• Title/Summary/Keyword: 수술시기

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Operative Treatment of the Displaced Midshaft Clavicle Fracture Using Precontoured Locking Compression Plate (Precontoured Locking Compression Plate를 이용한 전위성 쇄골 간부 골절의 수술적 치료)

  • Kim, Jeong Woo;Kang, Hong Je;No, Sung Hyun
    • Clinics in Shoulder and Elbow
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    • v.15 no.2
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    • pp.117-122
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    • 2012
  • Purpose: To assess the effectiveness of internal fixation using a precontoured locking compression plate for the treatment of the displaced clavicle fracture by analyzing both radiological and clinical outcomes. Materials and Methods: We reviewed 34 cases of displaced clavicle shaft fracture treated by internal fixation using precontoured locking compression plates between May 2009 and February 2010. Radiological outcomes were analized on the basis of bone union and the differences between the time for bone union depending on sex and age. Clinical outcomes were analyzed on the basis of quick DASH Scores and the differences in the range of motion of the affected shoulder compared to the contralateral shoulder. Results: In the radiological evaluation, all fractures showed bone union, and the average time for bone union was 12.3 weeks, without delayed unions. Time for bone union did not differ significantly with respect to sex and age (p=0.87). In the clinical evaluation, the average final quick DASH Score was 23.5 (range, 12~42). At final follow up, the range of motion after bone union in the affected shoulder was not significantly different from that of the contralateral shoulder (p=0.69). Conclusion: The internal fixation achieved using precontoured locking compression plate in displaced clavicle shaft fracture showed effective bone union and can be considered as a reliable method with fine clinical results showing early range of motion at the shoulder joint.

Arthroscopic Reconstruction of Posterior Cruciate Ligament with Achilles Tendon Allograft (동종 이식 아킬레스 건을 이용한 관절경적 후방 십자 인대 재건술)

  • Kim, Kyung Taek;Sohn, Sung Keun;Lee, Dae Hee
    • Journal of the Korean Arthroscopy Society
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    • v.3 no.1
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    • pp.9-16
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    • 1999
  • Purpose : We have evaluated the outcome of the operative treatment of PCL rupture using the achilles tendon allograft. Materials and Methods : A retrospective study was completed for 30-PCL reconstruction cases, using the achilles tendon allograft from september 1996 to march 1998. There was an average follow up of 24 months, with range of 12 to 50 months. Results : The active range of motion was improved postoperatively. The Lysholm Knee Score was improved from a mean of 54 points preoperatively to 87 points postoerative 18 months. The "Cybex 340 isometric test" revealed satisfactory results compared with autograft. Conclusions : Use of allograft for recostruction of the PCL is an attractive option because it precludes the harvesting of autogenous tissue in a knee that is already at risk for patellofemoral and tibiofemoral osteoarthrosis.

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The outcomes of retinopathy of prematurity in relation to duration of low dose oxygen therapy (저농도 산소의 사용기간에 따른 미숙아 망막병증의 진행과 예후에 관한 연구)

  • Lee, Pil Sang;Choe, Jae Won;Lee, Sang Geel
    • Clinical and Experimental Pediatrics
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    • v.52 no.1
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    • pp.50-55
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    • 2009
  • Purpose : This study aimed to determine the influence of low-dose oxygen ($FiO_2$ <25%) therapy through nasal cannulae on the progress and prognosis of retinopathy of prematurity (ROP) as well as methods of preventing ROP. Methods : Our subjects comprised premature infants (gestation period <37 weeks; birth weight <1,750 g) born in Daegu Fatima Hospital between February 1, 2001 and January 31, 2006. We retrospectively reviewed and analyzed the medical records of 273 patients who were available for eye examination and follow up over 6 months. Results : The factors maximally influencing the occurrence of ROP were low gestation age and low birth weight. We observed that the incidence of ROP increased with the increasing duration of low-dose oxygen therapy. ROP onset was delayed during ongoing oxygen therapy; however, rapid progression of ROP occurred after the discontinuation of oxygen therapy among premature infants up to the prethreshold stage. Conclusion : To prevent of occurrence of severe ROP and its rapid progression, the period of low-dose oxygen therapy needs to be shortened. Moreover, frequent eye examinations should be performed after the discontinuation of oxygen therapy.

