• 제목/요약/키워드: Absorbable

검색결과 259건 처리시간 0.027초

Zygomaticomaxillary complex fracture after two-jaw surgery

  • Park, Joseph Kyu-hyung;Kim, Sang Wha
    • 대한두개안면성형외과학회지
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    • 제21권5호
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    • pp.301-304
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    • 2020
  • Orthognathic surgeries often utilize rigid fixation for stabilization of the osteotomy site. The longterm fate of rigid fixations is still under investigation, and whether they should be routinely removed is under debate despite their low complication rates. Here, we report a case where a 26-year-old man suffered high-velocity trauma to his face 7 years after a two-jaw surgery. Computed tomography examination revealed a zygomaticomaxillary complex fracture, and open reduction and internal fixation was performed along with anterior maxillary wall reconstruction using absorbable mesh. Intraoperative examination revealed a broken L-shaped titanium plate near the fracture site with multiple bony fragments near each titanium screw. The rigid titanium system may have caused comminution of the fracture pattern, worsening the severity of the fracture.

경골 종지부를 분리하지 않은 자가슬괵건을 이용한 관절경적 전방십자인대 재건술 (Arthroscopic Anterior Cruciate Ligament Reconstruction Using Autogenous Hamstring Tendon Graft Without Detachment of the Tibial Insertion)

  • 김성재;이윤태;김현곤
    • 대한관절경학회지
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    • 제1권1호
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    • pp.81-85
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    • 1997
  • This article describes a modified arthroscopic technique of anterior cruciate ligament (ACL) reconstruction using quadrupled hamstring tendon graft. The autogenous semitendinosus and gracilis grafts are harvested without detachment of the tibial insertion. To obtain longer graft, the accessory tibial insertions of the hamstring tendons are dissected. The EndoButton(Acupex Microsurgical, Andover, MA) is used for femoral fixation and two spiked staples are used for tibial fixation in a belt buckle fashion. Then the residual anterior laxity is restored by additional absorbable interference screw fixations. In this technique. more viable graft is obtained and firmer distal fixation is achieved by preservation of the tibial insertion of hamstring tendons.

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Facial Rejuvenation Enhancing Cheek Lift

  • Bellity, Philippe;Bellity, Jonathan
    • Archives of Plastic Surgery
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    • 제44권6호
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    • pp.559-563
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    • 2017
  • Supported by recent literature on the signs of aging of the middle and lower face, our clinical research has documented a loss of volume of the deep structural components of the central face and a progressive descent of the nasolabial fat and the jowl fat, leading to facial fragmentation. The signs that appear around the age of 45 to 50 years are well targeted by the mini-invasive technique described here. We focused on refitting the jowl fat and the nasolabial fat associated with cutaneous tightening. The use of absorbable barbed sutures (Quill) led to significant improvements, enabling the fitting of fat on fat. In the past 4 years, 167 operations were performed using this technique. The clinical results were very satisfactory, yielding a natural effect caused by the mobilization and strong fixation of the nasolabial fat and the jowl fat in the direction opposite to their displacement.

식이섬유의 주요기능 (Nutritional Role of Dietary Fiber-Recent Knowledge on Dietary fiber)

  • Tsuji, Keisuke
    • 한국식품위생안전성학회지
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    • 제7권4호
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    • pp.173-176
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    • 1992
  • Non-absorbable substances in foods, for instance dietary fiber had been previously known as a non-nutritive part of foods. Recently , such a category has been gradually changed to as one of nutrients, As a main reason, dietary fibers includes many poly-or oligo-saccharides, which as resistant to alimentary hydrolyzing enzyme, However, parts of them are fermented by intestinal micro-organism to produce short chain fatty acids and so on. They are absorbed and utilized by human being. Now, it may be naturally accepted that dietary fiber is a kind of nutrients. Dietary fiber exerts many useful functions on body. They are classified into three large function , physicochemical function, physiological function and biological function. The last function of dietary fiber will be presented in the symphosium. Dietary fiber has several kinds of nutritional properties. One is energy source. Short chain fatty acids(SCFA) are oxidized and produced energy in body. Dietary fiber has not high energy, but not zero kilocalories. Another one is to be a constitutional component of higher animals' tissue. Last but most important one is physiological functions of dietary fiber.

