탄성우주비행체의 준최적 출력 피이드백 제어기의 설계와 해석

길호진,위상규 한국항공우주학회 1986 한국항공우주학회 학술발표회 논문집 Vol.- No.-

진행된 류마토이드 관절염에서 시행한 Sauve-Kapandji 술식의 결과

길호진,정양국,신승한,김동현,김형진,강진우 대한수부외과학회 2014 대한수부외과학회지 Vol.19 No.4

Purpose: We evaluated the clinical and radiographic outcomes of the Sauve- Kapandji procedure for the treatment of advanced rheumatoid arthritis. Methods: Twenty-severn wrists in twenty-two patients were treated for advanced rheumatoid arthritis with Sauve-Kapandji procedure. Patients were evaluated in terms of wrist pain, bony union, instability of the ulnar proximal stump, ulnar stump pain, range of motion and other complications. Pain was evaluated using a visual analog scale. Radiographic evaluation included calcula- tion of the carpal translation index to assess the extent of ulnar translation of the carpus. Results: The average visual analogue scale score improved from 4±1.85 preop- eratively to 0.78±0.91 at the last follow-up (p=0.003). Bone unions in distal radioulnar joint were obtained in all 22 patients, 27 wrists at mean 10.74 weeks (range, 6-28 weeks) after operation. The supination/pronation range of motion was changed from 55/50 degrees preoperatively to 79/73 degrees at postopera- tive 6 months follow up (p=0.32). The mean carpal translation index did not change after the operation. Conclusion: The Sauve-Kapandji procedure is a reliable methods of relieving pain, preserving range of motion (supination/pronation) and preventing ulnar translation of the carpus in managements of the severely destroyed distal radioulnar joints in rhematoid arthritis. 목적: 진행된류마토이드관절염에서시행한Sauve-Kapandji 술식의결과를평가하여그유용성을알아보고자하였다. 방법: 2001년 1월부터 2013년 6월까지 Sauve-Kapandji 술식을 시행받은 22명의 27 수근관절을 대상으로 하였다. 완관절 통증, 유합기간, 근위 척골 절제단의 불안정성 및 척골 절제단부 통증, 완관절 운동범위와 이외의 합병증에 대해 조사하였으며 수근골의 척골 측 전위 정도를 carpal translation index를 통해 평가하였다. 결과: 평균 visual analogue scale score는 수술 전 4±1.85에서 최종 추시 시 0.78±0.91로 호전되었다(p=0.003). 모든 예에서 원위요척관절이 유합되었고, 평균 유합기간은 수술 후 10.74주 였다. 회외전/회내전 운동범위는 수술 전55/50에서 수술 후 6개월째 79° /73° 로 호전되었다(p=0.32). 수술 전후 carpal translation index는 유의한 변화는없었다. 결론: 심한 관절 파괴와 동통이 있는 류마토이드 관절염 환자의 원위요척관절 관절염에 Sauve-Kapandji 술식을 시행하는 것이 기능을 보존하면서 증상을 경감시키고 변형을 방지하는 좋은 치료 방법이라고 생각된다.

유의어 Say와 Tell에 대한 분석: 고등학교 교과서와 평가, 학생을 중심으로

길호진,이경남 한국중앙영어영문학회 2011 영어영문학연구 Vol.53 No.4

The purpose of this study is as follows: First, it aims to investigate the differences between the words say and tell in terms of their semantic and syntactic properties. Second, to look into what kinds of syntactic structures are used in high school English textbooks and the SAT (for university admission) reading section. Third, to evaluate how well high school students understand the properties of these two words and use them. With regard to the first purpose, several references and Collins COBUILD Advanced Learner’s English Dictionary are referred to. For the second one, 17 high school English textbooks and SAT reading sections from 5 different years (totalling 165 questions) are analyzed through a simple concordance program. For the third, 111 female high school students were given three kinds of tests, which consist of 50 questions. The results show the following: First, say and tell have different distribution and usage even though they are likely to be treated as synonyms. Second, some syntactic structures are overused in the high school English textbooks and the SAT reading section. This may inhibit the students’ acquisition of the diverse syntactic structures of these two words. Third, although students’ understanding levels of both these words are similar, their capabilities of using each word are significantly different; they show more accuracy with tell.

