• Archives of Reconstructive Microsurgery
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• 제16권2호
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• pp.100-107
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• 2007

Treatment of giant cell tumor of distal radius can be treated in several ways according to the aggressiveness of the tumor. But the management of giant cell tumor involving juxta-articular portion has always been a difficult problem. In some giant cell tumors with bony destruction, a wide segmental resection may be needed for preventing to recur. But a main problem is preserving of bony continuity in bony defect as well as preservation of joint function. We have attempted to overcome these problems by using a microvascular technique to transfer the fibula with peroneal vascular pedicle or anterior tibial vessel as living bone graft. From April 1984 to July 2005, we performed the reconstruction of wide bone defect after segmental resection of giant cell tumor in 14 cases, using Vascularized Fibular Graft, which occur at the distal radius. VFG with peroneal vascular pedicle was in 8 cases and anterior tibial vessel was 6 cases. Recipient artery was radial artery in all cases. Method of connection was end to end anastomosis in 11 cases, and end to side in 3 cases. An average follow-up was 6 years 6 months, average bone defect after wide segmental resection of lesion was 6.8 cm. All cases revealed good bony union in average 6.5 months, and we got the wide range of motion of wrist joint without recurrence and serious complications. Grafted bone was all alive. In functional analysis, there was good in 7 cases, fair in 4 cases and bad in 1 case. Pain was decreased in all cases but there was nearly normal joint in only 4 cases. Vascularized fibular graft around wrist joint provided good functional restoration without local recurrence.

• 대한한방부인과학회지
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• 제18권1호
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• pp.207-217
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• 2005

Purpose : With the development of society, traffic accident(TA) rate is increasing accordingly. And the number of women in pregnancy who are damaged by TA is increasing as more women are involved in economical and social activities. TA victim in pregnancy cannot get proper treatment(Tx) in western medicine. Oriental medicine Tx is noted as alternative in treating TA victims recently. The main purpose of this clinical study is to make a survey of effective way of the oriental gynecological Tx about TA victim in pregnancy. Methods : The patient in this case, 28-year-old, was admitted for 14days(27th/May/2004 - 9th/June/2004) to cure severe neck pain and limitaion of cervical ROM(range of motion) occured from TA on the 4th week of pregnancy. This patient was treated with the acupunture, herbal medicine and physical treatment. Result and Conclusion : The symptoms of patient in this case are remarkable alleviated. And we think that the TA victims in pregnancy can be managed effectively by oriental gynecological Tx due to consider preservation of fetus and pregnant woman. After this, further study, approach and case will be needed about oriental gynecological Tx of TA victims in pregnancy.

• 보존과학회지
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• 제37권4호
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• pp.362-369
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• 2021

In museums, exhibition content focuses mostly on cultural heritage's historical values and functions, but doing so tends to limit visitors' interest and immersion. To counter this limitation, the study developed an experiential media art exhibition fusing bronze mirrors' traditional production technology and modern conservation science. First, for the exhibition system, scientific cultural heritage contents were projected on the three-dimensional (3D) printed bronze mirror through interactions between motion recognition digital information display (DID) and the projector. Then, a scenario of 17 missions in four stages (production process, corrosion mechanism, scientific analysis and diagnosis, and conservation treatment and restoration) was prepared according to the temporal spectrum. Additionally, various media art effects and interaction technologies were developed, so visitors could understand and become immersed in bronze mirrors' scientific content. A user test was evaluated through the living lab, reflecting generally high levels of satisfaction (90.2 points). Qualitative evaluation was generally positive, with comments such as "easy to understand and useful as the esoteric science exhibition was combined with media art" (16.7%), "wonderful and interesting" (11.7%), and "firsthand experience was good" (9.2%). By combining an esoteric science exhibition centered on principles and theories with visual media art and by developing an immersive directing method to provide high-level exhibition technology, the exhibition induced visitors' active participation. This exhibition's content can become an important platform for expanding universal museum exhibitions on archaeology, history, and art into conservation science.

