• Title/Summary/Keyword: suture material

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Evaluation of Modified Extraluminal Prostheses Applied to the Trachea in Dogs (개의 기관에 적용한 변형제작한 기관외보철물의 평가)

  • 이충호;우흥명;권오경;남치주
    • Journal of Veterinary Clinics
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    • v.16 no.1
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    • pp.1-7
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    • 1999
  • The purpose of the present study was to evaluate the easiness of suture and fixation of modified total ring prostheses (m-TRP). Twelve healthy dogs (B.W.2-10 kg) were randomly assigned to three groups. In group A (3 dogs), total ring prostheses was fixed by penetrating a suture material through tracheal mucosa. In group B (3 dogs), TRP was fixed by suturing on tracheal cartilage and muscular layer not penetrating through tracheal mucosa. m-TRP was applied to the cervical portions (group M-C,3 dogs), and thoracic portions (group M-T,3 dogs). Operating time of group M-C (37.33$\pm$6.80 min.) was shorter than those of groups B (83.33$\pm$8.50 min.) and A (63.33$\pm$11.06 min.) (p<0.01). Clinical complications were minimal and limited to mild, short-term hematoma, vomiting, edema, and inflammation. Coughing remarkably decreased in group B rather than group A. Dyspnea was not showed in group A, B, and M-C, but group M-T had a mild dyspnea. Gross postmortem findings were similar in all groups. Mild adhesions were present between prostheses and adjacent structures, but tracheal lumen was clean. Severe adhesions were present where m-TRP had been applied in the thoracic portions. Histopathologic abnormalities included mild to moderate adventitial and periprosthetic fibrosis and mild adventitial inflammation. The present study indicated that m-TRP were easier in suture and fixation than TRP and had no differences in support for trachea and side effects.

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AHP를 이용한 중소기업형 의료기기 개발사업의 선정

  • 조근태;하상도;김성민;염용권
    • Journal of Technology Innovation
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    • v.8 no.2
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    • pp.1-17
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    • 2000
  • Recently, due to the primary emphasis of health industry and to the restriction of budget, setting the priorities for effective and efficient investment on the medical device and material products has been one of the critical issues in the government sector. This paper shows how an Analytic Hierarchy Process (AHP) model can be used for assessing selected medical device and material products for grant of the Ministry of Health & Welfare. The final results show that unabsorbable suture is the most attractive medical device product among 88 evaluated products, followed by IV cannula, central venous catheter.

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The Results of Medial Horizontal Suture Fixation of Akin Osteotomy in Hallux Valgus (무지 외반증에서 Akin 절골술 내측 횡 봉합사 고정술의 결과)

  • Yune, Young-Phil;Kim, Jeong-Hoon
    • Journal of Korean Foot and Ankle Society
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    • v.21 no.1
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    • pp.1-6
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    • 2017
  • Purpose: The purpose of this study was to analyze the clinical results of medial horizontal suture fixation of Akin osteotomy in hallux valgus and present its advantages. Materials and Methods: This study was based on 48 cases of 35 patients with Akin osteotomy, who underwent surgery of hallux valgus between December 2014 and July 2015, and with at least 12 months of follow-up. The mean age of patients was 46.9 years (range, 16~71 years). The mean follow-up duration was 15.9 months (range, 12~18 months). Clinical evaluations included pain visual analogue scale (VAS) score, American Orthopaedic Foot and Ankle Society (AOFAS hallux metatarsophalangeal interphalangeal scale) score, and satisfaction score. Weightbearing anteroposterior radiographs were taken to measure the distal articular set angle (DASA) of the hallux. Radiographic bone union at 6 months follow-up was regarded as a success, while a loss of reduction and nonunion was regarded as a failure. Results: The mean pre- and postoperative pain VAS scores were 4.27 and 1.67, respectively (p<0.05). The mean AOFAS score improved from 59.7 to 80.5 (p<0.05). The DASA was improved from 8.15 to -2.57 (p<0.05). There was no case of skin irritation, cortical breakage, inflammation from the knot, and infection. All patients showed union without fixation failure. Conclusion: The clinical and radiological evaluations in this study demonstrate reliable results without complication. The medial horizontal suture fixation of the Akin osteotomy was effective, and the advantage of this procedure was unnecessity of the material removal, preservation of the joint, and no skin irritation.

