• Title/Summary/Keyword: functional plastic

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The Modeling Nature of Op ART Expressed in Contempotary Dresses (현대의상에 표현된 OP ART의 조형성)

  • 임영자;이현숙
    • Journal of the Korean Society of Costume
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    • v.24
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    • pp.143-155
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    • 1995
  • Unlike pure art such as painting and sculpture, dressmaking , a field of special plastic art, is characterized by its physical and functional nature. Having an inseparable relation with form, it is a field of art expressiion the human innersense of beauty in correlation with other various fields of art. In this respect, I think it should be necessary for us to study the forms of art from the past in order to study the forms of art from the past in order to study the correlations and mutual influencies between forms of pure art and dressmaking and to understand modern dressmaking from the standpoint of art. In this context, this study is an attempt to analze how the form and characteristics of OP ART , which represents the trends of the 1960's is embodied in modern dresses. The results are as follows : Fist , the expression of OP ART in dresses have visual effects harmonizing with bodily movements and , also, expanded the range and dynamics of expression which resulted from the introduction of visual phenomena in a fresh new sense by not limiting itself to the suggestion of patterns of OP ART. Second, OP ART paintings expressed the mobility and rhythimicity of a body in a limited space in a two-dimensional plane way of expression . When a dress is worn, however, it expands such mobility and rhythmicity in a cubic , three-dimensional way, maximizing the effects of , and boldly expression, OP ART, it can also create a new silhuette and ability of formation by seeking an open expression of OP ART rather than an expression of OP ART it self , due to the infinite possibility and unpredictability by the dynamics of movements and the elements principle of designs. Third , by applying the patterns of OP ART to dresses, we can obtain special visual effects of design, cover up the body's weak points, and create a desired three -dimensional sense by highlighting the beauty of the body's curved lines. Although modern dresses and OP ART are different genres of art, both have something in common in their pusuits. Since there is a infinite possibility in OP ART, there should be continuous attempts to combine dresses and art satisfying the sense of the times, which will lead dressmaking to a higher-dimensional dressmaking plastic art.

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Reconstruction of Sacral Pressure Sores Using Perforator-Based Island Skin Flaps (천공분지에 기저를 둔 도서형 피부피판을 이용한 천골부 욕창의 재건)

  • Moon, Ji Hyun;Lee, Nae Ho
    • Archives of Reconstructive Microsurgery
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    • v.9 no.1
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    • pp.62-67
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    • 2000
  • Recently, the incidence of pressure sore has been increased, due to increased number of patients with central nervous system injuries after traffic and industrial accidents or with long term loss of consciousness due to drug intoxication. The management of sacral pressure sore has been improved through the development of myocutaneous flap. However, sacrifice of the deep muscle cause some problems such as intraoperative bleeding, functional disabilities of donor site and further limitation of reconstruction for recurrent pressure sores in paraplegic patients. The development of perforator-based island skin flap introduce a new treatment modality for sacral pressure sores. We used perforator-based island skin flap in 15 cases with reasonable result from January 1998 to February 2000. This flap has a many advantages such as no significant sacrifice of the gluteus maximus muscle, wide rotation arc, reliable blood flow of the perforator, short elevation time for the flap, and no post-operative hindrance to walking in patients who are not paraplegic. There was no significant complication without significant sequelae and donor sites could be repaired primarily.

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Application Study and Pulp Separation Method by see weeds (해조류 Pulp 분리방법 및 응용연구)

  • Ryu, Soung-Ryual
    • Journal of the Korean Applied Science and Technology
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    • v.32 no.4
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    • pp.685-693
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    • 2015
  • In this study, we found that it is necessary to use the relatively new resource from seaweed extracts to extract and process pulp and create a local brand that can contribute to the local fishermen, development of new bio material, establishment of natural infrastructure, and acquisition of foreign investment. This study's seaweed pulp separation process is very overwhelming as seaweed is a compound of glycoside and polysaccharide. Nevertheless, we intend to develop a purification process and introduce applied technology to explore a new applied technology of pulp process. Once this technology is fully developed and mass produced, it would contribute to greater exports and increasing income level for the local fishermen. The ultimate goal of this study is to gather technical data from the first and second years of application, apply seaweed pulp to increase bio effect, and develop new functional bio-plastic packaging material, raw material, and samples with special characteristics of high molecules.

RECONSTRUCTION OF UNILATERAL TMJ ANKYLOSIS WITH METALLIC CONDYLAR PROSTHESIS;REPORT OF A CASE (금속 이식물을 이용한 악관절 강직증의 치험례)

  • Lee, Dong-Keun;Yim, Chang-Joon;Kang, Moon-Jeong
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.11 no.2
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    • pp.40-46
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    • 1989
  • Destruction of normal temporomandibular joint architechture may produce serious functional and cosmetic deficiencies. The literature is well documented as to the etiology and pathogenesis of temporomandibular joints. Numorous surgical procedure have been advocated for temporomandibular joint ankylosis from condylectomy to arthroplasty, cartilage transplant, metallic prosthesis, interpositional implant. These were to able reconstruct the normal mandibular function, and any even procedure could obtain the satisfactory results. In this paper, we reviewed young adult patient with TMJ ankylosis and facial asymmetry who was treated with metallic condylar prosthesis and orthognathic surgery.