Acute Epididymitis in Two Children with Henoch-Sch$\ddot{o}$nlein Purpura (Henoch-Sch$\ddot{o}$nlein 자반증에서 동반된 급성 부고환염)

  • Lee, Kyoung-Ah;Park, Se-Jin;Shin, Jae-Il
    • Childhood Kidney Diseases
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    • v.15 no.2
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    • pp.184-190
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    • 2011
  • Scrotal involvement has been reported from 2% to 38% of males with Henoch-Sch$\ddot{o}$nlein purpura (HSP). It may present before the rash occurs or even long time after it has disappeared. Scrotal involvement of HSP usually results in pain, tenderness, swelling or discoloration of scrotum. Scrotal pain sometimes mimics testicular torsion to various degrees, which can be followed by unnecessary operation. In our 2 cases, one was a 5-year and 11-month-old boy who came to our emergency department due to scrotal pain before the diagnosis of HSP, and the other was a 5-year and 1-month-old boy who came to the outpatient clinic due to scrotal pain after the resolution of HSP about 1 month before the visit. We performed Doppler ultrasonography (USG) to evaluate the acute scrotal pain in the two boys. On Doppler USG, epididymis showed increased blood flow, and testis showed normal blood flow. These findings enabled the diagnosis of acute epididymitis and excluded testicular torsion. Epididymitis was improved by conservative management including shortterm steroid therapy within 5 days. It is important to perform adequate evaluation with tools such as Doppler USG in the early course of acute scrotum of HSP, to avoid unnecessary scrotal exploration.

Clinical Outcome and Follow-up of Neonatal Hydronephrosis Diagnosed Antenatally (산전 진찰에서 진단된 신생아 수신증에 대한 추적 관찰)

  • Park, Su-Eun;Kim, Su-Yung
    • Childhood Kidney Diseases
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    • v.2 no.2
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    • pp.161-168
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    • 1998
  • Purpose : Lots of congenital anomalies of urinary tract including hydronephrosis are detected in fetus and neworn by popular use of prenatal ultrasonography. But there are little data available in Korea about natural course of hydronephrosis diagnosed antenatally by ultrasonography. So we intended to help management of these patients by analizing the follow up data of the neonates with hydronephrosis diagnosed antenatally. Methods : We evaluated 22 patients with neonatal hydronephrosis(33 renal units) who were diagnosed prenatally and confirmed postnatally. Especially patients with suspected ureteropelvic junction obstruction were followed regulary with renal ultrasonography and diuretic renography for 8-24 months. Results : 1) The etiologies of neonatal hydronephrosis diagnosed prenatally were suspected ureteropelvic junction obstruction($69.9\%$), vesicoureteral reflux($15.1\%$), primary megaureter($3.0\%$), double ureter with ureterocele($3.0\%$), ureteral stricture($3.0\%$), multicystic dysplastic kidney(3.0$\%$), and ureterovesical junction obstruction(3.0$\%$). 2) The follow up results of 23 renal units of suspected ureteropelvic junction obsruction: Except 4 renal units with palpable abdominal mass, of the remained 19 renal units, 14 units($73.6\%$) were improved spontaneously, 3 units($15.7\%$) remained stable, only2 units($10.5\%$) were aggravated. Conclusion : We concluded that in most cases of hydronephrosis there is no need for immediate surgery, and that nonoperative approach, using serial ultrasonography and diuretic renogram, is safe management of neonatal hydronephrosis diagnosed anteratally.

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The Diagnosis and Treatment of Anterior Openbite Malocclusion (전치부 개방교합의 진단과 치료)

  • Chang, Young-Il;Moon, Seong-Cheol
    • The korean journal of orthodontics
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    • v.28 no.6 s.71
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    • pp.893-904
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    • 1998
  • There are varieties of severe malocclusions, which can be treated orthodontically, but with a great deal of effort. Anterior openbite, in particular, is one malocclusion thought to be more difficult to treat, and therefore, most of them have to be corrected by means of surgical intervention. To solve these problems, numerous studies pertinent to treatment modalities have been introduced with controversies on the effectiveness of treatment. Suggested treatment modalities for anterior openbite are based directly or indirectly on the neuromuscular and morphological features and on the etiologic and/or the environmental factors. Even though the vertical relationship of the face is increased due to the growth variation, the normal occlusal relationship can be achieved by the adequate dentoalveolar compensatory mechanism, but in the case of inadequate or negative dentoalveolar compensation, openbite is likely to be present. If the skeletal dysplasia is too severe to be solved by orthodontic treatment alone, combined treatment with surgery should be done to restore the function and the esthetics of the orofacial complex. In many cases, however, orthodontic alteration of the dentition pertinent to the given skeletal pattern with the proper diagnosis and treatment planning can bring satisfactory results. The treatment changes with the Multiloop Edgewise Archwire(MEAW) therapy occurred mainly in the dentoalveolar region and showed a considerable similarity to the natural dentoalveolar compensatory mechanism. In other words, the MEAW technique allows orthodontists to produce the natural dentoalveolar compensation orthodontically. Even if an openbite is corrected by the orthodontic dentoalveolar compensation suitable for the skeletal pattern, relapse may still occur by the persisting etiologic factors which originally prohibited the natural dentoalveolar compensation. The etiologic factors should be determined at the time of initial diagnosis and should be controlled during treatment and retention.

