Eagle씨 증후군의 치험례

오승환,이상철,윤옥병,지유진,김여갑,류동목 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.3

Eagle's syndrome is the term given to symtomatic elogation of the styloid process or mineralization of the stylohyoid or stylomandibular ligament. Since ossification of stylohyoid ligament at cadeva was fist described by De Manchetics in 1652 and Weinlecher described clinical symptom which produced by elongated styloid process and osteotomy of styloid process in 1872, Clinical symptom which include sensation of a foreign body on the pharynx, dysphagai, dysphonia, referred pain, and mouth opening disturbance was termed by Eagle as Eagle's syndrome. then, case reports of Eagle's syndrome are presented. in these cases, the patient's chief complaints included periauricular radiating pain, mouth opening disturbance, foreign body sensation, dysphagia, tenderness on the neck. Through vairous X-ray examination and palpation of tonsillar fossa, elongted styloid process were confirmed. Under the general anesthesia there were successfully removed out via transoral approach technique, described by Eagle. after resented styloid process, they were freed from the symptoms without further complication. Therefor we reported these cases treated by surgical resection of styloid process with good results.

SHS 공정에 의한 텅스텐 산화물로부터 고순도 텅스텐분말 제조

이승영,윤여훈,이종현,원창환 대한금속재료학회 2003 대한금속·재료학회지 Vol.41 No.1

99% Pure tungsten powders were prepared by self-propagating high temperature synthesis (SHS) process from a mixture of ammonium paratungsten(APT) and Mg powders. The concurrently formed MgO in the product was leached with an HCI solution. The optimum molar ratio of APT to Mg is 1:46 and the compaction pressures range from 2000 to 4000 psi. The propagation velocity and combustion temperature increased, as the compact diameter increased. The weight change and elongation of the SHS product were affected by compaction pressure on the green pellet. The tungsten product had a purity of 99% and mean size of 2∼3 μm.

점막유표피암종의 치험례

신민철,윤옥병,오승환,김여갑,이상철,신민철 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.1

Mucoepidermoid carcinomas, first reported by Volkman(1895), form 6% to 9% of all salivary tumors. Two thirds affecting the parotid gland and the remaining third, the minor glands. As we could know from its name, mucoepidermoid carcinomas originate from ductal epithelium including squamous, mucous-secreting, and undifferentiated intermediate cells. Histologically, it is classified as well-differentiated (low grade), moderately-differentiated(intermediate grade), and poorly-differentiated (high grade) types and the treatment method and prognosis are influenced from its histological grade. We have experienced two cases of mucoepidermoid carcinoma treated surgically with good results and now would like to report these with review of literatures.

Helicobacter pylori와 대장균의 Shuttle Vector 개발

조명제,이우곤,이상룡,김경희,안영숙,김성희,김현주,류복덕,최여정,윤영혜,백승철,전영석,이광호 경상대학교 유전공학연구소 1997 遺傳工學硏究所報 Vol.16 No.-

In this study, a vehicle vector using cryptic plasmids was constructed for gene transfer in Helicobacter pylori. pHP51(3.9 kb) and pHP489(1.2 kb) were selected for constructing vectors from cryptic plasmid of H. pylori isolates in Korea. The HindⅢ-digestedDNA fragment(1.2kb) of pHP489 and 1.6kb DNA fragment of pHP51 were ligated with a kanamycin resistance gene(aph3'-Ⅲ) from C. jejuni to produce the recombinant plasmids pHP489K and pHP51K, respectively. Transformation frequency of pHP51K by electroporation was low. But pHP489K could be effectively transformed into various H. pylori strains. In order to design an intermdiate vehicle vector for gene transfer into H. pylori, pBlueHP489K was prepared by recloning pHP489K DNA into pBluescript and pTZ19R vector. This vector permitted the DNA fragment containing pHP489 sequence, aph3'-Ⅲ, and cloned DNA to be cut and self-ligated in the SacⅠ site after cloning. ureA and ureB gene were inserted into pBlueHP489K, resulting in pBlueHP489K/AB. The DNA fragment containing pHP489, kanamycin resistance gene(aph3'-Ⅲ), and urease structural gene was cut away from pBlueHP489K/AB and self-ligated to generate pBlueHP489K/AB. pBlueHP489K/AB made urease-negative H. pylori strains restore their urease activity. By this experiment, pBlueHP489K was confirmed to be the vehicle system for transferring H. pylori genes.

