• Archives of Plastic Surgery
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• 제40권6호
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• pp.711-714
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• 2013

Background The most common cause of skin graft failure is the collection of blood or serous fluid underneath the graft. In our study, we describe the use of silicone tube for tie-over dressing to secure the skin graft margins with the aim of decreasing loss of the skin graft, particularly in grafting of deep wounds. Methods Between March 2008 and July 2011, we used this technique in 17 patients with skin defects with depths ranging from 3.5 to 8 mm (mean, 5.5 mm). First, the skin graft was sutured with 3/0 silk suture material from its corners. Then, a silicone round drain tube was sutured with 3/0 absorbable polyglactin 910 over the margins of the graft. Finally, long silk threads were tied over the bolus dressing, and the tie-over dressing was completed in the usual fashion. Results The mean follow-up was 7 months (range, 2-10 months) in the outpatient clinic. Graft loss on the graft margins due to hematoma or seroma was not developed. The results of adhesion between the graft and wound bed peripherally was excellent. Conclusions In our study, we suggest that use of a silicone tube for additional pressure on the edges of skin grafts in case of reconstruction of deep skin defects.

• Archives of Plastic Surgery
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• 제45권4호
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• pp.357-362
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• 2018

Background The most common complication after tendon repair is the development of adhesion, with subsequent rupture. Methods In this study, we present a new method in which the tendon healing contact surface is increased to reduce these complications. The tendons of chickens in groups 1, 3, and 5 were transversely cut and repaired with in the traditional fashion with double-modified Kessler method and 5/0 polypropylene. In the other groups, 3 mm of the tendon was removed from the proximal half of the upper end and from the distal half of the lower end of the tendon, and they were repaired with the modified Kessler method. The tendons of the chickens in groups 1 and 2 were evaluated immediatelly after surgery. Groups 3 and 4 were evaluated at 4 weeks after surgery. Groups 5 and 6 were evaluated at 6 weeks. Results Increases in transient inflammation and connective tissue formation were observed more clearly in the group treated with the new method in histopathological investigations at weeks 4 and 6. The stretching test showed statistically significant differences between groups 3 and 4 (P<0.05) and groups 5 and 6 (P<0.05). Conclusions When repairing tendons with the new method, the healing surface increases and the direction of collagen fibers at the surface changes. Because of these effects, the strength of the tendon healing line increases; we therefore expect that this technique will enable patients to safely engage in early active exercise after the operation, with less risk of tendon rupture.

• 디자인학연구
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• 제13권1호
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• pp.149-156
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• 2000

본 연구의 목적은 혼례가구 디자인에 영향을 미친 요인을 분석하는 것이다. 이를 위해 현대 혼례가구 디자인의 특징을 고찰한 결과 혼례가구는 여성을 위한 안방가구이며 세트로 된 장롱과 화장대로 이루어졌고 점차 주거용 가구 전반으로 그 종류가 확대되었음을 알 수 있다. 혼례가구 디자인은 현대 전반기 핵가족으로의 변화와 혼례 및 혼수 규범이 디자인에 미치는 영향이 컸으나 후반기에는 산업화에 의한 경제발전과 상업주의에 의해 양식이 정립되었다. 특히 주택과 생활양식의 변화는 혼례가구 디자인의 기능성 향상을 기하고 유행을 이끌게 됨으로써 미래의 혼례가구 디자인의 변화를 예측할 수 있는 중요한 요인이라고 하겠다. 그러므로 혼례가구 디자인의 기준은 기능성, 경제성, 장식성, 개성 뿐 아니라 상징성과 유행성이 고려되어야 할 것이며 제시된 혼례가구 디자인의 모형은 다차원적인 디자인 문제 해결을 위해 적절히 활용될 수 있음을 제시해 주고 있다.

• 디자인학연구
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• 제13권1호
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• pp.157-166
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• 2000

인지과학이 새로운 학문으로 등장하기 시작하면서 인간의 두뇌를 연구하는 움직임 또한 매우 활발히 일어나고 있다. 이와 함께 디자인영역에서도 감성적 요소가 연구의 중심을 차지하기 시작했고 이를 활용한 디자인 프로세스 개발이 다양화되어 가고 있다. 본 연구에서는 변화하고 있는 이런 현상들을 적극적으로 수용하고 이를 디자인기법으로 전환시켜 보고자 노력하였다. 그를 위해 현재 유행처럼 확산되고 있는 마인드 맵을 기법의 대상으로 삼았고 고정관념에서 벗어 날 수 있는 방법에 대한 이론적 설명을 시도하였다. 문제에 접근하기 위해 학습되는 정보가 중요하다고 판단하고 좌, 우측 뇌의 역할을 아날로그이미지와 디지틀 이미지로 규정, 언어(디지틀 이미지)와 시각적 사고(아날로그 이미지)를 자유롭게 넘나드는 방식으로 맵핑기법을 활용하여 해석하였다. 기법의 연구목표는 멥핑방식을 이용한 발상법을 초점으로 추진하였고 그 결과 디자인프로세스 상에서 문제제기로 시작된 명제를 문제 해결까지 브레인스토밍기법으로 진행하며, 문제 해결은 컨셉제시로 가시화되어진다는 논리체계[그림8]를 구축하였다. 또 제시된 컨셉에 의해 디자인적 요구에 의한 아이디어 확산도 맵핑기법을 적용 해결할 수 있다고 보고 [그림12]와 같은 사례를 결과물로 제시하였다.