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A new protocol of the sliding mechanics with Micro-Implant Anchorage(M.I.A.) (Micro-Implant Anchorage(MIA)를 이용한 Sliding mechancis)

  • Park, Hyo-Sang
    • The korean journal of orthodontics
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    • v.30 no.6 s.83
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    • pp.677-685
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    • 2000
  • Anchorage plays an important role in orthodontic treatment. Because of limited anchorage Potential and acceptance problems of intra- or extraoral anchorage aids, endosseous implants have been suggested and used. However, clinicians have hesitated to use endosseous implants as orthodontic anchorage because of limited implantation space, high cost, and long waiting period for osseointegration. Titanium miniscrews and microscrews were introduced as orthodontic anchorage due to their many advantages such as ease of insertion and removal, low cost, immediate loading, and their ability to be placed in any area of the alveolar bone. In this study, a skeletal Class II Patient was treated with sliding mechanics using M.I.A.(micro-implant anchorage). The maxillary micro-implants provide anchorage for retraction of the upper anterior teeth. The mandibular micro-implants induced uprighting and intrusion of the lower molars. The upward and forward movement of the chin followed. This resulted in an increase of the SNB angle, and a decrease of the ANB angle. The micro-implants remained firm and stable throughout treatment. This new approach to the treatment of skeletal Class II malocclusion has the following characteristics . Independent of Patient cooperation. . Shorter treatment time due to the simultaneous retraction of the six anterior teeth . Early change of facial Profile motivating greater cooperation from patients These results indicate that the M.I.A. can be used as anchorage for orthodontic treatment. The use of M.I.A. with sliding mechanics in the treatment of skeletal Class II malocclusion increases the treatment simplicity and efficiency.

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Comparative Study of Prolonged Preservation Methods in Rabbit Heart for Transplantation (이식을 위한 가토심장의 장기 보존방법에 관한 비교 연구)

  • Jo, Hyeong-Gon;Kim, Su-Hyeon;Kim, Song-Myeong
    • Journal of Chest Surgery
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    • v.30 no.1
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    • pp.1-10
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    • 1997
  • The successful cardiac transplantation depends partly on the donor heart preservation by a solution that will ensure recovery of myocardial function. The purpose of this study was to perform the evaluation of various preservation solutions and to accumulate the data on the requisites for ideal preservation solution. The experimental setup was the constant pressure Langendorffs perfusion system. Isolated rabbit hearts were perfused for 20minutes with unarm Krebs-Henseleit solution, stored for 4 hours in cold preservation solution after cardioplegia, and then were reperfused for 20minutes. The 4 experimental groups were prepared Hartmann's solution group (group 1, control), modified Euro-collins solution group(group II. MEC), modified University of Wisconsin group (group n, MUW), and CK solution(made by the author) group (group W, CK). The parameters for assessing the preservation ability were levels of enzymes in freezed myocardial tissues (lactate, creatine kinase-MB and adenosine deaminase), coronary flow. left ventricular developing pressure and dpldt. In conclusion, the ability of preservation for isolated rabbit heart was excellent in CK solution and modified University of Wisconsin solution, and poor in modified Euro-collins solution, compared with Hartmann solution. CK solution has low potassium concentrations(34.2mEq/L) and includes various substrates to be salutary on myocardial preservation. This fact may indicates the necessity of further refinements in selection or composition of electrolytes and substrates.

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Measurement and Analysis of Low Flow in the Cheonggecheon Watershed (청계천 유역 갈수량 측정 및 분석)

