선천성 고관절탈구의 치료 결과에 대한 연구

羅相淵,尹承鎬 충남대학교 의과대학 지역사회의학연구소 1985 충남의대잡지 Vol.12 No.1

In the management of the congenital dislocation of the hip, early diagnosis and treatment is far most important and the key point for obtaining good results. Even in the older age group, results have been improved by nearly reported methods. But until now, there is no one fully accepted guide for the treatment of the congenital dislocation of the hip. Authors studies 25 cases in 24 patients with congenital dislocation of the hip at the Department of Orthopedic Surgery, Chungnam National University Hospital during a 6 year period from January, 1976 until December, 1982. The results were as follows : 1. In the group of patients before 1 1/2 year of age, closed reduction were done, with 85.7%, and 100% excellent and good results respectively (group 1). 2. In the group of patients treated between 1 1/2 and 3 years of age, closed reduction, open reduction, and Salter's innominate osteotomy with open reduction were done, with 50.0%, 66.7% and 100% excellent and good results respectively (group 2). 3. In the group of patients treated between 3 and 6 years, open reduction, and Salter's innominate osteotomy with open reduction were done, with 50.0% and 66.7% excellent and good results respectvely (group 3). 4. In the patients treated by the method of closed reduction, in the group 1, and the group 2 of age, with 85.7%, 50.0% excellent and good results respectively. In the patients treated by method of open dreuction, in the group 1, and the group 2, and the group 3 of age were done, 100%, 66.7%, 50.0% excellent and good results respectively. In the patients treated by method of Salter's innominate osteotomy with open reduction, in the group 2 and the group 3 of age were done, with 100%, and 66.7% of age excellent and good results respectively. The younger age of patients in this study, the better results of various treatments were noted. 5. We correlated the incidence of femoral head necrosis with the `hip station' just before reduction according to Gage and Winter's classification. Four of the 5 hip in minus-one station developed necrosis (80.0%), 3 of 9 hips in zero station had necrosis (33.3%), and only 2 of the 11 hip in plus-one station had necrosis (17.2%). Femoral head necrosis was severe in all 4 hips with necrosis in miuns-one station. Of the 3 hips with necrosis in zero station, 2 had severe necrosis and one had mild necrosis. Of the 2 hips with necrosis in plus-one station, 1 had severe necrosis and one had mild necrosis. None of the patients with femoral head necrosis had a perfect anatomical result. 6. The incidence of femoral head necrosis by the type of reduction, closed reduction, open reduction, and Salter's innominate osteotomy with open reduction were done with 45.4%, 33.3% and 20.2% results respectively. There is in agreement with reports of a generally lower incidence of avascular necrosis after open reduction. 7. The patients immobilized in the Lorenz position had highest incidence of avascular necrosis and there was a greatly reduced. incidence if patients was immobilized in the Lange or human position. 8. Redislocation of the femoral head occured only in 2 cases of our patients. One case immobilized in the Lange position, the other immobilized in the Lorenz position was noted. 9. In the older age group (between 8 and 14 years), 2 cases of Chiari osteotomy, 1 case of Klisic operation, only one case treated Chiari osteotomy achieved good result.