• Archives of Plastic Surgery
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• 제35권2호
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• pp.152-158
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• 2008

Purpose: Mandibulotomy approach and mandible sparing approach are most common methods for oropharyngeal cancer surgery. Good surgical view and convenience of flap inset are advantages of mandibulotomy approach but deformity of mandible contour, postoperative malocclusion and radionecrosis are its limitations. To make up for the limitations, mandible sparing method is commonly performed, but limited surgical view and difficulties of flap inset are the weak points of this approach. The purpose of the study is to compare mandibulotomy and mandible sparing approaches in postoperative complications and progression of the treatment in oropharyngeal cancer operation and reconstruction. Methods: Single reconstructive microsurgeon operated for oropharyngeal cancer patients with different surgeons of head and neck department who prefer mandibulotomy and mandible sparing approach respectively, and we compared the frequency of postoperative complication, operation time, duration of hospitalization and recurrence rate between two different surgical approaches. Results: Mandibulotomy approach was used in 18 patients and mandible sparing approach was used in 15 patients. In mandibulotomy approach, there happened one case of teeth injury and one case of necrosis of skin and gingiva, but there happened no malocclusion and radionecrosis. In mandible sparing approach, there were 3 cases of fistula and 2 cases of infection which are significantly higher than mandibulotomy approach. There were no significant differences between early regional recurrence and duration of hospitalization. Conclusion: In this study we compared two different methods for the surgical approach in oropharyngeal cancer surgery. As mandible sparing approach has difficulties of limited surgical view, it can be used for the limited indications of anterior tongue and mouth floor cancer. Mandibulotomy approach has advantages of good surgical view and convenience of flap inset. In this method preservation of gingival tissue, watertight fashion suture, delicate osteotomy and plate fixation to maintain occlusion are the key points for the successful results.

• Archives of Plastic Surgery
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• 제36권2호
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• pp.153-160
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• 2009

Purpose: The heterodigital or homodigital artery island flap is a popular method of reconstruction for finger defects. Sometimes, digital artery island flap has some disadvantages such as postoperative flap edema, congestion, and partial necrosis of the flap margin. However, we could decrease these disadvantages by means of venous superdrainage. The aim of this study is to report usefulness and postoperative results of venous supercharging digital artery island flaps for finger reconstruction. Methods: From March of 2005 to March of 2008, a total of eight patients with soft tissue defects of the finger underwent venous supercharging digital island flap transfer. Briefly, the flap is harvested along with dorsal vein that is then anastomosed to a recipient vein in an end - to - end fashion, after flap transfer and insetting. Using this technique, eight patients were operated on, ranging in age 23 to 52 years. Results: All the flaps survived with a success rate of 100 percent, thus fully satisfying the reconstructive requirements. No postoperative flap congestion was recognized, obviating the need to take any measures for venous engorgement, such as suture removal. Among 8 cases, it was possible to make an long - term and follow - up observation more than 6 months. In these cases, the fact that light touches and temperature sensations can be detected in all the flaps. Cold intolerance and hyperesthesia were not seen in our series. Conclusion: Providing good harmony with conventional methods and microsurgery, inclusion of a vein with the heterodigital and homodigital artery island flap allows a more reliable and safer reconstructive choice for finger defects. The venous supercharged island flap is a reliable flap with a consistent arterial structure, and with its augmented venous drainage, it is more reliable, providing single - stage reconstruction of adjacent finger defects, including the fingertip.

• Archives of Reconstructive Microsurgery
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• 제25권2호
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• pp.25-28
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• 2016

Purpose: Reconstruction of small defects of the dorsal fingers and toes is a challenging task. Although adipofascial flap is widely used for these areas, additional refinements are warranted. In this paper, we define the appropriate defect size in the finger and toes that can be treated with the adipofascial flap, refine its surgical indications and present a few surgical tips. Materials and Methods: Twelve patients with dorsal defects of the fingers and toes were treated with a random-type adipofascial turn-over flap and skin graft. If the defect area exceeded the size that could be covered by a conventional design, the flap base was designed in oblique or curvilinear fashion to lengthen the flap. For accurate defect coverage, the width of the flap base was designed in an asymmetrical shape depending on the defect configuration, varying the width from 0.3 to 1.0 cm, as opposed to the standard 0.5 to 1.0 cm width. Moreover, the lateral limit of the flap was defined as the lateral axial line. The size of the defect ranged from $3.0{\times}1.7cm$ to $1.5{\times}1.3cm$. Results: All flaps survived completely. Gliding function of the hand was well preserved and there was no evidence of tendon adhesion. Conclusion: The small defect in the dorsal finger and toe can be defined as less than one phalanx-length, measuring about $3.0{\times}2.0cm$ in size. If the defect exceeds this dimension, it is recommended that a different option be considered. We believe the adipofascial flap is an excellent option for treating small defects.