슬관절 전치환 성형술에서 슬개골 치환과 보존의 비교 분석

윤여승(Yeo Seung Yoon),김두섭(Doo Sub Kim),라중호(Jung Ho Rah),오진록(Jin Rok Oh),전종세(Jong Se Jean),허만승(Man Seung Her) 대한정형외과학회 2005 대한정형외과학회지 Vol.40 No.2

목적: 슬관절 전치환 성형술에서 슬개골 치환군과 보존군의 임상적, 방사선학적 결과를 비교하고자 한다. 대상 및 방법: 1996년 3월부터 슬관절 골관절염에 대하여 슬관절 전치환 성형술을 시행한 환자 중 5년 이상 추시가 가능했던 74명(슬개골 보존군 42예 슬개골 치환군 32예)을 대상으로 수술 전, 수술 후 1년, 수술 후 5년에 동통 점수(pain score), Hospital for Special Surgery (HSS) 슬관절 점수, 슬관절 기능 점수(knee function score)중 보행(walking)과 계단 오르내리기(stair-climbing) 그리고 방사선학적 결과를 조사하였다. 방사선학적 평가는 45° 굴곡 Merchant view를 이용하여 슬개골 경사도와 전위도를 측정하였다. 결과는 student’s t-test을 이용하여 분석하였다. 결과: 동통 점수, HSS 슬관절 점수, 슬관절 기능 점수 중 보행 그리고 방사선학적 결과에서 슬개골 치환군과 보존군 사이에 의미있는 차이는 없었고(p>0.05) 단지 슬개골 보존군에서 계단 오르내리기가 우수하였다(p<0.05). 결론: 슬개골 치환군과 비교할 때 슬개골 보존군에서도 유사한 임상적, 방사선학적 결과를 보였으며 슬개골 치환을 시행할 경우 슬개골 치환을 일괄적으로 시행하기 보다 선택적 기준에 따라 슬개골 치환을 함으로써 슬관절 전치환 성형술의 더 좋은 결과를 얻을수 있었다. Purpose: To compare the clinical and radiological results between patellar resurfacing, group and patellar retention group in total knee arthroplasty. Materials and Methods: Of the 74 patients who underwent total knee arthroplasty on due to knee osteoarthritis since March 1996, and followed-up for at least for 5 years, there were 42 and 32 cases in the patellar retention and patellar resurfacing groups respectively. These subjects were evaluated preoperatively and at 1 and 5 years postoperatively using the pain score, Hospital for Special Surgery (HSS) knee score, walking and stair-climbing in knee function score and radiological analysis. The radiological evaluation was achieved by measuring the patellar tilt angle and displacement with a 45° merchant view. The results were analyzed using the student's t-test. Results: There were no significantly differences between the patellar resurfacing and patellar retention groups in the pain score, HSS knee score, walking in knee function score and radiological analysis (p>0.05), but the patellar retention group achieved superior results in stair-climbing (p<0.05). Conclusion: The clinical and radiological results were similar in the patellar retention and patellar resurfacing groups. The use of selective indications of patellar resurfacing is required in order to achieve better results for total knee arthroplasty.

지반보강용 트레드매트의 인발저항 특성

윤여원(Yoon Yeo Won),이승원(Lee Seung Won),김근수(Kim Keun Soo),허승범(Heo Seung Beom) 대한토목학회 2006 대한토목학회 학술대회 Vol.2006 No.10

Modified Bristow 술식을 이용한 재발성 견관절 전방 불안정의 치료

윤여승(Yeo Seung Yoon),나중호(Jung Ho Rah),황성관(Sung Kwan Hwang),박희전(Hee Jeon Park),김덕영(Duck Young Kim) 대한정형외과학회 1995 대한정형외과학회지 Vol.30 No.5

동종 아킬레스건을 이용한 경경골 단일 후방 십자 인대 재건술과 이중 다발 후방 십자 인대 재건술의 임상적, 방사선학적 결과 비교 : 최소 2년 추시

윤여승(Yeo-seung Yoon),김두섭(Doo-sup Kim),전종세(Jong-se Jeon),강동현(Dong-hyun Kang),이창호(Chang-ho Lee) 대한정형외과학회 2010 대한정형외과학회지 Vol.45 No.4