온도; pH, 염분 내성 및 충격이 개불, Urechis unicinctus 유생에 미치는 영향

최상덕,김호진,라성주,정형택,윤호섭,신종암,이원교 國立 麗水大學校 環境問題硏究所 1999 環境硏究論文集 Vol.2 No.-

The effect of different temperature, salinity and pH on survival rate of Urechis unicinctus's swimming embryo was examined to develop the method for the efficient seed production. In addition to, this study was designed to investigate the possibility of pollutant marker diagnosis of marine pollutions by the change in different temperature, salinity and pH. Treatment was carried out whit different temperature (5˚C, 10˚C, 17˚C, 20˚C, 25˚C,), salinity(0‰, 10‰, 20‰, 30‰, 34‰, 40‰) and pH(4, 6, 7.2, 8.2, 9.2, 10). All the swimming embryo of the temperature experiment was survived within all experiment section, but the others experiment were not. At the temperature-shock and tolerance experiment ranging from 5˚C to 25˚C the survival rate was occurred: 75%, 95%, 100%, 100%, 50%, at the ph-Shock experiment ranging from 4 to 10, the survival rate was occurred: 0%, 50%, 85%, 100%, 60%, 0%, at the pH-tolerance experiment ranging 4 to 10 the survival rate was occurred : 0%, 75% 90%, 100%, 80%, 0%, and at the salinity-shock experiment ranging from 0% to 40% the survival rate was occurred : 0% 10% 90% 95% 100% 0% , at the salinity-tolerance experiment ranging from 0% to 40% , the survival rate was occurred : 0% 0% 90% 100% 100% 0%. These results suggest, that the survival rate of larvae of Urechis unicinctus was the highest at 17˚C, 34%. pH8.2 and this Urechis unicinctus could be live at the zone of euryceious and zone of euryhalines

대퇴골 경부골절과 SINGH 지수와의 연관성에 대한 임상적 고찰

윤승호,안상로,나상연,정태성 충남대학교 의과대학 지역사회의학연구소 1986 충남의대잡지 Vol.13 No.1

The Singh index have been used widly for measuring degree of osteoporosis which was the important cause of the femoral neck fracture because of the adventage as noninvasive, simple, good reproducible and index of general osteoporosis. The purpose of this article is to study the clinical significance of the Singh index. For the this purpose, the fractured groups of 71 patients older than 45 years of age with femoral neck fracture who were admitted in department of orthopedic surgery, Chungnam National University Hospital from March, 1980 to Feb., 1985 in contrast to control group without fracture were measured Singh index, analysed the relationship between Singh index and patient's age, type of femoral neck fracture and degree of trauma. Following results were obtained. 1. The average age is 66 years old in fractured group and is 60.16 years old in control group. The average Singh index of fractured group is 3.23 and is 4.27 in control group. There is a statistically significant difference between fractured and control group by 1.04 (p<0.05). 2. The average Singh index below 54 years old is 4.933, the prevalence of definite osteoporosis (Grade Ⅰ, Ⅱ) is 6.7%, but the average Singh index above 75 years old is 2.32, the prevalence of definite osteoposis was 52%. 3. The average Singh index of the intracapsular and extracapsular fracture of femoral neck fracture is 3.47 and 3.05. There is no statistically significant difference (p<0.1). 4. The average Singh index of the Mild trauma group and Severe trauma group is each 2.5 and 4.28. There is statistically significant difference (p<0.01). 5. Statistically the prevalence of Severe trauma in men(60%) is higher than in women(22%).

감성돔, Acanthopagrus schlegeli의 종묘생산 및 성분화에 미치는 영향

한종석,김용구,라성주,윤호섭,이원교,김정,최상덕 國立 麗水大學校 環境問題硏究所 2002 環境硏究論文集 Vol.5 No.-

This study was carried out to produce the seeding of the larvae and juvenile of black sea bream, Acanthopagrus schlegeli in terms of artificial hatching, feeding behavior and growth rate in each factor. Total length of black sea bream larvae hatched was 2.57±0.35mm and after 50 days, total length was 22.08±3.74mm, 49.7% in survival rate. This research was conduced to confirm the effect of tributyltin and 2,4-dinitrophenol on the sex differentiation in Black Sea bream, Acanthopagrus schlegeli. Fish were reared of oral administration of tributyltin at 0.05, 0.5, 5㎍/g and 2,4-dinitrophenol at nominak concentration of 0.05, 0.5, 5, 50㎍/g diet from 156 days to 185 days after hatching. In the process of the differentiation until 156 days after hatching, gonads were composed testis. In contrast, 185 days after hatching, testis were composed of a number of spermatogonia and sperm duct. The female in the control in which sex differentiation of Acanthopagrus schlegeil was normally conducted was 100%. The experimental unit of estradiol-17β, it was 100% in 0.05㎍/g diet concentration, which was similar to the sex ratio of the control. And it was 100% in 0.5㎍/g diet concentration. In each experimental unit with 5, 50㎍/g diet concentrations, every individuals of them differentiated to males. About the experimental unit of tributyltin, the females were 100%, 100%, 100%, 100% and 100% in 0.05㎍/g, 0.5,㎍/g, 5㎍/g and 50㎍/g diet concentrations, respectively. About the experimental unit of 2,4-dinitrophenol, the males were 100% tn 0.05, 0.5, 5, 50㎍/g diet concentrations, respectively.

