• Title/Summary/Keyword: Absorbable

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Simultaneous Correction of Depressed Scar Using Dermofat Graft Harvested during Scar Revision (다발성 안면 반흔을 가진 환자의 반흔 절제술에서 얻은 진피지방을 이용한 함몰 반흔의 동시교정)

  • Cho, Min Su;Hong, Yoon Gi;Seo, Sang Won;Chang, Choong Hyun
    • Archives of Plastic Surgery
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    • v.32 no.6
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    • pp.787-790
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    • 2005
  • While no scar can be completely erased, most linear facial scars can result in a relatively good scar after revision. However, in case of round shaped depressed scar, the scar is often lengthened following an incisional technique. This study focuses on the technique of dermofat graft harvested from the adjacent scars for correction of depressed scars. 18 patients having multiple facial scars with a depressed scar among 375 patients who had undergone scar revision were treated from June 2003 to May 2004. Dermofat was harvested from the adjacent linear scar, then it was deepithelialized, reshaped, and grafted to the depressed scar through a small incision. Cosmetic results were generally good. Complications were overcorrection in 4 patients; hyperpigmentation occured in 1 patient. However, 13 patients were satisfied with the results. The advantages of our technique are as follows: it does not require additional operation; dermofat graft has low absorbable rate; it can maintain the volume with an adequate texture.

Evaluation of Autoligation Technique for Castration in Small Breed Dogs

  • Kim, Jong-In;Jeong, Soon-Wuk
    • Journal of Veterinary Clinics
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    • v.37 no.2
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    • pp.75-81
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    • 2020
  • The objective of the present study was to evaluate the effectiveness of autoligation techniques for castrating healthy male small breed dogs. Forty dogs were divided into four groups, with 10 in each group, based on maturity and the surgical technique used: 1) immature dogs aged less than 1 year, with autoligation of the spermatic cord via a scrotal approach (SAL) as the surgical technique (SAL-IM); 2) mature dogs aged 1 year or older, with the same SAL surgical technique (SAL-M); 3) immature dogs aged less than 1 year, with double ligation of the spermatic cord with an absorbable suture via a prescrotal approach (PDL) as the surgical technique (PDL-IM); and 4) mature dogs aged 1 year or older, with the same PDL surgical technique (PDL-M). The effectiveness of the surgical technique was evaluated by comparing the operating time and complications between these four groups. The significant decreases in operating times were found in SAL-IM and SAL-M compared with those of PDL-IM and PDL-M (p < 0.01 and p < 0.01). Regardless of maturity, the SAL surgical technique reduced operating time by approximately 69.5% compared with the PDL surgical technique. When the complication severities were scored, the results showed no significant differences among the four group. The autoligation technique for castration in healthy male small breed dogs is considered to be effective because the operating time consuming is less than conventional techniques.

The Use of Special Washers in Bone Plates for Improved Impact-Absorbing Characteristics (충격흡수 특성의 향상을 위하 내고정용 특수 와셔에 관한 연구)

  • 김윤영;김장수
    • Journal of Biomedical Engineering Research
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    • v.16 no.4
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    • pp.457-462
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    • 1995
  • Unlike the usual bone plate and screw fracture fixation, an improved plate fixation method, which can transfer gradually physiological load to bones, is described. The key feature of the present method is to use washers between the plate and the screw. Bio-absorbable materials or non-ferrous materials with good damping characteristics are used to manufacture the washers. The purpose of this paper is to discuss potential advantages of the proposed method, and to show experimentally its improved impact-absorbing characteristics. Vibration experiments are carried out for pig femurs and cow tibias with and without the proposed washers. This experiments show that the washers can drop the first peak value suite substantially in the FRF plots. Although in-vivo experiments have not been conducted, the present fixation method appears to be a simple and effective alternative to the presently used method.

