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인공적으로 탈수를 일으킨 반추류에서 몇가지 수액의 경구투여 효과
강동묵,양일석,이인세,Kang, Dong-mook,Yang, Il-suk,Lee, In-se 대한수의학회 1990 大韓獸醫學會誌 Vol.30 No.1
Effects of oral administration of electrolyte solutions were studied in experimentally dehydrated adult sheep. By the latin square method five ruminal fistulated sheep were examined and dehydrated by deprivation of feed and water for 72 hours. Tap water, physiological saline, 0.45% NaCl+120 mM/L glucose and 0.9% NaCl+1% propylene glycol solution were orally administrated after dehydration, respectively. Rehydration effect and modification of the rumen function were compared. 1. After 72 hours of deprivation of feed and water, sheep were hypertonic dehydrated and blood acid-base parameters were not significantly changed. And there was marked increase in ruminal pH and decrease in ruminal total volatile fatty acid(VFA) concentration. 2. After the fluids administration the changes in blood acid-base parameters were not significant in all groups. 3. Although glucose fermentation in the rumen was observed, 0.45% NaCl+120 mM/L glucose was more effective in rehydration than physiological saline and tap water. But it was difficult to know the rehydration effect of 0.9% NaCl+1% propylene glycol solution exactly because of excessive increase in plasma osmolality. 4. After refeeding, total concentration and proportions of ruminal volatile fatty acid(VFA) were not significantly different among groups and recovered to normal concentration but not in proportions after 2 days in all groups. 5. In vitro cultured ruminal protozoa were susceptible to the decrease of the pH and osmolality.
연골결손에 대한 자가 골연골 이식 수술 후 이차 관절경 소견
최남홍,곽호윤,송백용,배상욱,이인묵,김우진,Choi Nam-Hong,Kwak Ho-Yoon,Song Baek-Yong,Bae Sang-Wook,Lee In-Mook,Kim Woo-Jin 대한관절경학회 2001 대한관절경학회지 Vol.5 No.2
목적 : 이번 전향적 연구의 목적은 슬관절의 연골 결손 환자의 치료로서 자가 골연골 이식술을 시행한 후 이차 관절경을 시행하여 관찰하는 것이다. 재료 및 방법 : 슬관절의 연골 결손의 치료로 자가 골연골 이식술이 시행된 40명의 환자 중 14면에서 이차 관절경이 시행되었다. 환자들의 연령은 $17\~59$세로, 평균 연령은 34세였다. 수술 전 14명 중 11명에게서 자기 공명영상을 시행하여 9면에서 연골 결손이 관찰되었으나 관절경술상 전례에서 연골결손을 확인하였다. 연골 결손의 부위는 대퇴골 내과가 7명, 활차 부위가 4명, 대퇴골 외과가 3명이었다. 연골 결손의 크기는 평균 $13\times10mm$, 최소 $5\times10mm$, 최대 $22\times20mm$이었다. 사용된 골연골의 갯수는 1개를 사용한 경우 8명, 2개가 3명, 3개가 2명, 5개가 1명이었다. 결과 : 수술 후 추적 관찰은 평균 21개월이었다. 대부분의 경우 수술 후 6개월에 이차 관절경을 시행하였다. 시행한 환자의 $86\%$에서 이식된 연골의 경도가 주변의 연골과 같았으며, $93\%$의 환자에서 주변 연골과 잘 융화된 것을 관찰할 수 있었다. 결론 : 자가 골연골 이식술을 자가 골연골 이식술은 슬관절의 연골결손의 치료의 한 방법으로 사용될 수 있을 것으로 생각된다. Purpose : The purpose of this prospective study was to evaluate second look arthroscopic finding after osteochondral autograft transfer(OAT) for the treatment of the chondral defect of the knee. Materials & Methods : Fourteen out of forty cases underwent second look arthroscopy after the OAT for the treatment of the chondral defect of the knee. The average age of patients was 34 years. Preoperatively, magnetic resonance imaging was performed in eleven cases and chondral defect was confirmed in nine cases. The site of the chondral defect located at medial femoral condyle at seven, trochlea in four, and lateral fomoral condyle in three cases. The average size of the condral defect was $13\times10mm$, maximum $22\times20mm$. The number of graft was one in eight, two in three, three in two, and five in one case. The average follow-up period was twenty-one months. Second look arthroscopy was performed at six months in almost cases. Results : After the OAT, $86\%$ of cases showed that the consistency of grafted cartilage was firm and $93\%$ of cases showed that grafted cartilage was well incorporated with surrounding cartilage. Conclusion : The results of this study suggest that OAT can be one of treatment modality in the chondral defect of the knee.
