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증등도 및 중증 무지 외반증 치료에서 원위부 갈매기형 절골술의 적용
윤준오,이호승,류석우,이기원,오세관,Yoon, Jun-O,Lee, Ho-Seung,Leu, Suk-Woo,Lee, Ki-Won,Oh, Se-Kwan 대한족부족관절학회 2003 대한족부족관절학회지 Vol.7 No.2
Purpose: We assessed the treatment result of the distal chevron osteotomy in the patients with moderate to severe hallux valgus. Materials and Methods: In a total of 28 cases of hallux valgus in 20 patients, underwent distal chevron osteotomy between July 1999 and February 2001, were enrolled in this study. 21 cases were moderate and 7 cases were severe. The preoperative average hallux valgus angle and 1st-2nd intermetatarsal angle of the two groups were $31.5^{\circ}$, $15.8^{\circ}$ in moderate cases and $44.1^{\circ}$, $17.3^{\circ}$ in severe cases, respectively. Radiologic evaluation was done preoperatively, postoperatively and on the final follow-up visit using weight-bearing radiographic imaging to determine the hallux valgus angle and 1st-2nd intermetatarsal angle. Results: Radiographic evaluation revealed hallux valgus angle and 1st-2nd intermetatarsal angle in moderate cases to be $13.0^{\circ}$, $11.3^{\circ}$ (postoperatively and in severe cases $15.6^{\circ}$, $10.9^{\circ}C$, postoperatively. On final follow up, the results were $14.5^{\circ}$, $11.6^{\circ}$ in moderate cases and $18.3^{\circ}$, $11.9^{\circ}$ in severe cases, respectively. Conclusion: Distal chevron osteotomy can be usefully applied to the treatment of moderate to severe hallux valgus.
볼록 사각형의 Siebeck-Marden의 정리에 대한 연구
윤준오,이준희,황석훈,조영민 한국과학영재교육학회 2023 과학영재교육 Vol.15 No.1
This study was based on the research results conducted as an R&E project for gifted students with financial support from the Korea Foundation for the Advancement of Science and Creativity. In this study, we extended Siebeck-Marden’s Theorem, which holds for triangles, into arbitrary convex quadrilaterals. Through this study, the following results were obtained. First, we found and proved the ratio in which the inellipse of a parallelogram divides each side. Second, we discovered Siebeck-Marden’s Theorem for exellipses. We discovered Siebeck-Marden’s Theorem regarding the location of the foci of an exellipse of a triangle. Third, we defined and proved Siebeck-Marden’s Theorem of arbitrary convex quadrilaterals. We defined Siebeck-Marden’s Theorem regarding the location of the foci of an inellipse of an arbitrary convex quadrilateral. In this study, we extended Siebeck-Marden’s Theorem from triangles to convex quadrilaterals. It is expected to contribute to the development of mathematics by enhancing mathematical concepts and properties, just as we extended Siebeck-Marden’s Theorem to arbitrary convex quadrilaterals. Furthermore, this study is expected to encourage further research on the inellipse of convex quadrilaterals. 본 연구는 한국과학창의재단 과학영재 창의연구(R&E)에서 수행한 연구 결과를 바탕으로 이루어졌다. 본 연구에서는 삼각형에서 성립하는 Siebeck-Marden의정리를 확장하여 볼록 사각형의 Siebeck-Marden의 정리를 정의하고 이에 대해 탐구하였다. 본 연구를 통해다음과 같은 연구 결과를 얻을 수 있었다. 첫 번째, 평행사변형의 내접 타원이 각 변을 분할하는 비를 발견하고 이를 증명하였다. 두 번째, 방접 타원에 대한 삼각형의 Siebeck-Marden의 정리를 발견하였다. 즉, 삼각형의방접 타원의 두 초점의 위치와 관련된 삼각형의Siebeck-Marden의 정리를 발견하고 이를 증명하였다. 세 번째, 임의의 볼록 사각형의 Siebeck-Marden의 정리를 정의하고 이를 증명하였다. 즉, 볼록 사각형의 내접 타원의 두 초점의 위치와 관련된 볼록 사각형의Siebeck-Marden의 정리를 정의하였으며 이를 방접 타원, 타원과 평행사변형의 기하적 성질 등을 이용하여논리적으로 증명하였다. 본 연구에서는 삼각형의Siebeck-Marden의 정리를 볼록 사각형으로 확장하였다. 이렇듯 수학적 개념 및 성질을 더 넓은 영역으로 확장해 나가는 것은 수학의 발전에 기여할 것이라 기대한다. 본 연구의 결과를 통해 볼록 사각형의 내접 타원에대한 연구가 활발히 진행되길 기대한다.
한상훈,박정형,윤준오 大韓成形外科學會 1994 Archives of Plastic Surgery Vol.21 No.4
Brachymetatarsia, a relatively uncommon foot deformity, is defined as abnormaly short or hypoplastic metatarsal. It is thought to be produced due to premature closure of the epiphyseal plate at the distal aspect of the metatarsal. The exact etiology of the premature closure is unknown but it may be congenital, traumatic, iatrogenic or environmental. Though the signs and symptoms vary according to age, the presenting probslem is mostly aesthetic. So the lengthening of the abnormaly short metatarsal is the treatment of choice. We experienced two different methods for the surgical correction of the brachymetatarsia. Procedures were performed for the metatarsal lengthening. For 7 cases, we osteotomized the short metatarsal horizontally and interposed autogenous iliac bone graft. In the next 3 cases, we applied llizarov callus distraction technique for the simultaneous metatrsal and soft tissue lengthening, the device was Orthofix dynamic axial fixation system. Postoperative result showed excellent outcome in aesthetic as well as functional aspect in both techniques. Each procedure has their own advantages and disadvantages, so we would like to present the actual case history, surgical technique, perioperative technique in detail.
이명종,김광국,이상암,마효일,윤준오 울산대학교 의과대학 1993 울산의대학술지 Vol.2 No.1
This is a report of familial carpal tunnel syndrome(CTS) occuring in four members of two generations of a Korean family. One of those with CTS had surgical release and its pathologic finding was nonspecific fibrotic change. The age of those affected by CTS ranged form 35 to 76 years of age. Family pedigree suggests an autosomal dominant gene. This is belived to be the first case report of familial carpal tunnel syndrome in Korea.