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The Study on Quantum Efficiency of $CaWO_4$ Screen with Diagnostic X-ray (진단 X선에 대한 $CaWO_4$ 증감지의 양자효율 연구)

  • Park, Ji-Koon;Kang, Sang-Sik;Jang, Gi-Won;Lee, Hung-Won;Nam, Sang-Hee
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2002.11a
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    • pp.379-382
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    • 2002
  • Lately, intensifying screen of the $CaWO_4$ is used to medical treatment and diagnosis of the image. In this paper, we investigated transmission fraction and mass attenuation coefficient of $CaWO_4$ screen about diagnostic x-ray of low energy using MCNP 4C code. Experimentally, for 0.9 mm-$CaWO_4$ screen, the absorbable rate of diagnostic x-ray is more than 95%. according to kVp, the experimental value of mass attenuation coefficient is in a1most agreement with an corrected estimate value of MCNP and the deviation of experimental values is less than ${\pm}7%$. Using the MCNP code through this paper, we can make an estimate of signal and design for construction of the CaWO4/a-Se based digital x-ray image detector and make a good use of the foundation data for development of other materials.

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Synthesis and Properties of Amphiphilic Polymers Containing Silicone (실리콘을 함유한 양친성 중합체의 합성 및 성질)

  • Yoon, Koo Sik;Sung, Yong Kiel;Kim, Sung Wan
    • Journal of the Korean Chemical Society
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    • v.39 no.1
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    • pp.76-80
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    • 1995
  • Polydimethylsiloxane(PDMS)-co-poly(2-hydroxyethyl methacrylate)(PHEMA) was prepared and the degree of swelling of solvents into the polymers was examined. It was confirmed that the solubility parameter of PHEMA homopolymer is 26 (J/cm3)1/2. Ethanol was significantly absorbed into copolymers containing large amount of PHEMA, while tetrahydrofuran was effectively absorbed into copolymers containing large amount of PDMS. Absorption of polar solvents into the copolymers were increased with the increase of PDMS content. The model drug, crystal violet (CV), was more absorbable into PDMS-HPEMA copolymers than PHEMA homopolymer. Absorption of CV was decreased with the increase of PDMS content of the copolymers.

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Triple Labral Lesion of Shoulder - A Case Report - (견관절의 삼중 관절와 순 병변 - 증례 보고 -)

  • Choi, Nam-Yong;Song, Hyun-Seok;Yoon, Jae-Woong
    • Clinics in Shoulder and Elbow
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    • v.12 no.1
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    • pp.80-83
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    • 2009
  • Purpose: A triple labral lesion represents a combination of injuries of the anterior, posterior and superior glenoid labrum. The injury mechanism and symptoms is not completely understood. Materials and Methods: We encountered a triple labral injury in a 39-year-old male complaining pain and active abduction difficulty after a motor vehicle accident. Currently, he does not complain any instability symptoms. The labrum was repaired using bio-absorbable suture anchors and a suture hook. Results: Eighteen months following surgery, the active range of motion was restored and he had no difficulty in his daily activities.

Hepatic Encephalopathy in Captive Scimitar-Horned Oryxs (Oryx dammah) (동물원 흰오릭스에서 발생한 간성뇌증 3례)

  • Kim, Kyoo-Tae;Lee, Seung-Hun;Kwak, Dongmi
    • Journal of Veterinary Clinics
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    • v.32 no.4
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    • pp.385-388
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    • 2015
  • Three cases of hepatic encephalopathy were diagnosed in scimitar-horned oryxs housed at a zoo. Administration of amino acid and ornithine-aspartate fluid therapy via an intravenous injection decreased serum levels of ammonia and liver enzymes in cases 1 and 2. Further, additional oral ingestion of non-absorbable disaccharide lactulose to eliminate intestinal nitrogenous products enabled recovery of two oryxs. However, in case 3, the serum levels of ammonia and liver enzymes increased even after treatment, and the oryx died. Necropsy revealed cecum and colon compaction due to stiff dried feces, and this condition could have an adverse effect on increased blood ammonia levels that may have caused mortality. Overconsumption of pellets may have been the primary cause of hepatic encephalopathy. Thus, a fiber rich diet with decreased amount of pellets is needed to prevent hepatic encephalopathy, since the normal diet of scimitar-horned oryxs is rich in fiber.

