• 제목/요약/키워드: Re-rupture

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Numerical study of progressive collapse in reinforced concrete frames with FRP under column removal

  • Esfandiari, J.;Latifi, M.K.
    • Advances in concrete construction
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    • 제8권3호
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    • pp.165-172
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    • 2019
  • Progressive collapse is one of the factors which if not predicted at the time of structure plan; its occurrence will lead to catastrophic damages. Through having a glance over important structures chronicles in the world, we will notice that the reason of their collapse is a minor damage in structure caused by an accident like a terrorist attack, smashing a vehicle, fire, gas explosion, construction flaws and its expanding. Progressive collapse includes expanding rudimentary rupture from one part to another which leads to total collapse of a structure or a major part it. This study examines the progressive collapse of a 5-story concrete building with three column eliminating scenarios, including the removal of the corner, side and middle columns with the ABAQUS software. Then the beams and the bottom of the concrete slab were reinforced by (reinforcement of carbon fiber reinforced polymer) FRP and then the structure was re-analyzed. The results of the analysis show that the reinforcement of carbon fiber reinforced polymer sheets is one of the effective ways to rehabilitate and reduce the progressive collapse in concrete structures.

Minimally invasive distal biceps tendon repair: a case series

  • Paul Jarrett;Anna-Lisa Baker
    • Clinics in Shoulder and Elbow
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    • 제26권3호
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    • pp.222-230
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    • 2023
  • Background: Distal biceps tendon repairs are commonly performed using open techniques. A minimally invasive distal biceps tendon repair technique using a speculum and hooded endoscope was developed to improve visualization, reduce soft-tissue dissection, and minimize complications. This paper describes the technique and reports the outcomes of 75 minimally invasive distal biceps tendon repairs. Methods: The operation reports and outcomes of 75 patients who underwent distal biceps tendon repair using this technique between 2011 and 2021 were retrospectively reviewed. Results: Median time to follow-up was 12 months (interquartile range [IQR], 6-56 months). Primary outcomes were function as measured by the Disabilities of Arm, Shoulder and Hand Score (DASH) questionnaire, and rate of complications. Median DASH score was 1.7 of 100 (IQR, 0-6.8). There were 2 of 75 (2.7%) re-ruptures of the distal tendon. There were no cases of vascular injury, proximal radius fracture, or posterior interosseous nerve, median, or ulnar nerve palsy. Conclusions: In this series, minimally invasive distal biceps repair was safe and effective with a low rate of major complications. Recovery of function, as indicated by low DASH scores, was satisfactory, and inconvenience during recovery was minimized. Level of evidence: IV.

회전근 개 파열의 관절경하 봉합에서 새로운 봉합 방법의 이용 (The Use of Arthroscopic UU Stich for Rotator Cuff Tear and Clinical Results)

  • 고상훈;신승명;최영진;차재룡;박한창
    • Clinics in Shoulder and Elbow
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    • 제14권1호
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    • pp.67-72
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    • 2011
  • 목적: 관절경하 회전근 개 봉합술은 여러 가지 봉합술이 알려져 있으나 저자들은 새로운 봉합법인 UU 봉합법의 임상적 결과와 해부학적 결과에 대하여 보고하고자 함이 목적이다. 대상 및 방법: 2009년 1월부터 2010년 5월까지 본원에서 회전근개 파열에 대해 UU 봉합술을 시행한 156명 (남자: 88명, 여자: 68명)의 환자를 대상으로 하였다. 평균 나이는 55세 (38~75세)였으며 추시 관찰 기간은 평균 12개월 (6~23개월)이었다. 결과의 판정은 최초 내원 시점과 6개월, 1년과 최종 추시에 시행한 ASES 점수 중 통증에 대한 VAS, 기능에 대한 일상 (ADL), UCLA 점수 및 KSS 점수로 평가하였다. 추시 기간 중 술 후 3개월에서 6개월 사이에 MRI 촬영에 동의하는 환자에 한하여 MRI를 시행하여 재파열의 유무를 확인하였다. 결과: 통증 지표인 VAS는 술 전 평균 7.0에서 술 후 평균 2.7로 감소하였다 (p<0.05). UCLA 및 KSS score는 각각 22.2에서 32.5로, 83.7에서 91.5로 증가하였으며 통계적으로 유의하였다 (p<0.05). 능동적 관절 운동 범위는 전방 굴곡이 평균 125도에서 175도, 측방 외 회전이 평균 38도에서 58도, 외전이 평균 104도에서 169도로 향상되었다. 전체 환자 156예 중 술 후 3개월에서 6개월 사이에 MRI 촬영에 동의하여 시행한 117예 (75%) 중 재파열은 총 4예 (3%)에서 관찰되었다. 결론: 회전근 개 파열의 관절경하 봉합술로 UU 봉합법은 우수한 임상결과와 낮은 재파열을 보이는 방법이다.