• 대한관절경학회지
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• 제17권1호
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• pp.24-30
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• 2013

목적: 슬관절의 후방십자인대 파열 시 잔존하는 절단단 또는 이완된 인대를 유지하면서 관절경하 후-후 삼각기법과 단일절개 횡경골 접근법을 이용하여 4겹의 자가 슬괵건을 사용해 손상된 후방십자인대 보강술을 시행한 결과를 후향적으로 분석해 보고자 하였다. 대상 및 방법: 2002년 1월부터 2009년 12월까지 후방십자인대 파열로 진단되어서 4겹의 자가 슬괵건과 후-후 삼각기법과 단일절개 횡경골 접근법을 이용한 보강술을 시행한 환자 중에서 최소 2년 이상 추시가 가능하였던 32예를 대상으로 하였다. 평균 추시는 5년 5개월(범위: 2-7.9)이었다. 수술 시 연령은 평균 35.2세이었다. 운동 가능 범위, 후방 전위 검사, Telos stress 방사선 검사, Lysholm knee score, Tegner activity score, International Knee Documentation Committee (IKDC)의 판정 기준을 이용하여서 술후 기능 평가, 2차적 관절경 검사 등을 시행하여 주관적 및 객관적 지표로 삼았다. 결과: 최종 추시 시에서 후방 스트레스 방사선 사진상 통계학적으로 의미 있는 감소 소견이 관찰되었다(p<0.05). 최종 추시에서 IKDC grade는 Group A가 18예, Group B가 11예, Group C가 3예이었고, Group D는 한 예도 없었으며, 각각 통계학적 의미가 있는 호전을 보였다(p<0.05). 결론: 만성 단독 후방십자인대의 파열에서 관절경하 후-후 삼각기법과 단일절개 횡경골 접근법을 이용하여 4겹의 자가 슬괵건을 사용해 손상된 후방십자인대 보강술은 양호한 슬관절의 안정성과 기능 회복을 얻을 수 있는 좋은 수술 방법으로 사료된다.

• 한국과학교육학회지
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• 제40권4호
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• pp.375-383
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• 2020

이 연구에서는 증강현실을 활용한 다중 표상 학습 전략이 학생들의 개념 이해도, 학업 성취도, 과학 수업에 대한 즐거움에 미치는 영향을 조사하였다. 남녀 공학 중학교 2학년 학생 136명을 처치 집단과 통제집단으로 무선 배치하였다. 학생들은 네 차시 동안 물질의 특성과 관련한 입자 개념을 학습하였다. 이때 처치 집단의 학생들에게는 증강현실이 제공하는 표상들 사이의 연계와 통합을 촉진할 수 있는 다중 표상 학습 전략을 개발하여 적용하였다. 이원 공변량 분석 결과, 개념 이해도, 과학 수업에 대한 즐거움 검사에 대한 처치 집단의 점수는 학생들의 사전 성취 수준과 무관하게 통제 집단보다 유의미하게 높았다. 개념 이해도 검사의 하위 개념 중 입자의 보존에 대해서는 유의미한 차이가 나타났으나, 분포 및 운동에 대해서는 유의미한 차이가 나타나지 않았다. 학업 성취도 측면에서는 사전 성취 수준과 유의미한 상호작용 효과가 나타났다. 이때 하위권 학생들의 성취도는 유의미하게 향상되었으나 상위권 학생들에게는 유의미한 효과가 나타나지 않았다. 연구 결과를 바탕으로 과학 교수학습에서 증강현실의 효과적인 활용을 위한 교육적 시사점을 논의하였다.

• Archives of Reconstructive Microsurgery
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• 제19권1호
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• pp.12-20
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• 2010

Purpose: Industrial punch accidents involving fingers cause segmental injuries to tendons and neurovascular bundles. Although multiple-level segmental amputations are not replanted to regain function, most patients with an amputated finger want to undergo replantation for cosmetic as much as functional reason. The authors describe four cases of digital amputation by an industrial punch that involved the reinstatement of the amputated finger involving a joint and neurovascular bundle. Amputated segments were replanted to restore amputated surfaces and distal segments. Methods: A single institution retrospective review was performed. Inclusion criteria of punch injuries requiring replantation were applied to patients of all demographic background. Injury extent (size, tissue involvement), operative intervention, pre- and postoperative hand function were recorded. Result: Four cases of amputations were treated at our institute from 2004 to 2008 from industrial punch machine injury. Average patient age was 32.5 years (25~39 years) and there were three males and one female. Sizes of amputated segments ranged from $1.0{\times}1.0{\times}1.2\;cm^3$ to $3{\times}1.5{\times}1.6\;cm^3$. Tenorrhaphy was conducted after fixing fractured bone of the amputated segments with K-wire. Proximal and distal arteries and veins were repaired using the through & through method. The average follow-up period was thirteen months (2~26 months), and all replanted cases survived. Osteomyelitis occurred in one case, skin grafting after debridement was performed in two cases. Because joints were damaged in all four cases, active ranges of motion were much limited. However, a secondary tendon graft enhanced digit function in two cases. The two-point discrimination test showed normal values for both static and dynamic tests for three cases and 9 mm and 15 mm by dynamic and static testing, respectively, in one case. Conclusion: Though amputations from industrial punch machines are technically challenging to replant, our experience has shown it to be a valid therapy. In cases involving punch machine injury, if an amputated segment is available, the authors recommend that replantation be considered for preservation of finger length, joint mobility, and overall functional recovery of the hand.