• 디자인학연구
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• 제11권1호
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• pp.209-218
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• 1998

뉴 미디어를 비롯한 신문지상과 TV에서 날마다 쏟아있고 있는 정보의 확산은 점차로 소비자의 의식을 새로운 가치관으로 이끌어가고 있으며 또 소비적 성향을 그 제품이 주는 실용성이나 경제성이라는 가치보다는 감성적 욕구로서의 기호 가치로서 제품의 가치를 인식하게 하고 있다. 가치관과 의식의 변화는 디자인에 많은 변화를 초래했는데 그 변화를 살펴보면 획일적이고 일방적이었던 모던 시대의 디자인에서 다의적이고 다중 적으로, 상품 소비에서 기호 소비 또는 이미지 소비로 물건의 외면 성, 현시성에 대립되는‘상품의 내면화’를 추구하게 되었으며, 유행 위주의 대중 소비에서 개성 중심의 개인 소비 성향으로서 변화이다. 이것은 기호 소비자의‘디자인 의미 해독’범위가 다양해지고 있음을 의미한다. 기호는 담론(discourse)을 옮기는 커뮤니케이션의 형태이며 담론은 의미 생성자와 의미소비자간의 커뮤니케이션에 관한 것을 말한다. 이 논문에서는 담론으로서의 기호 표현을 살펴보는 첫 단계로 광고의 기호 표현을 통해 직접적 표현의 경우, 은유적 표현의 경우로 나누어 생각해 보았다. 그리고 그 중 포스트모던의 성향을 표현하기에 적합하다고 판단되는 은유적 기호 표현에 대해서 좀더 깊이 있게 분석해 보고자하였다.

• Archives of Pharmacal Research
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• 제24권2호
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• pp.114-118
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• 2001

The present study was undertaken to investigate whether or not the hepatoprotective activity of acetylbergenin was superior to bergenin in carbon tetrachloride ($CCl_4$)-intoxicated rat. Acetylbergenin was synthesized by acetylating bergenin, which was isolated from Mallotus japonicus. The hepatoprotective effects of acetylbergenin were examined against $CCl_4$-induced liver damage in rats by means of serum and liver biochemical Indices. Acetylbergenin was administered orally once daily for 7 successive days, then a 0.5 ${m/kg}$ mixture of $CCl_4$in olive oil (1:1) was intraperitoneally injected at 12 h and 36 h after the final administration of acetylbergenin. Pretreatment with acetylbergenin reduced the elevated serum enzymatic activities of alanine/aspartate aminotransferase, sorbitol dehydrogenase and $\gamma$-glutamyltransferase in a dose dependent fashion. Acetylbergenin also prevented the elevation of hepatic malondialdehyde formation and depletion of glutathione content dose dependently in $CCl_4$-intoxicates rats. In addition, the decreased activities of glutathione S-transferase and glutathione reductase were restored to almost normal levels. The results of this study strongly suggest that acetylbergenin n has potent hepatoprotective activity against $CCl_4$-induced hepatic damage in rats by glutathione-mediated detoxification as well as having free radical scavenging activity. In addition, acetylbergenin doses of 50 ${mg/kg}$showed almost the same levels of hepatoprotection activity as 100 ${mg/kg}$ of bergenin, indicating that lipophilic acetylbergenin is more active against the antihepatotoxic effects of $CCl_4$ than those of the much less lipophilic bergenin.

• 디자인학연구
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• 16호
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• pp.53-63
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• 1996

고도의 경제성장과 더불어 우리들의 생활이 윤택해지면서 과거 부(富)의 상징으로 느껴졌었던 자동차가 지금은 우리들에게 없어서는 안될 생활필수품으로 자리잡게 되었다. 이러한 시대적 변화는 MY-CAR시대를 맞이하게 되었고, 그 수요는 폭발적으로 증가하고 있는 실정이다. 그렇지만 이러한 추세에 비하여 우리의 자동차 개발 기술 수준은 선진국들 처럼 질(質)과 양의 측면에서 균형을 이루지 못하고 있어 아직도 개인의 기호를 만족시키기에는 역부족임을 실감케 하고 있다. 본 연구에서는 자동차 개발기술과 품질의 균형 있는 발전을 꾀하기 위하여 현재까지 관심사가 적었던 자체 색 분야를 죽 연구대상으로 하여 주거의 연장으로서 필요한 상황과 최근 한국 승용차의 색상경향, 시대적 환경 요인들을 조사, 분석하고 색상개발 시 제한될 수 있는 여러 가지 문제점을 파악하여 현대인의 기호에 맞는 승용차 색상개발 시에 참고 자료로 제시하여 보다 체계적이고 효과적인 차체 색을 개발하는데 도움이 될 것으로 충분히 예상된다.