가막만 패류양식장의 수질 및 저질특성

최철웅,문성용,윤호섭,라성주,한종석,최상덕,이우범 國立 麗水大學校 環境問題硏究所 2002 環境硏究論文集 Vol.5 No.-

This study was performed to characterize the seasonal fluctuation of water quality and sediment environment from April, 2001 to November, 2001 in Gamak bay. Which was a productive area, but recently its fisheries conditional have been deteriorated because of increasing waste-water from municipal area, industry and autochthonous pollution by farm industry. In the survey of seawater quality, DO and COD concentrations were lowest in bottom layer at summer, but DIN and DIP contents were higher than those in surface layer. Eutrophication indices mean that eutrophication area move from south to north entrance via northern-west inner area with seasonal change from summer to autumn. In the survey of sediment environment, ignition loss(IL), chemical oxygen demand(COD), DIN and Dip were in the range of 3.8~15.7%, 10.3~60.6mg/g-dry, 5.053~1.810mg/ℓ and 0.065~0.324mg/ℓ , respectively. COD in sediment were highest at winter and spring. And, they were higher than sediment standard in the south inner area, which mean heavily polluted conditions with organic constituents.

천추 갈색종양(Brown tumor)으로 발현된 부갑상선 기능항진증 1예

홍우정,구본정,이재민,한상우,이효진,나소영,노흥규,김영건,송민호 충남대학교 의학연구소 2003 충남의대잡지 Vol.30 No.2

부갑상선 기능항진증에 의한 골병변으로 갈색종양이 있다. 갈색종양은 주로 장골을 침범하고 척추골에서의 발생은 매우 드물다. 국내의 보고에서 갈색종양의 장골 침범은 있었으나, 척추골에서의 발생은 보고된바 없다 .저자들은 부갑상선 기능항진증으로 인하여 척추골의 천추에 발생된 갈색종양 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. The bony involvement in primary hyperparathyroidism present as browm tumor or osteitis fibrosa cystica and lead to pathologic fracture. Brown tumor commonly involve long bone such as femur, tibia, fibula, humerus, and radius. Brown tumor of axial skeleton is a rare entity. Previously reported case that involve axial skeleton still not present. We report a 47-year-old male patient that he has a hyperparathyroidism presenting as brown tumor involving sacrum.

S-287 Serum Fibroblast Growth Factor 21 is a Predictable Marker of Coronary Artery Disease i n Type 2 DM

( Ha-young Choi ),( Hyeok-gyu Lee ),( A-ra Cho ),( Sang-ho Park ),( Seung-woon Rha2 ) 대한내과학회 2016 대한내과학회 추계학술대회 Vol.2016 No.1

Introduction: Obesity, metabolic syndrome and diabetes mellitus are risk factor of coronary artery disease (CAD). Fibroblast growth factor 21 (FGF21) is secreted primarily from liver that exerts potent anti-diabetic and lipid lowering effects in animal models of obesity and type 2 diabetes mellitus. In recent studies showed FGF21 has similar effects in human subjects and also related with obesity and metabolic syndrome. However, the relationship between serum FGF21 level and CAD is not yet unknown. Objective: This study aimed to investigate the relationship among serum FGF21 levels, various cardiometabolic parameters and CAD in type 2 diabetic patients. Methods: In a total of 168 Korean adults with diabetes mellitus, in whom coronary angiogram were performed and classified into CAD group (n=99) and non-CAD group (n=69). Significant coronary artery stenosis was defiened as a coronary angiography finding of more than 50% stenosis in 1 ≥ coronary arteries. Fasting serum FGF21 level were measured using ELISA. Results: Serum mean FGF21 level in type 2 diabetes mellitus with CAD showed lower than in type 2 diabetes mellitus without CAD (1.10±0.22 pg/mL vs. 1.27±0.16 pg/mL, p<0.05). Conclusions: The Result suggest that fasting serum FGF21 levels might be a predictive marker of coronary artery diseases in Korean patients with type 2 diabetes mellitus