중등도 무지외반증에서 시행한 단축 스카프 절골술

권순용,길호진,정진화,Kwon, Soon-Yong,Gil, Ho-Jin,Chung, Jin-Wha 대한족부족관절학회 2012 대한족부족관절학회지 Vol.16 No.4

Purpose: The aim of this study was to evaluate the radiographic and clinical results of short scarf osteotomy that has minimized longitudinal cut for moderate hallux valgus. Materials and Methods: Total 12 patients (12 feet) were reviewed by medical records and radiographs. All patients were female and the mean age at the time of operation was 41.5 years. The mean followup time was 21.2 months. We modified original scarf osteotomy by shortening the longitudinal cut to 15~20 mm in length. Additionally, Akin osteotomy of the first proximal phalanx was done in 7 feet and Weil osteotomy of the second metatarsal was done in 4 feet. First-second intermetatarsal and hallux valgus angles were analyzed radiographically before and after the operation. And the clinical result was assessed by AOFAS (American Orthopaedic Foot and Ankle Society) hallux score. Results: First-second intermetatarsal and hallux valgus angles were reduced from the mean preoperative values of $14.6^{\circ}$ and $32.8^{\circ}$ to $6.5^{\circ}$ and $11.2^{\circ}$, respectively. The mean AOFAS hallux score was increased from 52.4 points preoperatively to 88.2 points at followup. Three complications were found: metatarsal fracture during the operation, painful scar around second metatarsal head after Weil osteotomy and postoperative neuralgia. There was no transfer metatarsalgia or recurrence of hallux valgus during followup. Conclusion: Short scarf osteotomy would be an effective surgical procedure for moderate hallux valgus with the benefits of minimized soft tissue dissection and stable fixation.

절개 변형한 척측 구형성 부목을 이용한 제5중수골경부 골절의 치료

정양국,길호진,신승한,김동현,강진우,전상현 대한수부외과학회 2015 대한수부외과학회지 Vol.20 No.4

목적: 전통적인 척측 구형성 부목(ulnar gutter splint)의 문제점을 보완한 절개 변형한 척측 구형성 부목(modified split ulnar gutter splint)을 이용하여 보존적으로 치료한 제5중수골 경부골절 환자의 방사선학적 결과를 분석하고자 하였다. 방법: 2008년 12월부터 2014년 5월까지 본원에서 치료 받은 17명, 18예를 대상으로 하여 방사선학적 결과를 분석하였다. 수술 전, 직후 및 최종 추시의 사면 및 측면 방사선 사진에서 각형성을 측정하여 교정각 및 고정의 안정성을 평가하였다. 평균 고정 기간은 4.9주(범위, 4-7주)였고, 평균 추시 기간은 17.1 주(범위, 8-80주)였다. 결과: 전체 17명, 18예에서 골유합이 관찰되었고, 사면 방사선 사진상 정복 전 각변형이 평균 27 에서 정복 후 평균 17 로 교정되었고, 측면 방사선 사진상에서도 21 에서 10 도로 교정되어 만족할 만한 결과를 보였다(p<0.001). 최종 추시시의 사면 방사선 사진상의 교정각의 변화는 평균 3 , 측면 방사선 사진상 1 로 우수한 골절 고정력을 보였다. 결론: 제5중수골 경부 골절 치료로 영상 증폭 관찰하에서 도수 정복 후 절개 변형한 척측 구형성 부목(modified split ulnar gutter splint) 고정술은 고정력이 우수하여 보존적 치료의 적응증을 넓힐 수 있을 것으로 생각된다. Purpose: To evaluate radiological results of the modified split ulnar gutter splint for the fifth metacarpal neck fracture. Methods: Between December 2008 and May 2014, 17 patients (18 cases) with fifth metacarpal neck fractures were managed with our modified split ulnar gutter splint. Radiological outcomes in oblique and lateral radiographs were evaluated. Mean immobilization period was 4.9 weeks (range, 4-7) weeks. Mean follow-up period was 17.1 week (range, 8-80 weeks). Results: All of 18 fractures were completely united. The average of prereduction dorsal angulation, 27° in the oblique radiographs and 21° in the lateral radiographs, were corrected to 17° in the oblique radiographs and 10° in the lateral radiographs after closed reduction. At the last follow-up, they were 14° and 11° respectively. The mean difference of angulation deformity between in postreduction and final follow-up radiograms were 3° in the oblique radiographs and 1° in the lateral radiographs, which was not significantly different. Conclusion: Immobilization using modified split ulnar gutter splint will be a reliable option for the fifth metacarpal neck fractures in selected patients, which will avoid the surgeries.