• 한국과학교육학회지
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• 제2권1호
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• pp.31-51
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• 1980

In order to research into the devel of the concept of movement and speed in our own way and compare with the Piaget's method, and then find out the formative period of such development, we have put the 192 primary school children as the model and obtained the following results. 1. As their grade upyards, all the experimental subjects showed the gradual progress generally regardless of sex or regions, while only the relative speed showed irregular progress. 2. There was no experimental subject which showed any remarkable sexual characteristics. But in the relative movement, the lower grade boys and higher grade girls made progress. In the subjects of circulation movement, intuition of speed, relative speed and speed of simultaneous movement, the boys marked better progress, whilst the girls were advanced a little in the speed of continuous movement with, different distance and time. 3. There was no conspicuous difference between the urban and rural areas, except a slight tendency that the urban children made better progress in the change of progressing direction, native continuous procedure of periodical movement, travelling road, and the speed of continuous movement with different distance and time whereas the rural children were more advanced in the relative movement, relative speed and intuition of speed. But it should be 'taken into consideration that the rural regions in our case were relatively developed in comparison with the traditional rural communities, which may explain about little regional difference. 4. Comparing our research results with the Piaget's theory, we have reached below results. Our research reports that the formative period of the conception of the problems of diverse progressing direction and a native continuous procedure of periodical movement was simultaneous, at the Piagetian level(at the fourth grade) which coincides with Piagetian theory. The travelling road should be made up a little lower at 2A/2B according' to Piagetian Level, whereas it was formed at the 4th grade as shown in our previous research. Intuition of speed should belong to the prior stage to concrete operation, but our research shows it was formed late at the 4th grade. Composition of displacement was made at the 6th grade, and it was almost equal to the first stage of formal operation(3A). But in the subjects of relative movement relative speed, the speed of continuous movement with different distance and time, relation and preservation of invariable speed, and accelerated motion, even 6th grade children marked a poor record. Summed up, the procedure conception as a basic movement conception coincides with the Piagetion level. But as for speed intuition, relative speed and speed fixation, it was Jar behind Piagetian level. Therefore it is required that we have to concentrate on the systematic training in these parts on the spot.

• 대한족부족관절학회지
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• 제20권4호
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• pp.152-157
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• 2016

Purpose: To evaluate the effect of shortening scarf osteotomy on pain relief and range of motion (ROM) of the first metatarsophalangeal joint in hallux rigidus patients. Materials and Methods: Twenty-three cases of 19 patients who had been treated with shortening scarf osteotomy for the hallux rigidus between January 2007 and December 2013 were reviewed. The mean follow-up period was 21.4 months, and the mean age was 59.2 years. The first metatarsal bone was shortened until the ROM of the first metatarsophalangeal joint was greater than $80^{\circ}$ or $40^{\circ}$ of dorsiflexion. The length shortened by scarf osteotomy was measured. The authors also measured and compared the joint interval difference of the standing foot using an anteroposterior radiography. Moreover, the difference of ROM of the first metatarsophalangeal joint between the preoperative and final follow-up periods was also compared. The clinical results were evaluated and compared using the American Orthopaedic Foot and Ankle Society (AOFAS) scoring system and visual analogue scale (VAS) score. Results: The mean shortening length was about 6.5 mm (range, 4~9 mm). The joint space has been increased to 1.8 mm, and the ROM of the first metatarsophalangeal joint has also been increased to $18.4^{\circ}$ after the operation. In three cases, the postoperative ROM has been decreased to less $10^{\circ}$. The AOFAS score has been improved from 41.7 (range, 32~55) to 86.2 (range, 65~95), and the VAS score was also decreased from 3.7 (range, 3~5) to 1.3 (range, 0~3). Two cases have shown no decrease in pain even after the operation. Conclusion: Shortening scarf osteotomy was found to decrease joint pain by decompressing the pressure of the first metatarsophalangeal joint. This osteotomy also helped improve the ROM of the first metatarsophalangeal joint. Shortening scarf osteotomy can be considered one of the effective methods for joint preservation.

