무지외반증에 대한 Ludloff 절골술의 결과

문형태,장석환,이우천,Moon, Hyung-Tae,Jang, Suk-Hwan,Lee, Woo-Chun 대한족부족관절학회 2005 대한족부족관절학회지 Vol.9 No.1

Purpose: The purpose of this study was to evaluate the outcome of Ludloff osteotomy for treatment of hallux valgus with regard to patient satisfaction and clinical and radiological results. Materials and Methods: 43 feet of 28 patients underwent Ludloff osteotomy between January 2003 and August 2003. 21 patients (32 feet) who were available for follow up for more than one year were enrolled in this study. Average follow up period was 16 months. All patients were female and the average age was 51 years ranging 28 years to 72 years. Patient satisfaction was assessed and VAS (Visual Analogue Scale) was used for subjective outcome, AOFAS (American Orthopaedic Foot and Ankle Society) score and presence of metatarsalgia were used for clinical outcome, and hallux valgus angle and intermetatarsal angle were used for radiological outcome assessment. Results: Patient satisfaction regarding cosmesis was excellent in 6 cases, good in 21 cases, fair in 4 cases and poor in 1 case. VAS was improved from preoperative 6 points to postoperative 2 points and AOFAS score was improved from preoperative 53 points to postoperative 82 points. Metatarsalgia was observed in 18 cases preoperatively and 9 cases postoperatively. HVA and IMA were 35.8 and 15.2 degrees preoperatively, 12.5 and 6.6 degrees at 3 months follow up, and 13.2 and 7.1 degrees at last follow up respectively. At the last follow up, loss of angle of correction for HVA was 0.7 degrees and for IMA was 0.5 degrees. Conclusion: Ludloff osteotomy is an appropriate surgery of moderate to severe hallux valgus.

딥러닝 기반의 차량 주행 경로와 지도 정보를 융합하는 미래 경로 예측 기술

이석환(SeokHwan Lee),김병도(ByeoungDo Kim),금동석(DongSuk Kum),최준원(Jun Won Choi) 한국자동차공학회 2019 한국자동차공학회 학술대회 및 전시회 Vol.2019 No.11

뒤꿈치 통증이 있는 족부의 방사선학적 분석

문형태,문정석,이우천,Moon, Hyung-Tae,Moon, Jeong-Seok,Lee, Woo-Chun 대한족부족관절학회 2005 대한족부족관절학회지 Vol.9 No.1

Purpose: This study is to compare the medial longitudinal arch between heel pain group and normal painless group. Materials and Methods: Heel pain group 242 feet and normal group 140 feet were evaluated through the radiographic images of standing foot-ankle lateral view. Four radiographic indices, talo-1stmetatarsal angle (TMA), calcaneal-1st metatarsal angle (CMA), calcaneal pitch angle (CPA), and arch ratio (AR), were used as well as BMI. Results: There was no difference between heel pain group and normal group in the TMA, CMA, CPA, and AR. But in the BMI, heel pain group showed $1.7\;kg/m^2$ (p=0.0002) higher than normal group. To eliminate the sexual error, male and female were evaluated separately. Male heel pain group showed 2.9 degrees more dorsiflexion (p=0.001) in the TMA, 3.1 degrees greater (p=0.007) in the CMA, 0.01 lower (p=0.028) in the AR, and $1.0\;kg/m^2$ greater (p=0.033) in the BMI than normal male group. There were no difference in the CPA. Female heel pain group showed 3.6 degree greater (p=0.035) in the CMA, and $1.9\;kg/m^2$ greater (p=0.002) in the BMI than normal female group. But other indices demonstrated no differences. Conclusion: talo-$1^{st}$ metatarsal angle, calcaneal-$1^{st}$ metatarsal angle and arch ratio were radiographic indices related with heel pain.