Iron Nutriture and Related Dietary Factors in Apparently Healthy Young Korean Women(2) : Analysis of Iron in Major Food Items and Assessment of Intake and Availability of Dietary Iron (우리나라 젊은 성인 여성의 철분영양상태와 이에 영향을 미치는 식이요인 분석 (2) : 주요 식품의 철분 분석과 철분 섭취량 및 이용율 평가)

  • 계승희
    • Journal of Nutrition and Health
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    • v.26 no.6
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    • pp.703-714
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    • 1993
  • The iron content of 178 food items were analyzed by ICP to provide database to calculate dietary intake of iron in Korea. The analysis data showed significant deviations of iron contents in some food items compared with Food Composition Table of KRNI which is most widely used at present. Three day dietary intake records were collected from 96 female college students to estimate mean daily iron intake and bioavailability of dietary iron. Mean daily intake of total iron in the study subjects was 13.2mg and heme iron intake was 0.94mg, 6.7% of total iron intake. BGioavailability of dietary iron was calculated by two methods. Total absorbable iron was calculated by the method of Monsen, body iron storage of the subjects being estimated with serum ferritin concentrations, was 1.21mg and bioavailability of dietary iron was thus 9.3%. Bioavailability calculated with the method by Hallberg was 11.22%. Two values of dietary iron bioavailability of the present study are lower than the reported values in adult women consuming typical western diets but within the range estimated for vegetarians. Considering high prevalence of iron deficiency based on serum ferritin concentrations and low bioavailability of diet in young adult Korean women, more efforts should be made to increase the content and bioavailability of iron in diet of Korea adult women.

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Oroantral fistula after a zygomaticomaxillary complex fracture

  • Ahn, Seung Ki;Wee, Syeo Young
    • Archives of Craniofacial Surgery
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    • v.20 no.3
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    • pp.212-216
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    • 2019
  • Zygomaticomaxillary complex (ZMC) fractures account for a substantial proportion of trauma cases. The most frequent complications of maxillofacial fracture treatment are infections and soft tissue flap dehiscence. Postoperative infections nearly always resolve in response to oral antibiotics and local wound care. However, a significant infection can cause a permanent fistula. A 52-year-old man visited our clinic to treat an oroantral fistula (OAF), which was a late complication of a ZMC fracture. Postoperatively, the oral suture site dehisced, exposing the absorbable plate. However, he did not seek treatment. After 5 years, an OAF formed with a $2.0{\times}2.0cm$ bony defect on the left maxilla. We completely excised the OAF, harvested a piece of corticocancellous bone from the iliac crest, inserted the harvested bone into the defect, and covered the soft tissue defect with a buccal mucosal transposition flap. Although it is necessary to excise OAFs, the failure rate is higher for large OAFs (> 5 mm in diameter) because of the extensive defect in the underlying bone that supports the overlying flap. Inappropriate management of postoperative wounds after a ZMC fracture can lead to disastrous outcomes, as in this case. Therefore, proper postoperative treatment and follow-up are essential.

Effects of a Health Drink Containing the Extract of the Hovenia Dulcis Fruit Stalk and Theracurmin, on Ethanol-Induced Hangover

  • Kang, Nam E;Oh, Yoon Sin;Yeo, Hee Kyung;Baik, Hyun Wook;Jang, Se-Eun
    • Journal of the Korean Society of Food Culture
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    • v.36 no.6
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    • pp.563-570
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    • 2021
  • The fruit stalk of Hovenia dulcis (H.dulcis) is traditionally used to relieve hangovers in Korea. Theracurmin is a highly absorbable curcumin preparation which increases the bioavailability of curcumin. Curcumin is known for its antioxidant and anti-inflammatory effects. However, the role of this combination in lowering alcohol levels in the body, thereby alleviating the severity of alcohol-induced hangover has not been investigated. Therefore, we conducted a study to investigate the eliminatory effects of a health drink containing the extract of the H. dulcis fruit stalk and theracurmin (theracurmin drink) on ethanol-induced hangover in rats. The theracurmin drink delivered orally to rats 30 mins before the administration of 40% ethanol (5 g/kg body weight), lowered the concentration of ethanol and acetaldehyde in the blood samples collected 1, 3, and 5 h after ethanol administration. Furthermore, the theracurmin drink increased the activities of alcohol dehydrogenase and aldehyde dehydrogenase enzymes. The effectiveness of the theracurmin drink was thus superior to that of other health drink products, suggesting that its consumption may alleviate or prevent an alcohol-induced hangover.