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- 저자 : 이필동 ( Pil Dong Lee ) (검색결과 7 건)
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이승현,이혜경,조필동,Lee, Seung-Hyun,Lee, Hye-Kyung,Cho, Pil-Dong 대한성형외과학회 2010 Archives of Plastic Surgery Vol.37 No.6
Purpose: Reconstruction of soft tissue defects in the distal lower leg, especially in the distal third, largely depends on free tissue transfer and local fasciocutaneous flaps. But several local muscle flaps have also been proposed as useful alternative reconstructive manner. In this report, the authors present the successful use of the flexor digitorum longus muscle flaps in the distal lower leg reconstruction. Methods: Case 1: An 81-year-old woman with a dog bite wound in the left distal lower leg was admitted. She had a $10{\times}8\;cm$ wound with tibial exposure along the medial aspect of the leg. Soft tissue reconstruction with a flexor digitorum longus muscle flap and a split-thickness skin graft was performed. Case 2: A 77-year-old woman had a squamous cell carcinoma in the right distal lower leg. After wide excision, a $5{\times}4\;cm$ wound was developed with exposure of the tibia. The flexor digitorum longus muscle flap was transposed and covered with a split-thickness skin graft. Results: The flexor digitorum longus muscle flaps were shown to be useful to cover tibial defects in the distal lower leg. During the follow-up period, no significant donor site morbidity was found. Conclusion: The flexor digitorum longus muscle flap can be used to cover the exposed distal tibia, especially when a free tissue transfer is not an option. The relative ease of dissection and minimal functional deficits were the major advantages of this flap, while the extent of reach into the lower third has a limitation.
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어븀:이터븀:유리 마이크로칩 레이저를 이용한 단펄스 거리측정기 설계
고해석,이창재,박충범,전형하,안필동,박도현,Koh, Hae Seog,Lee, Chang Jae,Park, Choong Bum,Jeon, Hyoung Ha,Ahn, Pil Dong,Park, Do Hyun 한국군사과학기술학회 2018 한국군사과학기술학회지 Vol.21 No.3
We present a passively Q-switched monolithic Er:Yb:glass microchip laser developed in our lab. The microchip laser can produce pulses at 1535 nm of the 'eye-safe' wavelengths with the pulse energy of 50 uJ and the pulse width of 4-6 ns. Using the laser we also designed and developed a pulsed Er:Yb:glass microchip laser rangefinder. Expressions for background and signal power, noise, and signal-to-noise ratio are reviewed. A computer simulation was used to optimize laser power, receiver aperture, and preamplifier bandwidth for the efficient system design of the laser rangefinder. Experimental results are presented to compare with the theory.
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박지성 ( Park Ji-sung ),김영화 ( Kim Young-hwa ),이영일 ( Lee Young-il ),김필동 ( Kim Pil-dong ) 한국농공학회 2003 한국농공학회 학술대회초록집 Vol.2003 No.-
In this study, It classified type of irrigation water development in islands district. As result, the types which were type of reservior, fleshwater lake, pumped storage, ets. Most of islands district has delveloped reuse irrigation system as a pumped storage system. But, Irrigation water-reuse ratio doesn't define a basis clearly and the value of measurement for water-reuse ratio doesn't exist so far. so, we measured Irrigation water-reuse to clarify for water-reuse ratio in a pumped storage system.
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슬관절부의 치료하기 어려운 창상에서 선조작된 근육 피판을 이용한 재건
이훈범,김석원,강상윤,정윤규,조필동 大韓成形外科學會 1999 Archives of Plastic Surgery Vol.26 No.5
The reconstruction of soft tissue defects with open fracture around the knee joint is limited by its unique location. Free tissue transfer is hindered by the selection of the recipient vessel and problems of microsurgery. The arc of rotation, defect size, and location must be taken into consideration in the use of regional muscle transfer such as gastrocnemius. According to Mathes et al, the flap survival can be enhanced by selective division of the dominant segmental pedicles, only a part of which can normally be transposed safely on its minor segmental pedicle. Neovascularization, vascular proliferation, and dilatation have also been produced by the delay procedure using silicone sheets. The authors have used the delay procedures with wrapping of the gracilis or sartorius muscle which enabled distally-based transposition of these muscles. The method showed satisfactory outcome in resurfacing the wound around the knee joint. The indictions for this procedure were defects of moderate size and those difficult to reach with conventional muscle flaps. The flap could reach the upper one-third of the lower leg. Other merits are relative simplicity and reliability without significant extension of hospital stay. The drawbacks are the two operative procedures necessary and the risk of infection due to silicone sheets.
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