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원위 경골 골절에서 전외측 잠김 금속판을 사용한 전외측 최소 침습적 금속판 고정술
서동환,이환희,한영훈,정재중,Suh, Dongwhan,Lee, Hwan Hee,Han, Young Hoon,Jeong, Jae Jung 대한족부족관절학회 2020 대한족부족관절학회지 Vol.24 No.1
Purpose: Anterolateral minimally invasive plate osteosynthesis (MIPO) was performed to treat patients with distal tibial fractures associated with open fractures or extensive soft tissue injuries, which is limited medial MIPO. The treatment results of the anterolateral MIPO technique were evaluated and analyzed. Materials and Methods: Seventeen patients with distal tibial fractures associated with an open fracture or large bullae formation on the distal tibia medial side were treated with anterolateral MIPO using anterolateral locking plates. Within 24 hours of visiting the emergency room, external fixation was applied, and the medial side wound was managed. After damage control, the anterolateral locking plate was applied using an anterolateral MIPO technique. The union time, nonunion, or malunion were evaluated with regular postoperative radiographs. The ankle range of motion, operative time, blood loss, Iowa score, and wound complications were investigated. Results: Radiological evidence of bony union was obtained in all cases. The mean time to union was 16.7 weeks (12~25 weeks). The mean operation time was 44.0 minutes. Regarding the ankle range of motion, the mean dorsiflexion was 15°, and the mean plantarflexion was 35°. Satisfactory results were obtained in 15 out of 17 cases; five results were classified as excellent, four were good, and six were fair. The mean blood loss was 125.2 mL. Two complications were recorded. Conclusion: In distal tibial fractures with severe medial soft tissue damage caused by high-energy trauma, the staged anterolateral MIPO technique using anterolateral locking plates is a useful alternative treatment to achieving optimal wound care, rapid union with biological fixation, and intra-articular reduction.
박수홍(Soo-Hong Park),옥승호(Seung-Ho Ock),서인화(In-Hwa Seo),김소리(So-Ri Kim),정환희(Hwan-Hee Jeong) 한국소음진동공학회 2011 한국소음진동공학회 학술대회논문집 Vol.2011 No.4
In this study, peak frequencies of korean traditional wind instruments according to instruments were measured for introducing quality certification system. Also major dimensions of instruments were measured too, for analysis on manufacturing precesion.
김동식,정환희 한국컴퓨터교육학회 1999 컴퓨터교육학회 논문지 Vol.2 No.2
본 연구는 고등학교에서 강조되고 있는 논술 지도를 위한 웹 기반 가상교실의 프로토타입 개발에 그 목적이 있다. 특히 웹의 특성과 함께 논술 학습 전략을 충실히 구현할 수 있는 구성요소의 개발에 주된 관심을 두고 있다. 본 연구에서는 관련 문헌과 사례 분석을 통해 가상교실의 기능 및 학습 전략과 이를 실질적으로 수행할 구성요소를 결정한 후, 논술 교육을 위한 웹 기반 가상교실 프로토타입을 개발하였다. 프로토타입은 화면 설계에 필요한 구성요소의 특징과 활용 방식 등을 중심으로 제시하였다. 이는 실제로 웹 기반을 통해 바로 학습 프로그램을 개발할 수 있도록 하였다.