척골 단축술 후 원위 요척 관절 관절염의 발생에 영향을 미치는 요인

김철진,길호진,정양국,신승한,김동현,박준수,최현철 대한수부외과학회 2014 대한수부외과학회지 Vol.19 No.2

Purpose: Ulnar shortening osteotmy is a common operation for the treatmentof ulnar impaction syndrome. The purpose of this study was to evaluate factorsthat may affect the occurrence of distal radioulnar joint (DRUJ) arthritis afterulnar shortening osteotomy. Methods: From September 2005 to August 2012, we performed 81 ulnar shorteningosteotomies for ulnar impaction syndrome, and evaluated occurrence ordeterioration of DRUJ arthritis in 58 patients with a minimum follow-up of 1year. We analyzed potential factors that may affect the occurrence of DRUJarthritis, such as, age, sex, hand dominance, pre- and postoperative ulnar variance,preexisting DRUJ arthritis, types of radial sigmoid notch, amount of ulnarshortening, and follow up period. Results: DRUJ arthritis occurred or deteriorated in 32 out of the 58 patients. Regression analysis indicated a significant correlation between the type of radialsigmoid notch (type 1) and DRUJ arthritis. Other factors were not found to becorrelated with occurrence or deterioration of DRUJ arthritis. Conclusion: This study suggests that patients with type 1 radial sigmoid notch(ulnar inclination of more than 10 degrees) are more likely to develop DRUJarthritis after ulnar shortening osteotomy. 목적: 척골감입증후군의 치료로 시행하는 척골 단축술 후 원위 요척 관절 관절염의 발생에 영향을 미치는 요인에 대하여 알아보고자 하였다. 방법: 2005년 9월부터 2012년 8월까지 척골감입증후군에 대하여 척골 단축술을 시행 받은 81예 중 1년 이상 추시된 58예를 대상으로 하였다. 나이, 성별, 우세손 여부, 수술 전 척골변이 정도, 수술 전 원위 요척 관절의 관절염 유무, 요골 S절흔 형태, 척골 단축 정도, 수술 후 척골변이 정도, 추시 기간이 관절염의 진행이나 발생에 미치는 영향을 분석하였다. 결과: 58예 중 32예에서 수술 전의 관절염이 진행되거나 수술 후 새롭게 발생하였다. 회귀 분석에서 요골 S 절흔의 형태가 관절염의 진행이나 발생과 유의한 상관성을 보였다. 다른 인자들은 관절염의 진행이나 발생에 유의한 상관성을 보이지 않았다. 결론: 10° 이상 척측 경사를 보이는 요골 S 절흔을 가지는 환자는 척골 단축술 후 원위 요척 관절의 관절염이 발생할 가능성이 있으므로 주의를 요한다.