Eyebrow Lift and Malar Fat Lift by Absorbable Suture Fixation with Subperiosteal Dissection (골막하 박리와 흡수성 봉합사에 의한 눈썹과 광대지방층의 거상술)

  • Chung, Jaehoon;Lee, Yoonhoo;Jang, Chunghyun
    • Archives of Plastic Surgery
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    • v.32 no.2
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    • pp.262-266
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    • 2005
  • In some blepharochalasis patients, upper blepharoplasty alone is not satisfactory because of narrow distance between eyebrow and eyelash. On that occasion, eyebrow lift is advisable. There are many methods of classical eyebrow lift, such as direct excision, transblepharoplasty approach, anterior hairline technique, and so on. But they are not so effective, have a tendency to recur and also give rise to side effects; unacceptable scar, facial nerve palsy, sensory loss and hematoma, etc. Some patients who have prominent nasolabial folds, are reluctant to perform face lift procedure due to psychologic or economic burden. The authors performed the eyebrow lift procedure separately or simultaneously with face lift or forehead lift. After making 2 or 3 slit incisions, we passed absorbable suture material, 3-0 vicryl, through suborbicularis oculi fat layer. Then it was passed through subperiosteal plane and fixated to the temporalis fascia. When patients complain prominent nasolabial folds, malar fat pad was elevated also in the same manner. This methods is effective and has minimal complication such as facial nerve palsy, scar, sensory loss. Recurrent tendency was rarely observed during follow-up. Dimples were observed at slit incision sites but they disappeared within 2 or 3 weeks. Eyebrow lift and malar fat lift by absorbable suture elevation with subperiosteal dissection is a simple and less morbid. Because of its effectiveness and little side effect or complication, this procedure can be a useful method.

A Case of Bronchial Stump Aspergillosis (기관지 단단 국균증 1예)

  • Lee, Hee-Seung;Ryu, Jung-Cheol;Park, Tae-Koon;Park, Tae-Joon;Yang, Eun-Soo;Choi, Soo-Jeon;Kwak, Young-Tae
    • Tuberculosis and Respiratory Diseases
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    • v.41 no.3
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    • pp.299-301
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    • 1994
  • Bronchial stump aspergillosis(BSA) is an infrequent disease developing on the bronchial stump after lobectomy with the silk as a suture material. The silk induces inflammatory reaction, granuloma formation, secondary infection of the bronchial stump and leads to BSA. If a patient complains of cough, hemoptysis, expectoration of suture material several months or years after lobectomy with the silk, BSA should be considered as one of causative mechanisms. Bronchoscopic identification of silk thread with aspergillosis and its removal is necessary. We report a case of BSA in a 59-year-old man with review of the literature.

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A Study on Sterilization of Medical Products by Gamma-irradiation. (Gamma선 조사에 의한 의류제품의 멸균연구)

  • 정해원;정문식;문석형
    • Journal of Environmental Health Sciences
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    • v.5 no.1
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    • pp.1-9
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    • 1978
  • Biological safety, physico-chemical and microbiological experiments were carried out in order to study the possibility of radiation sterilization on medical products, such as polyethylene and polystyrene bottles, gauze sponges and surgical silk suture. Results are as follows: 1. Biological test on plastic samples as to acute systemic toxicity, eye irritation, skin irritation, pyrogen, haemolysis showed satisfactory results. But physico-chemically, the oxidizable matter, nonvolatile residues, residue on ignition seemed to be increased slightly in irradiated samples, though the experimental results were within the range of U.S.P. 19, N.F. and K.P. III. 2. After irradiation, both plastic and gauze sponges showed considerable decrease in pH. 3. Most medical products were sterilized by 1.5 Mard. For the sterilization of the suigical silk suture, 4.5 Mrad is required dul to its radiation resistant micro-organisms. 4. Biologically, total dose of 2.5 Mrad was safe enough to sterilize the medical products, and physico-chemically the results are acceptable according to U.S.P. 19 and K.P. III. However, better results may be expected when the quality of material and additives are improved.

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The Vestibuloplasty Using Non-eugenol-based Non-zinc Oxide Oral Dressing Material

  • Ku, Jeong-Kui;Leem, Dae Ho
    • Journal of Korean Dental Science
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    • v.14 no.1
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    • pp.46-50
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    • 2021
  • This study describes a patient with insufficient vestibular depth who was operated with a vestibuloplasty using a non-eugenol-based non-zinc oxide oral dressing material. Partial thickness flap was elevated on recipient. After stabilization of apical positioned flap, the dressing material was applied on the recipient site with additional fixation by suture. The patient presented minimal discomfort such as in pain, food impaction and management of oral hygiene. Adequate vestibular depth without relapse was observed until 4 weeks after surgery. The vestibuloplasty with the oral dressing material may be an option for obtaining proper vestibular depth without complications.

