• The Journal of Korean Orthopaedic Ultrasound Society
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• v.5 no.1
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• pp.50-59
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• 2012

In the domain of orthopaedic surgery, application of regional nerve block for surgery or pain control in upper and lower extremities has been increased. By performing regional block of popliteal (sciatic), femoral, proximal saphenous nerve and ankle block under guidance of ultrasound, not only the safety, but also success rate of the procedure has increased, and amount of local anesthetics could be used less, too. Since the perineural single injection or continuous catheterization of diluted local anesthetics was performed more precisely and easily by the guidance of ultrasound, postoperative pain could be controlled without complications of PCA such as nausea, vomiting, etc. We will discuss about this ultrasound guided regional nerve block.

• Journal of Chest Surgery
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• v.33 no.7
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• pp.576-580
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• 2000

Transmycardial laser revascularization has made its position as a sole therapy for patients with chronic angina nonamenable to maximal medical therapy, percutaneous transluminal coronary angioplasty, and coronary artery bypass grafting. We report three cases of transmyocardial laser revascularization as a sole therapy for patients with recurrent angina after CABG.

• Journal of Chest Surgery
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• v.39 no.9 s.266
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• pp.710-713
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• 2006

The incidence of reoperative coronary artery bypass grafting (CABG) has increased because of the rise in the number of patients who have undergone initial CABG. In addition, recent technological advances have resulted in widespread application of off pump coronary artery bypass (OPCAB). We report a case of redo OPCAB through thoracotomy and small laparotomy in 76-year-old man with recurrent unstable angina.

• Journal of the Korean Arthroscopy Society
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• v.15 no.1
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• pp.36-41
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• 2011

Treatment options are limited for young, meniscal-deficient patients with pain. This patient population is not age appropriate for total joint replacement, but the loss of the meniscus leaves them at significant risk for the development of osteoarthritis. One increasingly popular option is the use of allograft meniscal transplantation. However, many questions still surround allograft meniscus transplantation. Furthermore, most reports in the literature on the results of meniscal transplantation describe small case series using clinical outcome measures and/or incomplete direct evaluation of the meniscus. Therefore, the results of meniscal allograft transplantation have been difficult to interpret and compare due to many confounding variables. In this study, we reviewed the current research of concerns on the results of meniscal allograft transplantation.

• Journal of the Korean Arthroscopy Society
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• v.16 no.2
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• pp.185-189
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• 2012

The objective of this case report was to evaluate meniscal suturing for a young patient with a chronic radial tear of the incomplete discoid lateral meniscus. The patient underwent saucerization in conjunction with repair of the displaced radial tear of the discoid meniscus. Six-months after surgery, arthroscopic examination showed the repaired meniscus to be healed well with good continuity. Repair of radial tears, even chronic tears, should be considered for young patients with torn discoid lateral menisci.

• The korean journal of orthodontics
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• v.26 no.3
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• pp.241-246
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• 1996

The chin is one of the factors which express human character, and appropriately protruding chin is very important to harmonious profile, the purpose of genioplasty is to reshape the chin and improve the facial esthetics which is one of the purposes of orthodontic treatment. It can be classified as augmentation genioplasty which enlarge the chin vertico-horizontally and reduction genioplasty which smallen it. The examples to apply this procedure are as follows. 1. advancement of retruded chin 2. reduction of chin prominence 3. control of chin vertical dimension 4. correction of asymmetry

• Transactions of the KSME C: Technology and Education
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• v.5 no.1
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• pp.53-61
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• 2017

In this review paper, the trend for optical technology is described as the development of mechanical industries in the $21^{st}$ century. Optical technology has been essential in various industries such as mechanical, electronic industries as the convergence technology. Based on the roadmap of optical science and technology, 12 working groups are categorized as the technical point of view and most of them are closely related to mechanical industries. Especially, solid-state lighting, optical metrology and industrial laser processing are important technologies in precision engineering and manufacturing. This paper introduces these optical technologies and their technological issues to look into the development trends and expectation.

• Clinics in Shoulder and Elbow
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• v.10 no.2
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• pp.246-250
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• 2007

Total elbow arthroplasty is a relatively rare procedure compared with total knee or total hip arthroplasty. Total elbow arthroplasty for bony ankylosis is even rarer, and the results are often unsatisfactory. We report a patient who gained good mobility of the elbow after total elbow arthroplasty for the treatment of fractured arthrodesis site with which the patient had lived with for 12 years.

• Journal of the Korean Arthroscopy Society
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• v.14 no.3
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• pp.175-179
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• 2010

동종 반월상 연골 이식술은 불가피하게 반월상 연골이 소실된 환자에서 증상을 호전을 위한 매우 효과적인 치료이다. 관절연골의 보호 효과 등 장기적인 결과에 대해서는 아직까지는 많은 연구가 필요한 상태이지만, 이러한 환자에서 반월상 연골의 기능을 회복시키기 대안이 많아 점차 널리 시행되는 추세이다. 이식된 반월상 연골이 제 기능을 하기 위해서는 적절한 수술방법을 통하여 반월상 연골 이식물을 정확한 위치에 이식을 하는 것은 필수적일 것이다. 여러 저자들 마다 서로 다른 다양한 반월상 연골 이식술의 방법들을 사용하고 있지만, 어떤 방법을 선택하던지 간에 이식된 반월상 연골의 전각 및 후각을 해부학적인 위치에 견고하게 고정을 하는 것이 매우 중요하다. 술자의 선호도에 따라 다양한 방법중의 하나를 선택을 할 수 있지만, 어떤 방법이든 수술 술기상의 어려움이 있으므로, 철저한 준비와 노력이 필요할 것이다. 본 종설에서는 반월상 연골 이식술 중 개방적 방법에 대한 간단한 소개와 함께 저자들이 사용하는 관절경을 이용한 수술방법을 정리하였다.

• Journal of Chest Surgery
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• v.29 no.8
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• pp.875-882
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• 1996

Multlvalvular heart surgery was performed In 78 cases, in the Department of Thoracic & Cardiovascu far Surgery of Chonbuk national University Hospital from november 1983 to March 1994. There Where 31 men and 47 women. whose ranged from 14 to 63 years. The causes of the valvular lesions were 57 rheumatic origin, 18 degenerative, 1 previous endocarditls, 1 prosthetic valve mal-function. There were 25 double valve replacement with or wit out tricuspid valve repair, i M VR and aortic valve repair, 18 MVR and tricuspid valve repair, 1 MVR and aortic and tricuspid valve repair, 10 AVR and mi- tral valve repair, 1 AVR and tricuspid valve repair, 8 mitral aortic valve repair, 13 mitral and tricuspid valve repair. They were improved mean New York Heart Association functional cldss, from 2.72% 121 Early deaths were 5 cases(6.4%). The cause of death wet'e low cArdiac output syndrome. veritricular tachycardia, massive bleeding and cerebral thromboembolism. All the survivors belonged to New York Heart Association functional class I or ll at discharge. The patients who had had valve replacement operation were medicated with warfarin to maintain the level of 30∼ 50% of normal prothrombin time. During follow-up(93.6%, mean 49.9 months), 2 late deaths were developed. One was due to intracranial hemorrhage and the other congestive heart failure. The pre-operative New York Heart Association Functional class IV was statistically sig ificant operat- ive risk factors(p< 0.05).