fact that as the consistency of coagulant and pressure were high, the filtration was good.Key words : Coagulant, wastewater, filtration, turbidity

Status and Periodic Changes of Industrial Crop Cultivation in Uzbekistan

Hyung-Jin Baek,Yuri Kim,Jeongran Lee,Kyu-Taek Cho,Chang-Yung Kim,Jae-Gyun Gwag,Mun-Sup Yoon 한국국제농업개발학회 2005 韓國國際農業開發學會誌 Vol.17 No.3

Effects of Panax ginseng extracts prepared at different steaming times on thermogenesis in rats

Cho, Hyung Taek,Kim, Jun Ho,Lee, Jin Hyup,Kim, Young Jun The Korean Society of Ginseng 2017 Journal of Ginseng Research Vol.41 No.3

Background: Panax ginseng (PG) has a long history of use in Asian medicine because of its multiple pharmacological activities. It has been considered that PG in a type of white ginseng may induce undesirable thermogenic effects, but not in a type of red ginseng. However, there is a lack of evidence about the correlation between ginsenoside and thermogenesis. Methods: We investigated the effects of PG with different ginsenoside compositions on body temperature, blood pressure, and thermogenesis-related factors in rats. Results: With increasing steaming time (0 h, 3 h, 6 h, and 9 h), the production of protopanaxadiol ginsenosides increased, whereas protopanaxatriol ginsenosides decreased in white ginseng. In both short- and long-term studies, administration of four ginseng extracts prepared at different steaming times did not induce significant changes in body temperature (skin, tail, and rectum) and blood pressure of rats compared to saline control. In addition, there were no significant differences in the molecular markers related to thermogenesis (p > 0.05), mRNA expressions of peroxisome proliferator-activated receptor-gamma coactivator-$1{\alpha}$ and uncoupling protein 1 in brown adipose tissue, as well as the serum levels of interleukin-6, inducible nitric oxide synthase, and nitrite among the treatment groups. Conclusion: These observations indicate that the potential undesirable effects of PG on body temperature could not be explained by the difference in ginsenoside composition.

Effects of Panax ginseng extracts prepared at different steaming times on thermogenesis in rats

Hyung Taek Cho,Jun Ho Kim,Jin Hyup Lee,Jeong Jun Lee,Hyun-Sun Lee,Kyung-Im Kim 한국식품영양과학회 2016 한국식품영양과학회 학술대회발표집 Vol.2016 No.10

Effects of Panax ginseng extracts prepared at different steaming times on thermogenesis in rats

Hyung Taek Cho,Jun Ho Kim,Jin Hyup Lee,Young Jun Kim 고려인삼학회 2017 Journal of Ginseng Research Vol.41 No.3

Background: Panax ginseng (PG) has a long history of use in Asian medicine because of its multiple pharmacological activities. It has been considered that PG in a type of white ginseng may induce undesirable thermogenic effects, but not in a type of red ginseng. However, there is a lack of evidence about the correlation between ginsenoside and thermogenesis. Methods: We investigated the effects of PG with different ginsenoside compositions on body temperature, blood pressure, and thermogenesis-related factors in rats. Results: With increasing steaming time (0 h, 3 h, 6 h, and 9 h), the production of protopanaxadiol ginsenosides increased, whereas protopanaxatriol ginsenosides decreased in white ginseng. In both shortand long-term studies, administration of four ginseng extracts prepared at different steaming times did not induce significant changes in body temperature (skin, tail, and rectum) and blood pressure of rats compared to saline control. In addition, there were no significant differences in the molecular markers related to thermogenesis (p > 0.05), mRNA expressions of peroxisome proliferator-activated receptorgamma coactivator-1a and uncoupling protein 1 in brown adipose tissue, as well as the serum levels of interleukin-6, inducible nitric oxide synthase, and nitrite among the treatment groups. Conclusion: These observations indicate that the potential undesirable effects of PG on body temperature could not be explained by the difference in ginsenoside composition.

Explosively Puffed Ginseng Improves Protection Against Ionizing Radiation-Induced Intestinal Injury by Inhibition of Colorectal Apoptosis and Inflammation

Hyung Taek Cho,Jun Ho Kim,Jin Hyup Lee,Jeong Jun Lee,Hyun-Sun Lee,Young Jun Kim 한국식품영양과학회 2017 한국식품영양과학회 학술대회발표집 Vol.2016 No.10