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SMART 시스템의 공정설계 및 조업조건 선정 (Process Design and Selection of Operating Conditions for SMART System)

  • 류호정
    • 한국수소및신에너지학회논문집
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    • 제18권1호
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    • pp.1-11
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    • 2007
  • To check feasibility of SMART(Steam Methane Advanced Reforming Technology) system, conceptual design and sensitivity analysis of operating variables have been performed based on the design program of two-interconnected fluidized beds. Among three configurations of two-interconnected fluidized beds systems, the bubbling-bubbling system was selected as the best configuration. Process design results indicate that the SMART system is compact and feasible. Based on the selected operating conditions, the effects of variables such as process capacity, pressure, and weight percent of $CO_2$ absorbable component have been investigated as well.

Modified drainage of submasseteric space abscess

  • Choi, Moon-Gi
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • 제43권3호
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    • pp.197-203
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    • 2017
  • Once a submasseteric space infection is diagnosed, the key to resolving the infection is via surgical intervention to evacuate the pus. Although it is possible and occasionally practical to drain the submasseteric space via an intraoral approach, an extraoral approach may sometimes be required. Surgeons have encountered complications such as facial nerve damage during extraoral incision and drainage procedures, and they have felt that extraoral dissection was very difficult. As such, an easier and simpler technique is needed. Our department recently modified various drainage techniques for submasseteric space abscesses. Damage to the marginal branch of the facial nerve did not occur, and this technique was very simple and rapid, such that a novice physician could perform this procedure. This modified technique was possible with trismus and under local anesthesia. After intraorally checking the position of the drain, the intraoral wound is closed with an absorbable suture and the drain is fixed to the extraoral skin. When a masseteric space infection is diagnosed, multiple space involvement is ruled out, and dependent drainage is required, this modified drainage technique can be useful.

Gut microbiota-mediated pharmacokinetics of ginseng saponins

  • Kim, Dong-Hyun
    • Journal of Ginseng Research
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    • 제42권3호
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    • pp.255-263
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    • 2018
  • Orally administered ginsengs come in contact with the gut microbiota, and their hydrophilic constituents, such as ginsenosides, are metabolized to hydrophobic compounds by gastric juice and gut microbiota: protopanxadiol-type ginsenosides are mainly transformed into compound K and ginsenoside Rh2; protopanaxatriol-type ginsenosides to ginsenoside Rh1 and protopanaxatriol, and ocotillol-type ginsenosides to ocotillol. Although this metabolizing activity varies between individuals, the metabolism of ginsenosides to compound K by gut microbiota in individuals treated with ginseng is proportional to the area under the blood concentration curve for compound K in their blood samples. These metabolites such as compound K exhibit potent pharmacological effects, such as antitumor, anti-inflammatory, antidiabetic, antiallergic, and neuroprotective effects compared with the parent ginsenosides, such as Rb1, Rb2, and Re. Therefore, to monitor the potent pharmacological effects of ginseng, a novel probiotic fermentation technology has been developed to produce absorbable and bioactive metabolites. Based on these findings, it is concluded that gut microbiota play an important role in the pharmacological action of orally administered ginseng, and probiotics that can replace gut microbiota can be used in the development of beneficial and bioactive ginsengs.

In-vitro and in-vivo Behaviors of Poly(glycolide-caprolactone) Copolymer for Bioabsorbable Suture Materials

  • Yoo, Yeon-Chun;Kim, Hak-Yong;Jin, Fan-Long;Park, Soo-Jin
    • Bulletin of the Korean Chemical Society
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    • 제33권12호
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    • pp.4137-4140
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    • 2012
  • A novel bioabsorbable suture material, poly(glycolide-caprolactone) (PGLCL) monofilament, was prepared by spinning of the PGLCL copolymer. The physical properties, strength retention, biocompatibility, and organism resolvability of the PGLCL monofilament were investigated. The results showed that the knot pull strength of the monofilament was higher than that stated in European Pharmacopoeia. The in vivo retention strength following implantation was 64%, 23%, 7%, and 0% after one, two, three, and four weeks, respectively. Mortality, clinical signs, validation, and sterility tests indicated that all items had passed. Organism resolvability tests showed that the PGLCL monofilament, as a suture, was absorbed within 91 days.