  • Noh, Seong Jin;Kim, Hyeon Jun;Jang, Cheol Hee;Kim, Dong Pil;Hong, Il Pyo
    • Proceedings of the Korea Water Resources Association Conference
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    • 2004.05b
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    • pp.1067-1071
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    • 2004
  • 도시 유역의 물순환 특성을 종합적으로 이해하기 위해서는 갈수량 자료의 구축이 필수적이다. 하지만 지금까지의 인구는 주로 치수분야에 한정되어 대부분의 자료 또한 홍수기에 대해서만 자료가 구축되어 있으며 상대적으로 갈수기에 내한 자료와 관련 연구는 부족한 편이다. 본 연구에서는 청계천 유역의 기존 수문자료를 이용하여 유역의 유출 특성을 분석하고 갈수량을 측정하여 청계천 유역의 물순환 특성을 파악하기 위한 기초자료를 구축하였다. 청계천은 서울의 서북쪽에 위치한 인왕산과 북한산의 남쪽 기슭, 남산의 북쪽 기슭에서 시작하여 서에서 동으로 종로, 세운상가, 동대문 등 서울의 도심부를 흐르는 유로연장 13.75 km, 유역 면적 $50.96 km^2$의 도시하천으로 중량천의 제1지류인 지방2급 하천이며, 정릉친, 성북천을 제1지류, 월곡천을 제2지류로 포함한다. 청계천은 도시화로 인해 1950년대부터 1970년대까지 점차 복개되었다가 2003년 7월부터 5.9 km의 본류구간에 대한 복원공사가 진행 중이다. 청계천은 홍수기 이후 유량이 급격히 줄어 11월 이후에는 다음 홍수기까지 강바닥이 완전히 들어나는 일종의 간헐천으로 홍수기를 제외한 시기의 자료는 전무한 실정이다. 본 연구에서는 유역내 8개의 모니터링 지점을 선정하여 2003년 9월 이후, 월 2회 이상 갈수량 자료를 현장 측정${\cdot}$분석하였다. 청계천 유역은 복원공사 완공 후에는 유역의 물순환 특성이 대폭 바뀔 것이 예상되는 지역으로 본 연구에서 구축된 갈수량 자료는 청계천 유역의 물순환계 변화를 분석하고 건전한 물순환 체계의 유지${\cdot}$관리를 위한 기본 자료가 될 것으로 판단된다., 바늘꽃과, 속새과, 십자화과, 장미과, 사초과, 삼과, 현삼과, 닭의장풀과가 각 1종씩 조사되었으며, 조사지점(II)인 1km지점에서는 15과 26종으로, 벼과가 4종, 마디풀과, 국화과가 3종, 버드나무과, 십자화과, 콩과가 2종씩, 바늘꽃과, 속새과, 자라풀과, 장미과, 사초과, 백합과, 현삼과, 골풀과, 닭의장풀과가 각 1종씩으로, 조사지점( I )보다 좀 더 많은 종이 분포하는 것으로 조사되었다. 또한 어류는 조사지점( I )에서 3회에 걸쳐 총 396개체가 채집되어 3목 8과 21종이었다. 이 중 한국 고유종은 11종이었고, 외래 어종은 검정우럭과 2종이 조사되었으며, Zacco platypus(피라미), Zacco temmincki(갈겨니), Acheilongnathus koreanus(칼납자루), Odontobutis platycephala(동사리), Coreoleuciscus splendidus(쉬리) 순으로 분포하고 있었고, Acheilognathus signifer(묵납자루)는 댐 건설 전에는 많이 분포하였으나 현장조사에서 서식을 확인 할 수 언어 개체수의 큰 감소내지 멸종된 것으로 추정되었다.에서 동시에 시행하였다. 수술 후 1년 내 시행한 심초음파에서 모든 환아에서 단지 경등도 이하의 승모판 폐쇄 부전 소견을 보였다. 수술 후 조기 사망은 없었으며, 합병증으로는 유미흉이 한 명에서 있었다. 술 후 10개월째 허혈성 확장성 심근증이 호전되지 않아 Dor 술식을 시행한 후 사망한 예를 제외한 나머지 6명은 특이 증상 없이 정상 생활 중이다 결론: 좌관상동맥 페동맥이상 기시증은 드물기는 하나, 영유아기에 심근경색 및 허혈성 심근증 또는 선천성 승모판 폐쇄 부전등을 초래하는 심각한 선천성 심질환이다

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Studies on Early Detection of the Chemical Hepatocarcinogenesis in Newborn Rats (신생랫드를 이용한 화학적 간암발생의 조기진단에 관한 연구)

  • 장민열;김형진;이영순
    • Journal of Food Hygiene and Safety
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    • v.6 no.1
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    • pp.13-26
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    • 1991
  • This study was performed for searching for non-hepatectomy medium-term bioassay model by using newborn female rats. Newborn female Sprague-Dawley rats (1 day old) were given an intraperitoneal injection of 150 mg/kg of diethylnitrosamine (DENA). After three weeks, all rats were weaned and divided into three groups. Group 1 were fed on diets containing 0.01% 2-acetylaminofluorene (2-AAF) as a promoter for three weeks. Group 2 were given 0.05% phenobarbital (PB) in drinking water as a promoter for 8 weeks. Group 3 was control group. The autopsy was carried out at 4 weeks and 8 weeks after weaning. Preneoplastic lesions were indentified with immunohistochemical staining for glutathione S-transferase placental form (GST-P). In liver weight to body weight ratios, group 2 showed significant difference from group 1 (p<0.001) at 4 weeks after weaning. Group 1 and group 2 showed significant difference from group 3 at 8 weeks after weaning (p<0.0I, p<0.001), respectively. In quantitative analysis for GST-P positive lesion area by using Image Analyzer, group 1 and group 2 represented significant difference in comparison with group 3 at early 4 weeks after weaning (p

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