아킬레스건 파열의 수술적치료 -단단 봉합술 및 건외막피복술- (Surgical Treatment of Ruptured Achilles Tendon - End-to-end suture & Paratendinous wrapping)

  • 황득수;이원석;김경천
    • 대한정형외과스포츠의학회지
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    • 제1권2호
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    • pp.138-142
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    • 2002
  • 목적: 스포츠와관련된급성아킬레스건파열의직접봉합및건외막피복술의결과및예후를평가하였다. 대상및방법: 1997년부터2001년까지수술후1년이상추시가능했던21예를대상으로하였다. 30대가$55\%$로가장많았으며축구후에생긴파열이5예로가장많았고, 양측이간격을두고파열된경우가2예로확인되었다. 수술은수상후1주이내에시행하였으며, 단단봉합술후주위건외막조직을충분히봉합하여혈액순환을최대한유지한상태로봉합부를피복하였다. 수술후슬관절을25도굴곡, 족관절은족저굴곡된상태로6주간장하지석고고정후2주간격으로단하지석고고정및족관절첨족을기능적위치로전환하여10주째90도족배굴곡상태로회복시켰다. 결과는Hooker의기준을이용하여수술후평균28개월에평가하였다. 결과: 환측이정상측에비해발뒤꿈치-지면거리가평균0.7cm 감소하였고, 20회체중부하족저굴곡후에는0.8 cm 감소하였으며, 하퇴둘레는0.3 cm 감소하였고, 능동적운동범위는족배굴곡과족저굴곡이각각3도와5도가감소하였다. 수술결과는1 6예에서우수, 5예에서양호를보였으며재파열이나상처부위괴사및감염의후유증은없었다. 결론: 아킬레스건파열의단단봉합술후주위건외막조직의충분한피복봉합은건의치유와수술후유착방지에, 그리고수술후주기적족관절족배교정은잔여첨족변형의예방에좋은치료방법이다

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Successful Repair of Critical Tricuspid Regurgitation Secondary to a Ruptured Papillary Muscle in a Neonate

  • Min, Jooncheol;Kim, Eung Re;Yang, Chan Kyu;Kim, Woong-Han;Jang, Woo Sung;Cho, Sungkyu
    • Journal of Chest Surgery
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    • 제47권4호
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    • pp.398-401
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    • 2014
  • Severe tricuspid regurgitation resulting from a flail leaflet is a rare cause of neonatal cyanosis. We report a neonate with profound cyanosis and severe tricuspid regurgitation caused by a rupture of the papillary muscle supporting the anterior leaflet, without other structural heart defects. Ductal patency could not be established. The repair of the tricuspid valve was performed after initial stabilization by using extracorporeal membrane oxygenation.

외상에 의해 함입된 치아의 치료증례 (THE MANAGEMENT OF TRAUMATICALLY INTRUDED TEETH : A CASE REPORT)

  • 한영희;김광철
    • 대한소아치과학회지
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    • 제21권2호
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    • pp.518-524
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    • 1994
  • A traumatically intruded tooth is one that is forcefully and abruptly dispaced from its position into the surrounding alveolar bone. Although intrusion of permanent teeth is infrequent, the sequelae compromise the longevity of the tooth and often include pulp necrosis, internal and external root resorption, rupture of periodontal ligament and loss of marginal bone. The purpose of this study was to examine three common management techniques for traumatic intrusion, observation for re-eruption, surgical repositioning & fixation and orthodontic extrusion. In the recent, the accepted treatment was to allow the permanent teeth to reerupt spontaneously for 6-8 weeks. If this did not occur, orthodontic traction was applied. The pulpal status of the teeth was monitored and either calcium hydroxide therapy or conventional endodontics was instituted following pulpal necrosis depending on the maturity of the root end. Pulpectomy and a calcium hydroxide filling were also the treatment of choice if there was evidence of internal or external root resorption. This will reduce the chance of root resorption and provide a period of monitoring prior to a definitive root canal filling.

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A Comparison of Standard Methods for Evaluating the Water Resistance of Shell Fabrics

  • Kwon, Myoung-Sook;Nam, Youn-Ja
    • The International Journal of Costume Culture
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    • 제4권3호
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    • pp.241-248
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    • 2001
  • Re water resistance of shell fabrics intended for we in outdoor apparel was measured using three different standard test methods, ASTM D 751, hydrostatic resistance, procedure A(Mullen test -- with and without a fabric support) and Procedure B (Hydrostatic head test). A database of information on their water resistance performance was created. The data collected with different methods were correlated and the advantages and disadvantages of each method were compared. The Mullen test with a support appears to give higher and more favorable water resistance values on shell fabrics preventing fabric rupture during the test. The hydrostatic head test gave lower hydrostatic pressure values than those measured on the two Mullen tests. The Mullen test is recommended for testing the water resistance of fabrics that high a relatively high water resistance because the Mullen tester applies a wide range of pressure. The hydrostatic head test is recommended for testing the fabrics that have relatively low water resistance. The area of the fabric sample that is in contact with the water is smaller in the Mullen test, so higher pressure levels can be reached and more samples should probably be tested to get a representative value for each fabric types. Furthermore, the hydrostatic head test was deemed more repeatable than the Mullen tests in his study.