고령의 당뇨병성 족부 궤양의 전외측 대퇴 천공지 유리 피판술을 이용한 치료
김재영,이인묵,나상은,Kim, J-Young,Lee, In-Mook,Na, Sang-Eun 대한족부족관절학회 2008 대한족부족관절학회지 Vol.12 No.1
Purpose: To evaluate the results of anterolateral thigh perforator free flap for reconstruction of foot and ankle in old diabetic patients. Materials and Methods: Fifteen diabetic foot ulcer patients over the age of 55 were operated with anterolateral thigh perforator free flap. Hematological, hemodynamic, diabetic, bacteriologic and radiologic tests were checked with examination of blood vessel state in both the donor site and the recipient site. After surgery, serial check-up was performed at 6 week, 6 month, and 1 year postoperatively on the survival of transplantation tissue, condition of foot, and condition of walking. Results: There are one case of transplantation failure and four cases of partial tissue-necrosis. Delayed wound-healing was observed both recipient and donor tissue sites. At the final follow up, three cases of small ulcer were found at junction of flap and recipient tissue in plantar area. Fourteen out of fifteen patients could walk without any brace or walking aids. Conclusion: Reconstruction of foot and ankle region in old diabetic patients with the anterolateral thigh perforator free flap is a useful method which can prevent the amputation of foot and ankle.
이동통신 자료를 활용한 거시적 교통사고 예측 모형 개발
곽호찬 ( Ho-chan Kwak ),송지영 ( Ji Young Song ),이인묵 ( In Mook Lee ),이준 ( Jun Lee ) 한국안전학회(구 한국산업안전학회) 2018 한국안전학회지 Vol.33 No.4
Macroscopic accident analyses have been conducted to incorporate transportation safety into long-term transportation planning. In macro-level accident prediction model, exposure variable(e.g. a settled population) have been used as fundamental explanatory variable under the concept that each trip will be subjected to a probable risk of accident. However, a settled population may be embedded error by exclusion of active population concept. The objective of this research study is to develop macro-level accident prediction model using floating population variable(concept of including a settled population and active population) collected from mobile phone data. The concept of accident prediction models is introduced utilizing exposure variable as explanatory variable in a generalized linear regression with assumption of a negative binomial error structure. The goodness of fit of model using floating population variable is compared with that of the each models using population and the number of household variables. Also, log transformation models are additionally developed to improve the goodness of fit. The results show that the log transformation model using floating population variable is useful for capturing the relationships between accident and exposure variable and generally perform better than the models using other existing exposure variables. The developed model using floating population variable can be used to guide transportation safety policy decision makers to allocate resources more efficiently for the regions(or zones) with higher risk and improve urban transportation safety in transportation planning step.
김경태(Kyoung Tae Kim),민재홍(Jae Hong Min),이인묵(In Mook Lee) 한국철도학회 2014 한국철도학회 학술발표대회논문집 Vol.2014 No.10
수도권의 대중교통을 이용하는 승객들은 거의 대부분이 교통카드를 사용하고 있다. 수도권의 대중교통요금이 통합거리비례요금제로 운영되고 있기 때문에 정확한 승하차 정보가 필요하다. 그러나 버스 이용객들은 하차역에서 내릴 때 교통카드를 태그하는 것이 아니라 그 이전에 태그하는 현상이 많이 발생하고 있다. 본 연구에서는 교통카드 데이터를 활용하여 버스 승객들이 비정상적으로 태그하는 행태를 분석하고자 하였으며, 본 연구에서 설정한 기준에 따르면 약 40.3%에 해당하는 승객이 사전에 태그하는 것으로 분석되었다. 따라서 교통카드 데이터를 활용한 대중교통 이용객들의 평균환승거리 산정 시에는 이러한 요인을 충분히 검토하여야 한다. Transportation cards are widely used to travel by public transit in the Seoul metropolitan area. And, passengers have no resistance to transfer from one mode to the other mode because the public transportation fare is only proportional to the travel distance. Passengers have to tag when they get off the bus, but many passengers tag farther in advance. In this study, we analyzed the abnormal tag behavior of bus passengers by utilizing transport card data. It is analyzed that the ratio of tags in advance is equivalent to about 40.3% according to the suggested criteria. When you analyze average transfer distance or transfer behavior using transportation card data these factors should be considered sufficiently.