Coracoclavicular Ligaments Reconstruction for Acromioclavicular Dislocation using Two Suture Anchors and Coracoacromial Ligament Transfer (견봉 쇄골 탈구의 봉합 나사못과 오구 견봉 인대 이전술을 이용한 오구 쇄골 인대 재건술)

  • Shin, Sang-Jin;Roh, Kwon-Jae;Jeong, Byoung-Jin
    • Clinics in Shoulder and Elbow
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    • v.11 no.1
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    • pp.46-52
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    • 2008
  • Purpose: This study examined the outcomes of reconstruction of the coracoclavicular ligaments with using two suture anchors and performing coracoacromial ligament transfer in patients with acromioclavicular dislocation. Material and methods: Forty patients with complete acromioclavicular dislocation were included in this study. According to the preoperative radiographs, 5 patients with AC dislocations were diagnosed as type III, 4 patients as type IV and 31 patients as type V. Two 3.5mm suture anchors with four strands of nonabsorbable sutures were separately placed on the anterolateral and posteromedial portion of the base of the coracoid process to stabilize the distal clavicle. The coracoacromial ligament was then transferred to the undersurface of the distal end of the clavicle for augmentation. Results: At a mean follow-up of 28 months, the average Constant score improved to 97 points. All the patients returned to normal life at an average of 3.2 months postoperatively. At the last follow-up, 37 patients achieved anatomical reduction and three patients showed complete redislocation. However, the clinical results of the patients with redislocation were satisfactory. Conclusion: Anatomical coracoclavicular reconstruction using two suture anchors and coracoacromial ligament transfer for treating complete acromioclavicular dislocation is a safe, effective procedure for restoring a physiologically stable acromioclavicular joint.

Surgical Outcome of Primary Repair in Anterior Cruciate Ligament Rupture - Minimum 4-years follow-up - (전방 십자 인대 봉합술의 수술적 치료 - 최소 4년 이상 추시 결과 -)

  • Byun, Ki-Yong;Rhee, Kwang-Jin;Lee, Suk-Joon
    • Journal of the Korean Arthroscopy Society
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    • v.4 no.2
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    • pp.123-127
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    • 2000
  • Purpose : To evaluate of the surgical outcome of primary repair in anterior cruciate ligament rupture. Material & Method : Twenty-five patients underwent arthroscopic primary repair of ACL. We performed pull-out suture of ruptured ligament in 18 cases, and suture and augumentation with gracillis & semitendinosus in 7 cases. At follow up, the International Knee Documentation Committee(IKDC) scale & Lysholm score were used to grade outcome, and also the KT-2000 arthrometer was used to evaluate objective ligament laxity. Results : In analysis of IKDC scale, final evaluation group were group A in 3 cases, group B in 13 cases, group C in 9 cases. The mean value of Lysholm score was 83 points. In KT-2000 arthrometer examination, mean anterior translation was 3.9mm at 201b, 7.3mm at 30lb. The mean difference value between injured knee and uninjured knee was 1.1mm at 201b, 2.29mm at 301b. There was statistical significance in mean difference value between injured and uninjured knee. Conclusion : By analysis of clinical & objective data, we could confirm that the mid-term result of ACL suture is not satisfactory. So, we recommend that ACL reconstruction would be done in young active patient rather than suture.

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A Study on MR Imaging Method for The Patient with Inserting Shoulder Joint Suture Anchor (견관절 삽입술을 시행한 환자의 자기 공명 영상법에 관한 연구)

  • Park, Eui-Cheol;Bae, Seok-Hwan;Ryu, Yeun-Chul;Park, Young-Joon;Kim, Yong-Gwon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.22 no.4
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    • pp.513-519
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    • 2021
  • Metallic suture anchors are very useful and common fixation devices that are inserted into the target bone to sustain the tendon of a patient with musculus supraspinatus tendon ruptures. On the other hand, the presence of a metallic material prosthesis, such as a metal suture anchor, causes severe MR imaging artifacts, including field distortion, signal loss, and failure of fat suppression. The difference in magnetic susceptibility between metal and other organic materials causes magnetic field distortion surrounding the prosthesis. The resulting magnetic field inhomogeneity makes the images with a lower signal-to-noise ratio and distortion. For a patient with a suture anchor implanted, MR imaging is the golden standard for determining the postoperative prognosis, and a fat-saturation sequence is one of the imaging methods most affected by metal-induced artifacts. In this study, three fat-saturation sequences were compared. Artifact quantification and contrast comparison between the supraspinatus tendon and the surrounding muscle were presented. The images obtained using the STIR pulse sequence showed fewer susceptibility artifacts and better visibility in the supraspinatus tendon and the tissue area. Therefore, the STIR sequence is the most appropriate fat-saturation imaging method for patients with a metallic prosthesis.