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Early effect of Botox-A injection into the masseter muscle of rats: functional and histological evaluation

  • Moon, Young-Min;Kim, Young-Jun;Kim, Min-Keun;Kim, Seong-Gon;Kweon, HaeYong;Kim, Tae-Woo
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.37
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    • pp.46.1-46.6
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    • 2015
  • Background: The purpose of this study was to evaluate the change of food intake after different dosages of botulinum toxin A (BTX) injection in the animal model. Additionally, the dimensional and histological change at 14 days after BTX injection was also evaluated. Methods: The comparative study was performed using the BTX injection model in rats (n = 5 for each group). Group 1 was the saline-injected group. Group 2 was the 5-unit BTX-injection group to each masseter muscle. Group 3 was the 10-unit BTX-injection group to each masseter muscle. Food intake rates and body weight were checked daily before and after BTX injection until 10 days. All animals were sacrificed at 14 days after BTX injection, and the specimens underwent hematoxylin and eosin stain and immunohistochemical staining for myosin type II (MYH2). Results: The recovery of food intake in groups 2 and 3 decreased significantly compared with group 1 from day 2 to day 7 and day 9 after injection (p < 0.05). The BTX-treated masseter muscles were significantly smaller than those in group 1 (p = 0.015). The immunohistochemical findings demonstrated that the expression of MYH2 was significantly higher in group 3 compared to groups 1 and 2 (p < 0.001). Conclusions: BTX injection to the masseter muscle in rats demonstrated short food-intake-rate reduction with recovery until 10 days after injection. The thickness of the masseter muscle and MYH2 expression were significantly changed according to the injected dose of BTX.

Double-layered collagen graft to the radial forearm free flap donor sites without skin graft

  • Park, Tae-Jun;Kim, Hong-Joon;Ahn, Kang-Min
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.37
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    • pp.45.1-45.8
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    • 2015
  • Background: Radial forearm free flap is the most reliable flap for intraoral soft tissue reconstruction after cancer ablation surgery. However, unesthetic scar of the donor site and the need for a second donor site for skin graft are major disadvantages of the forearm flap. The purpose of this study was to report the clinical results of double-layered collagen graft to the donor site of the forearm free flap without skin graft. Methods: Twenty-two consecutive patients who underwent oral cancer ablation and forearm reconstruction between April 2010 and November 2013 were included in this study. Male to female ratio was 12:10, and average age was 61.0 years old (27-84). Double-layered collagen was grafted to the donor site of the forearm free flap and healed for secondary intention. Upper silicone had been trimmed at the periphery during secondary intention, and dry dressing was used. Postoperative scar healing and esthetic results and function were evaluated. Results: An average follow-up period was 34.9 months. The scar area was decreased to 63.9 % in average. The complete healing was obtained between 1.5 and 3 months according to the defect size. There was no functional defect or impairment 3 months after operation. All patients were satisfied with the esthetic results. Three patients died of recurred cancer. Conclusions: Double-layered collagen graft was successfully performed in this study. Without the thigh skin graft, patients had experienced less painful postoperative healing periods and discomfort.

Considerations and Protocols in Virtual Surgical Planning of Reconstructive Surgery for More Accurate and Esthetic Neomandible with Deep Circumflex Iliac Artery Free Flap

  • Kim, Nam-Kyoo;Kim, Hyun Young;Kim, Hyung Jun;Cha, In-Ho;Nam, Woong
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.36 no.4
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    • pp.161-167
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    • 2014
  • Purpose: The reconstruction of mandibular defects poses many difficulties due to the unique, complex shape of the mandible and the temporomandibular joints. With development of microvascular anastomosis, free tissue transplantation techniques, such as deep circumflex iliac artery (DCIA) flap and fibular free flap (FFF), were developed. The DCIA offers good quality and quantity of bone tissue for mandibular segmental defect and implant for dental rehabilitation. Virtual surgical planning (VSP) and stereolithography-guided osteotomy are currently successfully applied in three-dimensional mandibular reconstruction, but most use FFF. There are only a few articles on reconstruction with the DCIA that assess the postoperative results. Methods: Three patients admitted during a five month period (April of 2013 to August of 2013) underwent resection of mandible and DCIA musculo-osseous reconstruction using a VSP and stereolithographic modeling and assessment of outcomes included technical accuracy, esthetic contour, and functional outcomes. Results: This technique yielded iliac bone segment with excellent apposition and duplication of the preoperative plan. Flap survival was 100 percent and all patients maintained preoperative occlusion and contour. Conclusion: Based on our experience, we offer considerations and logically consistent protocols by classification of mandibular defects, and demonstrate the benefits in VSP and stereolithographic modeling of mandibular reconstructive surgery with DCIA flap.