1, 2-구획간 상지대 동맥 유경 혈관화 골 이식술과 무두 압박나사 고정술로 치료한 주상골 불유합

김동현,정양국,신승한,길호진,강진우,조한석 대한수부외과학회 2014 대한수부외과학회지 Vol.19 No.4

Purpose: The purpose of this study was to evaluate the clinical results of scaphoid nonunions treated with 1, 2-intercompartment supraretinacular artery (ICSRA) pedicled vascularized bone grafting (VBG) and headless com- pression screw fixation. Methods: Since August 1, 2005, 11 scaphoid nonunions with avascular necrosis or bone marrow edema of proximal fragments were managed with 1, 2-ICSRA pedicled VBG combined with headless compression screw fixation. The mean age was 37.1 years (range, 21-66 years). 8 patients had avascular necrosis (AVN) of proximal fragments and 3 patients had bone marrow edema in proximal frag- ments. Serial radiographic evaluations were performed in every 4-8 weeks for bone union and follow up computed tomography scanning were checked in 8 patients. Results: Bone unions were obtained in all 11 patients at 4.9 months (range, 3-9 months) after operation. At last follow up, the average range of motion was 82.5% and the grip power was 84.1% compared to the contralateral side. The mean New York Orthopaedic Hospital wrist score at last follow up was 83.2 (range, 58.1-93.3). Conclusion: Combined 1, 2-ICSRA pedicled VBG and headless compression screw fixation were reliable methods for managements of scaphoid nonunions even with AVN at proximal fragments. 목적: 1, 2-구획간 상지대 동맥(1, 2-intercompartmental supraretinacular artery) 유경 혈관화 생골 이식술과 무두 압박나사 고정술로 치료한 주상골 불유합 환자의 치료 결과를 분석하고자 하였다. 방법: 2005년 8월 이후 주상골 불유합에 대하여 1, 2-구획간 상지대 동맥 유경 혈관화 골 이식술과 무두 압박나사 고정술을 시행한 11명의 환자를 대상으로 하였다. 자기공명영상 검사상 8예에서 근위골편에 무혈성 괴사가 있었고, 3예에서골수 내 부종변화가 있었다. 4-8주 간격으로 단순방사선사진 촬영을 시행하고, 8예에서는 전산화단층촬영을 통해 골유합의 진행을 평가하였다. 결과: 최종 추시상, 전예에서 골유합을 얻었으며 유합까지의 평균기간은 4.9개월(범위, 3-9개월)이 소요되었다. 운동범위는 평균 82.5%로 회복되었고, 파악력은 84.1%로 회복되었다. 최종 추시 시 New York Orthopaedic Hospital wrist score는 평균 83.2점(범위, 58-93점)으로 평가되었다. 결론: 1, 2-구획간 상지대 동맥 유경 혈관화 골 이식술과 무두 압박나사 고정술은 주상골 불유합에서 근위골편의 무혈성 괴사를 동반한 경우에도 골유합을 얻을 수 있는 유용한 술식으로 생각된다.

원위 경골 골절의 임상양상 및 최소 침습적 금속판 고정술의 결과

김원유,지종훈,권오수,박상은,김영율,길호진,정재중,Kim, Weon-Yoo,Ji, Jong-Hun,Kwon, Oh-Soo,Park, Sang-Eun,Kim, Young-Yul,Kil, Ho-Jin,Jeong, Jae-Jung 대한족부족관절학회 2012 대한족부족관절학회지 Vol.16 No.2

Purpose: The purpose of this study is to analyze the clinical features of distal tibia fractures and to evaluate the treatment outcomes of minimally invasive plate osteosynthesis (MIPO). Materials and Methods: From January 2004 to December 2009, 84 cases of 81 patients treated with plate fixation for distal tibia fracture were enrolled in this retrospective review. We investigated age, sex, injury mechanism, fracture patterns, and complications, and the clinical features were analyzed. To evaluate the treatment outcomes of MIPO, we divided into two groups. MIPO group consisted of 55 patients were treated with MIPO technique and conventional group consisted of 18 patients were treated with open reduction and internal fixation with conventional anterolateral plating. The results were compared between two groups by assessing bony union time, operation time, amount of blood loss, range of ankle motion, clinical score by American Orthopaedic Foot and Ankle Society (AOFAS) score, and post-operative complications. Results: The mean age of 81 patients with distal tibia fracture was 54.8 years. According to AO classification, A1:2:3 were 16, 20, 16 patients, B1:2:3 were 2, 8, 7, C1:2:3 were 1, 3, 11 patients. According to injury mechanism, slip down injury was patients, traffic accident was 26, fall from height injury was 14 patients respectively. The type A fractures were lower energy trauma and more older patients. The type C fractures were higher energy trauma and younger patients. MIPO group was better than conventional group in operative time, blood loss, bony union time, and ankle joint motion. In complications, MIPO group showed no nonunion and infection, one malunion, one skin necrosis, nine skin irritations, and one screw breakage. Conventional group showed two nonunion, four infections, two skin necrosis, and one metal failure. Conclusion: Distal tibial fractures caused by low energy trauma were on the increase. Minimal invasive plate osteosynthesis was shorter bony union time and operation time, less blood loss, and larger ankle motions than conventional open reduction and plate fixation.

한국인의 3차원 상완골 모델의 분석과 골수강내 중심선의 분석

지종훈(Jong-Hun Ji),곽대순(Dae-Sun Kwak),남용석(Young-Seok Nam),한승호(Seung-Ho Han),박상은(Sang-Eun Park),길호진(Ho-Jin Gil) 대한견주관절의학회 2013 대한견주관절학회 학술대회논문집 Vol.2013 No.3