데드타임 보상이 적용된 PMSM 전류 제어

문형태(Hyung-Tae Moon),김건수(Kun-Soo Kim),김현수(Hyun-soo Kim),이나영(Na-young Lee),윤명중(Myung-Joon Yoon) 전력전자학회 2000 전력전자학술대회 논문집 Vol.2000 No.11

In this paper, a new current controller with dead time compensation for small time constant PMSM is proposed. Precise analysis on voltage 야stortion by dead time and device characteristics is presented. Simulation results are presented to demonstrate the validity of the proposed method

슬괵건 채취를 위한 변형된 방식 -수술 수기-

김진구,문형태,김지영,Kim Jin-Goo,Moon Hyung-Tae,Kim Ji-Yeong 대한정형외과스포츠의학회 2004 대한정형외과스포츠의학회지 Vol.3 No.1

The hamstring tendons are popular for autografts in a variety of reconstructive procedures. The hamstring autografts are used widely for its potential advantages over the patella bone-tendon-bone(BTB) autograft, including lower graft site morbidity and easier harvesting technique. However, the use of hamstrings has potential disadvantages such as the damage of infrapatellar branches of the saphenous nerve, premature tendon amputation, and tendon split following inadequate hamstring identifications. In our studies, we used modified technique for harvesting the hamstring to decrease potential disadvantages. Reflected hamstring flap method seems to be easy and safe in avoiding nerve damage and tendon splitting. We recommend the reflected hamstring flap method for harvesting hamstring tendons. 슬괵건은 최근 여러 가지 재건술에 흔히 사용되는 자가 건으로 자가 슬개 건-골에 비해 건 채취 부위의 낮은 이환율과 쉬운 술기 등의 이점으로 그 사용이 늘어나고 있다. 그러나, 건의 부정확한 분리에 의해 두렁신경의 슬개 하분지 손상, 조기 건 절단, 건 균열 등의 합병증이 알려지고 있어 본 교실에서는 이러한 합병증을 줄이고자 변형된 방식의 슬괵건 채취 방법을 사용하였다. 슬괵건의 거위발 건을 뒤집는 술식으로 신경 손상과 건 균열 등의 합병증이 발생하지 않았다. 변형된 자가 슬괵건 채취 방식은 고식적 방식에 비해 각각의 건의 확인과 분리가 용이하고 봉공근의 보존이 가능하며 신경 손상을 방지할 수 있어 유용한 방법으로 사료된다.

남해 안골만 잘피밭 어류 종조성의 계절변동

이태원(Tae Won Lee),문형태(Hyung Tae Moon),황학빈(Hak Bin Hwang),허성회(Sung Hoi Huh),김대지(Dae Ji Kim) 한국수산과학회 2000 한국수산과학회지 Vol.33 No.5