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배농후 기흉으로 오인된 공동성 폐농양 (Cavitary Lung Abscess Mistaken for Pneumothorax after Drainage of Pus)

  • 홍범기;장중현;김세규;김성규;이원영
    • Tuberculosis and Respiratory Diseases
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    • 제40권4호
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    • pp.449-453
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    • 1993
  • A 64-year-old male was admitted due to abruptly developed, severe dyspnea via local clinic. He had been a heavy smoker and alcoholic for a long time. Chest PA showed huge haziness in right upper lung field. Sputum culture for bacteriology was positive for Klebsiella pneumoniae. Immediately, appropriate antibiotics were administered and artificial ventilation was started. On 40th hospital day, simple chest roentgenogram taken due to sudden aggravated dyspnea showed marked hyperlucency in right upper lung field, suggestive of rupture of abscess cavity and resultant pneumothorax. At that time, chest tube was inserted but air leakage from the chest tube persisted. Chest CT scan taken after chest tube insertion showed the tube inserted into a thin-walled cavity in the above lesion. on 84th hospital day, right upper lobectomy with decortication was performed. Pathologically, cavittary lung abscess was diagnosed on the findings of partial re-epithelialization of ciliated columnar epithelium with severe pulmonary vascular occlusion and extensive fibrous pleural adhesions.

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Things That Might Occur When Objects Show Up: A Story of Life of Things and Their Ethics in Wordsworth's Early Works

  • Joo, Hyeuk Kyu
    • 영어영문학
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    • 제64권3호
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    • pp.383-401
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    • 2018
  • Wordsworth is a poet who thought seriously about problems of human's relation to the world as perceiving subjects. What he calls "the life of things" illustrates the enabling power of things and their vitalities at play in excess of human elements. Drawing on this, he provides insights into vital materialities that act upon, and are acted upon by, the collaborative circulation between human and nonhuman agency. This paper aims to reinvigorate the debate about Wordsworth's ethics of things in terms of such critical notions as things, objects, agency, and nonhumans in an attempt to explain what he envisions as new environmental realities built upon nonhierarchical, collaborative relationships between all participants. From the vantage point of things, we see clearly what has been neglected in the New Historicist critical method. It holds fast to the conceit that humans are entitled to have sole agential legitimacy, disregarding the vibrancy of things. They opt for the objectified matter or the (re)presented state of things. But in terms of Wordsworth's life of things, all participants have equal amounts of agency regardless of their forms and for that reason humans are expected to respect other things' sovereignty. Through encounters with things, things in their thingness show up for us, only to reveal the ineradicable rupture between themselves and their objectified forms.

고리 봉합법을 이용한 심부 수지 굴건 종지부에서의 건봉합 (Loop Suture Technique for Flexor Digitorum Profundus Tendon Repair in the Insertion Site)

  • 이규철;이동철;김진수;기세휘;노시영;양재원
    • Archives of Plastic Surgery
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    • 제37권5호
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    • pp.650-658
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    • 2010
  • Purpose: In the case of repair for far distal parts of FDP (Flexor digitorum profundus) division, the method of either pull-out suture or fixation of tendon to the distal phalanx is preferred. In this paper, the results of a modified loop suture technique used for the complete division of FDP from both zone 1a and distal parts of zone 1b in Moiemen classification are presented. Methods: From July 2006 to July 2009, the modified loop suture technique was used for the 10 cases of FDP in complete division from zone 1a and distal parts of zone 1b, especially where insertion sites were less than 1 cm apart from a tendon of a stump. In a suture technique, a loop is applied to each distal and proximal parts of tendon respectively. Core suture of 2-strand and epitendinous suture are done with PDS 4-0. Out of 10 patients, the study was done on 6 patients who were available for the followup. The average age of the patients was 49.1 years (in the range from 26 to 67). 5 males and 1 female patients were involved in this study. There were 3 cases with zone 1a and distal parts of zone 1b. The average distance to the distal tendon end was 0.6 cm. There were 5 cases underwent microsurgical repair where both artery and nerve divided. One case of only tendon displacement was presented. The dorsal protective splint was kept for 5 weeks on average. The results of the following tests were measured: active & passive range of motion, grip strength test, key pinch and pulp pinch test. Results: The follow-up period on average was 11 months, in the range from 2 to 20 months. There was no case of re-rupture, but tenolysis was performed in 1 cases. In all 6 cases, the average active range of motion of distal interphalangeal joint was 50.8 degree. The grip strength (ipsilateral/contralateral) was measured as 88.7% and the pulp pinch test was 79.2% as those of contralateral side. Flexion contracture was presented in 2 cases (15 degree on average) and there was no quadrigia effect found. Conclusion: Despite short length of tendon from the insertion site in FDS rupture in zone 1a and distal parts of zone 1b, sufficient functional recovery could be expected with the tendon to tendon repair using the modified loop suture technique.