Performance Variation According to Device Structure and the Source/Drain Metal Electrode of a-IGZO TFTs

Sang Ho Rha,Jisim Jung,Yoonsoo Jung,Yoon Jang Chung,Un Ki Kim,Eun Suk Hwang,Byoung Keon Park,Tae Joo Park,Jung-Hae Choi,Cheol Seong Hwang IEEE 2012 IEEE transactions on electron devices Vol.59 No.12

<P>The transmission-line method (TLM) was adopted to clarify the causes of device performance variation according to the source/drain metal electrode and device structure of a thin-film transistor using an amorphous indium-gallium-zinc-oxide channel. Using the TLM, the channel characteristics independent of contact resistance were extracted for the two different contact metals, i.e., Ti and Mo. Based on these results, the mobility characteristics were compared in terms of device scaling and contact structure in the source/drain overlap region. In addition, the transport characteristics according to the contact structure of the source/drain metal electrode were investigated in detail and reproduced using the simulation model.</P>

The Electrical Properties of Asymmetric Schottky Contact Thin-Film Transistors with Amorphous-<tex> $\hbox{In}_{2}\hbox{Ga}_{2}\hbox{ZnO}_{7}$</tex>

Sang Ho Rha,Un Ki Kim,Jisim Jung,Hyo Kyeom Kim,Yoon Soo Jung,Eun Suk Hwang,Yoon Jang Chung,Mijung Lee,Jung-Hae Choi,Cheol Seong Hwang IEEE 2013 IEEE transactions on electron devices Vol.60 No.3

<P>Asymmetric Schottky contact thin-film-transistors (ASC-TFTs) with an amorphous- In<SUB>2</SUB>Ga<SUB>2</SUB>ZnO<SUB>7</SUB> channel were fabricated, and their operation characteristics were examined. Ti, Ni, and Pt were evaluated as source/drain metal, and the variations in the device performance were analyzed in terms of energy level and bias polarity, which were carefully simulated to understand the influence of the contact properties on the device performance. The contact nature largely influenced the distribution of potential under the given gate and drain biases, as well as the accompanying carrier accumulation layer and current path formation. Schottky-type contact induced conduction path formation even on the back surface of the channel when drain voltage was high even with sufficiently high gate bias being applied. Based on these results, by applying different metal for each source and drain metal, ASC-TFTs integrating TFTs and Schottky diodes were fabricated, which showed a rectification ratio of drain current higher than 10<SUP>8</SUP> according to the bias direction. In addition, the transfer and output characteristics of ASC-TFTs were evaluated for various operation regimes, and the roles of the Schottky junction in device operation were studied in detail.</P>

서해 무안만에 서식하는 대형저서동물의 하계 공간분포

라성주(Sung Ju RHA),박일웅(Il Woong PARK),김윤설(Yoon Seol KIM),이성훈(Sung Hun LEE),황재호(Jae Ho HWANG),윤호섭(Ho Sub YOON),김정(Jung KIM Sang),최상덕(Duk CHOI) 전남대학교 수산과학연구소 2009 수산과학연구소논문집 Vol.18 No.1

The macrobenthic faunal community of Muan Bay comprised 34 species and showed the overall mean density of 125.49 inds.m². Ploychaetes were the most important component of the macrofaunal community in species richness and abundance. The dominant species in abundance were a polychaete(Scoloplos armiger(13.8%)) and a mussel(Ruditapes philippinarum(11.80%)). Cluster analysis showed that the benthic community could be classified into three station groups A, B and C. Group A, located from the Aphae Island to Bok-gil pier and has dominant species including bivalves(Ruditapes philippinarum and Musculista senhousia), polychaetes(Glycera chirori and Nephtys caeca). Group C, located at the Topmeori Beach to near Hyogi Island, has dominant species including one echinoderm(Protandyra bidentata), four polychaetes(Scoloplos armiger, Nephtys ciliata, Lepidonotus helotypus and Lumbrineris heteropoda). Group B, between Aphae Island and Hyogi Island, has dominant species including a bivalve Musculista senhousia predominated.