남해안에 위치한 안골만 잘피밭에서 1998년 4월부터 1999년 3월까지 월별로 beam trawl을 이용하여 어류를 채집하여 계절에 따른 종조성 변화를 분석하였다. 조사기간 동안 39종 2,065개체, 8,930.0g의 어류가 채집되었으며, 소형 주거종과 희유종의 유어들이 주를 이루었다. 출현한 어류 중 주등치 (Leiognathus nuchalis), 베도라치 (Pholis nebulosa), 실고기 (Syngnathus schlegeli)와 볼락 (Sebastes inermis)이 전체 개체수의 60%를 차지하였다. 출현종수와 생체량은 수온이 낮은 12월에서 3월 사이에는 낮았으며, 잘피가 성장하는 4월과 5월에는 주거종과 볼락의 유어들이 대량 채집되어 생체량이 높았다. 6월과 7월에 산란을 마친 주거종이 양적으로 줄어 생체량이 줄었으나, 8월에는 봄에 부화된 경제성이 높은 어종의 유어들이 가입되어 생체량이 증가하였다. 그 이후 잘피의 현존량이 감소하면서 어류의 생체량도 줄었고, 겨울에는 소수 개체만이 채집되었다. 종간 유사성을 집괴 분석한 결과 4개의 무리로 구분되었다. 온수기에는 주거종인 베도라치, 실고기와 주둥치가 우점하였고, 냉수기에는 살망둑 (Chaenogobius heptacanthus)과 양태 (Platycephalus indicus)가 출현하였다. 잘피가 성장하는 3∼6월에는 주거종인 쥐노래미의 유어, 잘피의 현존량이 높은 4∼7월 사이에는 가시망둑 (Pseudoblennius cottoides), 돌팍망둑 (Pseudoblennius percoides)과 볼락의 유어, 그리고 잘피가 시들어가는 8∼9월에는 쥐치 (Stephanolepis cirrhifer)와 해마 (Hippocamoys coronatus) 의 유어들이 출현하였다. 주성분 분석 결과, 잘피밭 어류의 종조성은 수온과 잘피의 현존량에 따라 뚜렷한 계절 변화를 보였다. Seasonal variation in species composition of fishes in the eelgrass bed in Angol Bay of the southern coast of Korea was determined using monthly samples by a beam trawl from April 1998 to March 1999. A total of 39 species, 2,065 individuals and 8,930 g of fishes were collected during the study period. The fish were composed of the small-sized resident species and the juveniles of Leiognathus nuchalis, Pholis nebulosa, Syngnathus schlegeli and Sebastes inermis predominated in abundance, accounting for 60% of total number of individuals. The number of species and biomass were low from December to March when the water temperature was low. The biomass increased by the catch of a large number of L. nuchalis and S. inermis in April and May when the eelgrass grew fast. The fish numbers decreased in June and July when the adults of the resident species declined after the spawning. A large number of juveniles which had released in spring occurred in August. The biomass of fish decreased from September, and a few number of fish were collected in winter. Species were grouped into four by cluster analysis: the warm season group including P. nebulosa, S. schlegeli and L. nuchalis, the cold season group including Chaenogobius heptacanthus and Platycephalus indicus, the group of fish species occurred during the growing season of eelgrass such as P. cottoides, S. inermis and P. percoides, and the group of fish species occurred during decaying season of eelgrass such as S. cirrhifer and H. coronatus. Principal component analysis indicated that seasonal variation in species composition was determined by the water temperature and standing crops of eelgrass.

방조제 건설 중인 2001-2002년 새만금 하구역 어류 종조성의 계절 변동

이태원 ( Tae Won Lee ),문형태 ( Hyung Tae Moon ),김광천 ( Gwang Cheon Kim ) 한국수산과학회 2003 한국수산과학회지 Vol.36 No.3

남해안 진해 용원 천해역 어류의 계절에 따른 종조성 변화

이태원(Tae Won Lee),문형태(Hyung Tae Moon),허성회(Sung Hoi Huh) 한국수산과학회 2000 한국수산과학회지 Vol.33 No.3

Seasonal variation in species composition and abundance of shallow water fish off Yongwon, Jinhae in the southern coast of Korea was determined by the analysis of monthly samples collected by a beach seine from January to December, 1998. Among 34 species identified, the resident species such as Favonigobius gymnauchen, Chaenogobius laevis, Pholis nebulosa and juvenile Hyporhamphus intermedius were predominated in abundance. The temporal species such as Sardinella zunasi, Leiognathus nuchalis and Takifugu niphobles were collected between April and September. Mean abundance (322 individuals/1000 ㎡ or 806 g/1000 ㎡) was higher than that in the shallow sand surf zone of Teachon, but lower than that in the shallow mud area of Chonsu Bay in the western coast of Korea. A large number of H. intermedius were collected in cold months between November and January. The dominant resident species began to be collected from February, and the number of species and biomass were increased until July. A small number of temporal species were collected and subsequently the abundance was low from August to October when high abundance was expected as in the other shallow waters by recruitment of a large number of juveniles of temporal species. The low abundance in these warm months seemed to be related to the water quality by weak water circulation in this shallow mud area.