목적: 동종 아킬레스건을 이용하여 경경골 단일 후방 십자 인대 재건술과 이중 다발 후방 십자 인대 재건술을 시행하고 임상적. 방사선학적 결과를 비교하였다. 대상 및 방법: 2000년 2월부터 2007년 6월까지 본원에서 후방 십자 인대 재건술을 시행하고 2년 이상 추시가 가능하였던 41예 중단일 후방 십자 인대 재건술 22예(53.7%), 이중 다발 후방 십자 인대 재건술 19예(46.3%)를 대상으로 하였다. 임상결과는 Lysholm 슬관절 점수, IKDC scale 방사선학적 결과는 Telos<SUP>®</SUP> 후방 전위 검사를 시행하여 비교하였다. 결과: 단일 후방 십자 인대 재건술 군은 Lysholm 점수가 술 전 평균 52.7±3.9점 최종 추시 시 평균 85.4±4.7점, IKDC scale은 술 전 grade C8예(36.3%), D 14예(63.6%), 술 후 grade A 4예(18.2%), B 14예(63.6%), C 4예(18.2%) 보였으며, 이중 다발 후방 십자 인대 재건술군은 Lysholm 점수가 술 전 평균 50.4±7.4점, 최종 추시 시 평균 87.5±5.12점 IKDC scale은 술 전 grade C 4예(21.1%), D 15예(78.9%). 최종 추시 시 grade A 1예(5.3%), B 15예(78.9%), C 3예(15.8%)였다. 최종 추시 시 Telos<SUP>®</SUP> 후방 전위 검사는 단일 후방 십자 인대 재건술군은 술 전 평균 14.6±2.52 ㎜ (10-19 ㎜), 최종 추시 시 평균 5.06±2.07 ㎜ (3.04-7.43 ㎜), 이 중 다발 후방 십자 인대 재건술 군에서는 술 전 평균 16.5±3.84 ㎜ (12-22 ㎜), 최종 추시 시 평균 4.04±1.48 ㎜ (2.18-7.20)㎜로 임상적. 방사선적 평가상 두 군 모두 술 전보다 의미있게 향상되었으나(p=0.001) 두 군 간의 통계학적 유의성은 없었다(p=0.458). 결론: 저자들은 이중 다발 후방 십자 인대 재건술을 시행하고 임상적 결과 및 방사선학적 검사의 결과를 단일 후방 십자 인대 재건술을 시행한 군과 비교하였으나 단기 추시 상에서는 두 군 간의 유의한 차이는 보이지 않아 장기 추시상의 결과 비교가 필요하리라 생각된다. Purpose: We performed transtibial single and double bundle reconstruction of the posterior cruciate ligament using the alia-achilles tendon and compared the results of single bundle reconstruction and double bundle reconstruction both clinically and radiologically. Materials and Methods: This study included 41 cases of posterior cruciate ligament reconstruction between February 2000 and June 2007 that had data available for at least 2 years of follow-up. Twenty-two cases (53.7%) underwent single bundle reconstruction and 19 cases (46.3%) underwent double bundle reconstruction. Clinical results were analyzed by Lysholm score and IKDC standards scale, and the radiologic results were analyzed by the Telos<SUP>®</SUP> posterior translation test. Results: The average Lysholm score at last follow-up was 85.4±4.7 in the single bundle group and 87.5±5.1 in the double bundle group. IKDC scores were grade A in 4 (18.2%). grade B in 14 (63.6%) and grade C in 4 (18.2%) in the single bundle group; they were 1 (15.3%), 15 (78.9%) and 3 (15.8%) in the double bundle group. Telos<SUP>®</SUP> posterior translation test scores were 5.06 ㎜ (3.04-7.43 ㎜) in the single bundle group, and 4.04 ㎜ (2.18-7.20 ㎜) in the double bundle group. There was significant improvement in clinical and radiological scores in both groups (p<0.001). However, these differences were not statistically significant (p>0.05). Conclusion: Further study with longer term follow-up is needed.

외측 광근건 해리술을 이용한 통증성 이분슬개골의 치료

윤여승(Yeo Seung Yoon),황성관(Sung Kwan Hwang),나중호(Jung Ho Rah),박희전(Heui Jeon Park),박영현(Young Hyun Park) 대한정형외과학회 1999 대한정형외과학회지 Vol.34 No.3

신경회로망을 이용한 일 유출량 예측에 관한 연구

윤여승(Yoon yeo seung),박종훈(Park jong hun),나진수(Na chin su),안경수(Ahn kyung soo) 대한토목학회 2000 대한토목학회 학술발표회 논문집 Vol.2000 No.3