• 한국보육학회지
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• 제18권4호
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• pp.65-89
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• 2018

본 연구의 목적은 연령별 누리과정 교사용지도서의 과학교육관련 활동에서 제시하고 있는 과학개념 및 교수학습방법을 분석하는 것이다. 연구자료는 교사용지도서의 과학교육관련 활동 772개이며, 과학개념은 물리과학(힘과 운동, 물리적구조, 전기와 자기, 빛과 그림자, 소리의 성질), 화학(물질의 특성, 물질의 반응), 생명과학(조직적 구조, 성장과 변화, 유전과 진화, 동식물과 인간의 관계), 지구과학(지구시스템의 상호작용, 지구시스템의 구조, 우주), 공학(설계된 세상, 공학 설계, 공학 및 기술과 사회), 생태학(환경보존) 영역에서 제시하는 개념을 토대로 분석하였다. 교수학습방법은 대소집단활동 유형, 자유선택활동 유형별로 분석하였다. 과학개념은 3-5세 공통으로 공학, 화학, 생명과학 영역이 주로 제시되고 있었으며, 물리과학은 전 연령에서 낮은 분포로 제시되고 있었다. 과학개념은 주로 '동식물과 자연', '생활도구', '환경과 생활', '봄 여름 가을 겨울'의 생활주제에서 많이 나타났다. 교수학습방법은 3세, 4세는 자유선택활동(과학영역, 실외자유선택활동, 미술영역, 수조작영역 중심), 5세는 대소집단활동(요리, 이야기나누기, 음악활동)이 많이 사용되는 것으로 나타났다.

• 대한관절경학회지
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• 제16권2호
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• pp.107-113
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• 2012

목적: 아킬레스건과 전경골건 동종건을 이용하여 인대 잔여물을 최대한 보존하면서 단일 절개, 단일 다발 후방십자인대 재건술 시행 후 결과를 비교하였다. 대상 및 방법: 후방십자인대 재건술을 받은 26명이 포함되었다. 남자 21명, 여자 5명이었으며 평균 나이는 32세였다. 사용된 이식건은 신선 동결 아킬레스건(제I군, 14예), 전경골건(제II군, 12예)이었으며, 단일 절개, 단일 다발로 인대 잔여물을 최대한 보존하면서 관절경적 후방십자인대 재건술을 시행하였다. 임상평가는 관절운동범위, 후방전위검사, Lysholm 점수, Tegner 활동지수, International Knee Documentation Committee (IKDC) 등급 및 후방전위 긴장방사선 검사를 이용하여 전위 정도를 평가하였다. 평균 추시기간은 21.6개월(12-40개월)이었다. 동반손상은 내측측부인대 파열이 5예 있었으나 모두 보존치료로 호전되었다. 결과: 최종 추시 시 관절운동범위는 24예는 정상이었으나 2예에서 $10^{\circ}$ 미만의 굴곡장애가 있었다. 수술 전 후방전위검사에서 grade II가 17예, grade III가 9예 있었으나, 최종 추시 시 정상 13예, grade I 7예, grade II 6예이었다. Lysholm 점수는 수술 전 평균 62점에서 최종 추시 시 90점으로 호전되었으며, Tegner 활동지수는 수술 전 평균 3.5에서 최종 추시 시 5.6으로 호전되었다. IKDC 등급은 최종 추시 시 grade A 3예, grade B 17예, grade C 6예이었다. 후방전위 긴장방사선 소견상 수술 전 후방전위는 평균 12 mm에서 수술 후 4.5 mm로 호전되었다. 양군 간에 임상적 결과에는 통계적으로 차이가 없었다. 합병증으로 아킬레스건을 사용한 군에서 건-골 이행부의 파열이 2예 있었다. 결론: 동종 아킬레스건과 전경골건을 이용하여 단일 절개, 단일 다발 후방십자인대 재건술은 양군 간에 임상적으로 차이 없이 좋은 결과를 얻었으나 아킬레스건 사용군에서 재파열이 더 많았으며, 더 많은 증례로 장기간의 추시가 필요할 것으로 사료된다.