상호작용적인 문화 교육을 위해 가상현실을 이용한 고구려 벽화 복원 연구

조용주,문형태,Cho Yong-Joo,Moon Hyung-Tae 한국정보통신학회 2006 한국정보통신학회논문지 Vol.10 No.8

Digital Koguryo is a virtual reality reconstruction of the Koguryo mural tumulus, Anak No. 3, designed for an interactive educational gaming and learning environment. Digital Koguryo aims at not only developing a digital reconstruction of cultural heritage but also helping young students learn the living style and the custom of Koguryo Kingdom while playing the game environment. This paper describes the digital restoration process of Koguryo mural paintings and 3D structure, as well as the construction of educational virtual environment designed to get more user's interests. It then discusses a few design issues learned from the development and the public demonstration. Finally, it will present the future research directions to improve the users' immersion. 디지털 고구려는 안악 3호분 고구려 고분을사용자와 상호작용을 높이기 위해 게임요소를 가미하여 제작한 가상현실 환경이다. 디지털 고구려는 디지털 기술로 문화 유산 복원만이 아니라 일반 대중에게 특히 초등학생 어린이들에게 고구려인의 생활상과 문화를 이해하고 역사 학습을 도와주는데 중점을 두었다. 본 논문에서는 고구려의 고분과 벽화들을 복원하는 과정과 교육용 환경으로서 사용자들의 관심을 높이기 위해 게임의 형태를 취한 가상현실 환경 제작 과정, 그리고 개발과 시연을 통해 나타났던 개선점들과 몰입감을 증대시키기 위한 향후 연구방향에 대해 논한다.

시화호 수질 악화에 따른 시화호와 주변 해역 어류의 종조성 변화

이태원,문형태,허성회,Lee, Tae-Won,Moon, Hyung-Tae,Huh, Sung-Hoi 한국해양학회 1997 바다 Vol.2 No.2

Changes of fish species composition were analyzed using seasonal samples collected from Lake Shihwa and adjacent coastal water from October 1995 to August 1996. Pelagic clupeids, Cynoglossus joyneri and Johnius belengerii predominated in abundance in the adjacent coastal water. In the lake, clupeids, gobies and freshwater Carassius carassius were collected in autumn. The clupeids, unable to overwinter in the open water, disappeared after winter. The gobies and C. carassius were also disappeared in spring except a few number of Acanthogobius hasta. A large number of Tridentiger trigonocephalus and Eleotris oxycephala were collected in summer, supposed to move into the lake during the exchange of water in lake and sea water. However, they were all died in the middle of August. The concentration of ammonium-nitrogen was higher than 2 mg/l, which was higher than 50% lethal concentraton in other fishes. Increase in temperature and pH in spring may elevate the toxicity of ammonium to fish. We discussed the effect of the other factors of the polluted water in the lake on the disappearance of fish. 시화호가 건설 된 후인 1995년 10월에서 1996년 8월 사이 시화호 내부와 외부에서 계절 별로 어류를 채집하여, 출현종의 조성 변화를 분석하고 내부의 수질이 어류에 미치는 영향을 고찰하였다. 호수 외부에서는 청어목 어류 및 참서대와 민태가 우점하여 인접 해역과 유사한 경향을 보였다. 호수 내에서는 가을에 연안성 부어류, 망둑어류 및 민불어류인 붕어가 채집되었으나, 겨울이 지난 후 외해에서 월동하여야 하는 부어류들은 채집되지 않았고, 망둑어류와 붕어도 숫적으로 감소하였다. 봄이 되어 소수 풀망둑을 제외한 어류는 채집되지 않았고, 여름에는 해수와 호수물 교환 과정에서 들어 온 두둘망둑과 구굴무치가 대량 출현하였으나 8월 중순 폐사하였다. 1996년 3월 이후 암모늄 농도는 다른 어류에서 관찰된 반치사농도보다 높았으며, 수온과 pH의 상승으로 암모니아의 어류에 대한 독성이 강하여지고 다른 요인들과 복합적으로 작용하여 어류들이 폐사한 것으로 보인다.