The Effect of Indomethacin on the Production of Eicosanoids and Edema during Ischemia-Reperfusion Injury in Skeletal Muscle

  • Chung, Yoon-Jae;Sohn, Byung-Kyu;Hyun, Kwang-Soon;Yoo, Sang-Hee;Ryu, Hyong-Kyun;Kim, Hyung-Gun
    • The Korean Journal of Physiology and Pharmacology
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    • v.4 no.6
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    • pp.525-530
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    • 2000
  • During reperfusion of skeletal muscle after ischemia, lipid mediators, mainly eicosanoids, are released and may have a role in the pathogenesis of reperfusion injury. To validate the role of eicosanoids in the ischemia-reperfusion induced functional deficits in skeletal muscle, we compared muscle edema and the changes of eicosanoid concentration in the rat hind limb after ischemia-reperfusion injury by application of tourniquet. After 4 hours of ischemia, reperfusion was established for 4 hours by releasing tourniquet. To assess tissue damage, edema, and wet/dry weight ratios were determined and the eicosanoid concnentrations were measured by the HPLC. The muscle edema and the release of cyclooxygenase metabolites were not induced by the ischemia itself rather they were significantly increased by reperfusion. Indomethacin treatment ameliorated limb edema and decreased the release of $6-keto-PGF_{1{\alpha}},$ thromboxane $B_2,$ and $PGE_2$ inducedby reperfusion. But the inhibitory effect of indomethacin on edema (35%) was relatively low than the inhibitory effect on release of cyclooxygenase metabolites (up to 69%) by reperfusion. These results support the view that cyclooxygenase products may play a significant role in the formation of muscle injury by ischemia-reperfusion and suggest that nonsteroidal antiinflammatory agents might be partially beneficial to the management of acute limb ischemia-reperfusion injury.

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CORRECTION OF SECONDARY LIP DEFORMITIES IN CLEFT PATIENTS (구순열 환자의 이차 구순 성형술)

  • Kim, Jong-Ryoul;Byun, June-Ho
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.21 no.4
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    • pp.401-406
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    • 1999
  • Secondary deformities of the lip and nose in individuals with repaired unilateral and bilateral clefts may vary in severity, depending on the state of the original defect, the care taken in the initial surgical procedure, the pattern of the patient's facial growth, and the effectiveness of interceptive orthodontic technique. Because each patient has a unique combination of deformities, their surgical reconstruction usually requires the modification and combination of several surgical techniques. Residual lip deformities after primary repair may be esthetic or functional and include scars, skin shortage or excess(vertical and transverse), orbicularis oris muscle malposition or diastasis. The key to accurate repair of secondary cleft lip deformities is a precise diagnosis. This requires observation of the patient in animation and repose. The quality of the scar is not the only factor determining the overall appearance of the lip. Observing the patient in the animated position is critical to assess muscular function. Factors that require precise analysis include lip length, the appearance of the Cupid's bow and philtrum, and nasal symmetry. Only after this detailed analysis can a decision be made as to wether a major or minor deformity exists. We report successful cases using various techniques for the secondary lip deformities.

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Clinical Application of Great Saphenous Vein Graft in the Oral and Maxillofacial Reconstruction (구강악안면 재건을 위한 대복재정맥의 유용성)

  • Park, Jung-Min;Kim, Soung-Min;Seo, Mi-Hyun;Kang, Ji-Young;Myoung, Hoon;Lee, Jong-Ho
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.34 no.2
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    • pp.140-147
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    • 2012
  • Microvascular reconstruction, in the oral and maxillofacial regions, is a widely accepted as the best way to overcome the complex oral cavity defects. Many patients requiring composite reconstructions have been treated previously with radiation therapy, chemotherapy, selective and/or functional neck dissection or any of these combinations. In many cases of these patients, inadequate neck vessels for the microanastomosis of free flap are available, due to a lack of recipient vessels in the neck, poor vessel quality or vessel caliber mismatch. To achieve a tension-free anastomosis, vein grafting must be considered to span the vessel gap between the free flap pedicle and the recipient neck vessels. Although most microsurgeons believed that interpositional grafts are to be avoided due to vessel thrombosis and increased number of necessary microanastomosis, we, authors have some confidence of equivalency between reconstruction with and without interpositional saphenous vein graft. The great saphenous vein, also known as the long saphenous vein, is the large subcutaneous superficial vein of the leg and thigh. It joins with the femoral vein in the region of femoral triangle at the saphenofemoral junction, and coursed medially to lie on the anterior surface of the thigh before entering an opening in the fascia lata, called the saphenous opening. For a better understanding of the great saphenous vein graft for the interpositional vessel graft in the oral cavity reconstructions, and an avoidance of any uneventful complications during these procedures, the related surgical anatomies with their harvesting tips are summarized in this review article in the Korean language.