• Journal of the Korean Orthopaedic Association
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• v.53 no.6
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• pp.459-465
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• 2018

Of the many factors that affect the clinical outcomes of orthopedic surgery, the surgical procedure is the most important. Robotics have been developed to perform the surgical procedures more accurately and consistently. Robotic surgical procedures in the orthopedic field were developed 20 years ago. Some designs of surgical robots have disappeared due to practical problems and complications, and an another design of surgical robots is emerging. To date, the use of robot surgery in arthroplasty is still controversial in terms of the clinical outcomes, practicality, and cost-effectiveness, even though it has been reported to be effective in the alignment and positioning of components in the field of artificial joints. Early robotic surgery was based mainly on active robot surgery according to the scheduled operation without the intervention of the operator. Recently the semi-active system of robotic surgery has been introduced. In a semi-active system, the robot constrains the surgeon to a haptic boundary defined by the computer based on the 3-dimensional imaging preoperative plan, and the operator can change the preoperative plan through real-time feedback during operation.

• Journal of Chest Surgery
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• v.25 no.7
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• pp.745-749
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• 1992

A 17-year-old male patient of aortic stenoinsufficiency with a small aortic annulus underwent aortic valve replacement[St. Jude Medical valve 21mm] with Rittenhouse-Man-ouguian procedure[patch enlargement of the area of the noncoronary sinus and anterior mitral leaflet] The used patch was made from tubular dacron graft[the longitudinal length was 35mm, the width 20mm]. The length of incision into anterior mitral leaflet was 10mm and the aortic annulus was enlarged in 10mm, The patient was evaluated with two-dimensional echocardiography at 4 month after operation and the result was excellent.

• Journal of Chest Surgery
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• v.24 no.7
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• pp.663-668
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• 1991

To evaluate risks, complications and mortality of reoperations on heart valve prosthesis, we reviewed clinical records of 53 patients who underwent reoperation because of prosthetic valve failure[PVF], from Jan 1959 through Jun. 1991. They had undergone 48 mitral, 10 aortic valve rereplacement Primary tissue failure was the main cause of reoperation : it occurred in 51 valves at a mean postoperative interval of 58 months. Calcification and collagen disruption of prosthesis were main causes of primary tissue failure in macro and micropathology, In 3 failing mechanical prostheses, paravalvular leak was in 2 cases, another one case had the thrombi at the hinge portion. If conditions such as emergency operation with or without endocarditis, thromboembolism and advanced NYHA functional class are prevented, we think that reoperative valve replacement has similar morbidity and mortality to initial valve replacement surgery. But our sturdy represents higher mortality [22.6%] because of late surgical intervention failing the prevention of conditions leading to myocardial damage. In conclusion if the tearing, calcification, and a new murmur were detected the early reoperation should be considered to increase late survival.

• Journal of the KSME
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• v.50 no.2
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• pp.28-35
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• 2010

최근 학문간의 장벽이 무너지고 융합학문이 큰 이슈가 되면서 다양한 결합이 시도되고 있다. 의학분야중 특히 정형외과 분야는 기계공학의 고체 및 바이오공학과의 융합연구로 매우 매력도가 높은 분야이다. 이 글을 통해 정형외과 분야 중 슬관절 분야가 기계공학도에게 왜 흥미로울 수밖에 없는가에 대해서 몇 가지 내용들을 소개하고자 한다.

• Proceedings of the KTCVS Conference
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• 1995.10a
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• pp.70-70
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• 1995

• Proceedings of the KTCVS Conference
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• 1995.10a
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• pp.81-81
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• 1995

• Proceedings of the KTCVS Conference
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• 1995.10a
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• pp.27-27
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• 1995

• Proceedings of the KTCVS Conference
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• 1998.10a
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• pp.92-92
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• 1998

• Proceedings of the KTCVS Conference
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• 1998.10a
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• pp.89-89
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• 1998

• Proceedings of the KTCVS Conference
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• 1993.06a
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• pp.68-68
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• 1993