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Lee, Sahnghoon,Jang, Jak,Seong, Sang Cheol,Lee, Myung Chul Springer International 2012 KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY Vol.20 No.2
<P>The purpose of this study was to determine the success rate of the distraction arthrodesis, which was attempted to maintain the limb length during arthrodesis using an intramedullary nail and mixed bone grafting, in terms of the eradication of infection, solid union, and functional outcome. The hypothesis was that distraction arthrodesis would be successful in union and elimination of infection with minimal limb shortening and a satisfactory functional outcome despite large bone defects. Eight patients were managed by arthrodesis using a Huckstep intramedullary nail and massive corticocancellous bone chip grafts from autologous iliac bone and deep-frozen femoral head allografts were included in the study. The mean age of the patients was 65.5 +/- A 7.1 years, and the follow-up duration was 52.1 +/- A 21.3 months. A mean of 5.3 +/- A 1.3 surgical procedures had been performed before arthrodesis. The mean longest and shortest distances of the bone defect were 58.6 +/- A 10.3 and 34.6 +/- A 7.0 mm, respectively. Radiological union was obtained in all cases at a mean of 9.9 +/- A 1.9 months. The mean postoperative limb shortening was 11.0 +/- A 7.3 mm when compared to the contralateral knee. The mean Knee Society score was 59.9 +/- A 9.2, and the function score was 38.8 +/- A 13.3. No additional procedures were required for any of the patients. Distraction arthrodesis of infected knees following total knee arthroplasty demonstrated union and eradication of infection in all patients and a large tibiofemoral gap due to the severe bone defect could be managed with massive bone chip grafts. This method of arthrodesis would be a reliable and an effective method for failed total knee arthroplasty when two-staged reimplantation fails or is not attainable. Study of case series with no comparison group, Level IV.</P>
Lee, Sahnghoon,Kim, Hyoungmin,Jang, Jak,Seong, Sang Cheol,Lee, Myung Chul Springer International 2012 KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY Vol.20 No.4
<P>To prospectively assess the anterior tibial translation and rotational kinematics of the knee joint as well as the clinical outcome after single-bundle (SB) and double-bundle (DB) anterior cruciate ligament (ACL) reconstruction.</P>
Gender disparity in anterior cruciate ligament injuries
Yool Cho,Sahnghoon Lee,Yong Seuk Lee,Myung Chul Lee 대한정형외과 스포츠의학회 2014 Arthroscopy and Orthopedic Sports Medicine Vol.1 No.2
A gender disparity exists in the prevalence of anterior cruciate ligament injuries. Females are more likely to injure their anterior cruciate ligaments than males. The incidence of anterior cruciate ligament injuries in females is expected to increase as the participation of females in sports increase. To gain a better understanding of this gender disparity, we reviewed the literature for any difference in risk factors for injury of the anterior cruciate ligaments towards either males or females. A greater understanding of risk factors for anterior cruciate ligaments will help formulate prevention programs against injuries and also predict those who are in high-risk groups.
동종 아킬레스건을 이용한 슬관절 후외측부 해부학적 재건술의 단기 추시 결과
이명철(Myung Chul Lee),이상훈(Sahnghoon Lee),장종범(Chong Bum Chang),유재호(Jae Ho Yoo),한혁수(Hyuk Soo Han),최선종(Sun Jong Choi),성상철(Sang Cheol Seong) 대한정형외과학회 2005 대한정형외과학회지 Vol.40 No.7
목적: 슬관절 후외측 회전 불안정성에 대해 외측측부인대, 슬와비골인대 및 슬와건을 동시에 재건할 수 있는 동종 아킬레스건을 이용한 새로운 술식의 수술 후 단기 추시 결과를 살펴보고자 한다. 대상 및 방법: 2002년 1월부터 2003년 6월까지 슬관절의 후외측 회전 불안정성으로 수술받은 환자 11명을 대상으로 하였다. Lysholm knee score, Tegner 활동도 점수를 이용하여 임상적 결과를 평가하였고 후외측 회전 불안정성에 대한 이학적 검사를 시행하여 결과를 분석하였다. 결과: 평균 추시 기간은 26개월이었고 Lysholm knee score는 수술 전 평균 38.6에서 수술 후 평균 72.5로 유의한 증가를 보였고, Tegner activity level은 수술 전 평균 1.6에서 수술 후 평균 3.3으로 유의한 증가를 보였다. 후외측 전위검사와 30° 굴곡 위 내반 긴장검사는 수술 전 11예 모두에서 양성이었고, 수술후 1예를 제외하고 모두 소설되었다. 30°굴곡 하에 외회전-dial 검사는 수술 전 11예 모두에서 양성이었고 수술 후 모두 소설되었다. 완전 신전 위 내반 긴장검사와 90° 굴곡 위 외회전-dial 검사는 수술 전 8예에서 양성을 보였으며 수술 후 모두 소실되었다. 결론: 저자들이 고안한 새로운 후외측 재건술은 단기 추시상 슬관절의 후외측 회전 안정성의 회복에 만족할 만한 결과를 얻을 수 있었다. Purpose: The purpose of this study was to evaluate the short term clinical results of the new anatomical reconstruction including 3 major posterolateral structures of the knee using a split Achilles allograft. Materials and Methods: Eleven knees with posterolateral rotary instability underwent new anatomical posterolateral reconstruction between January 2002 and June 2003. The clinical results were assessed using the Lysholm score and Tegner activity level scales and physical examinations including postero-lateral drawer test, dial tests at 30 and 90 degrees of knee flexion, varus stress tests at 0 and 30 degrees of knee flexion. Results: Follow-up averaged 26 months (range, 12 to 29 months). The mean preoperative Lysholm score was 38.6 and at the time of latest follow-up, the mean score was improved to 72.5. The mean preoperative Tegner activity level was improved from 1.6 points to 3.3. Ten out of 11 patients showed negative conversion of the posterolateral drawer test and varus stress test at 30 degrees of flexion postoperatively. All patients, who showed positive signs on the external rotation-dial test at 30 degrees of knee flexion pre-operatively, improved postoperatively. In eight patients, preoperative positive signs of varus stress tests at 0 degrees of knee flexion and the external rotation-dial test at 90 degrees of knee flexion disappeared postoperatively. Conclusion: This study suggests that the new anatomical reconstruction of posterolateral corner of knee is a reliable method providing excellent stability and satisfactory short term clinical results.
Kim, Joong Il,Kim, Bo Hyun,Lee, Ki Woung,Lee, Osung,Han, Hyuk Soo,Lee, Sahnghoon,Lee, Myung Chul SAGE Publications 2016 AMERICAN JOURNAL OF SPORTS MEDICINE - Vol.44 No.12
<P>Registration: Clinical Trials Registry Platform (protocol number KCT00001684).</P>
목상해 저감 장치를 이용한 ACTIVE SEAT 개발에 대한 연구
윤국로(Googlo Yoon),신상훈(Sahnghoon Shin),성상석(Sangseok Seong),이현기(Hyeonki Lee) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
This paper presents the ACTIVE SEAT. The name ‘ACTIVE SEAT’ means the vehicle seat that using mechanism for reducing the neck injury. Although the vehicle is equipped with active head restraint normally for reducing the neck injury, many drivers were injured by rear-end collision. The reason is because active head restraint has many faults and mechanism is required for certain level of safety on the neck injury. Therefore mechanisms of various ways are studied actively. Finally, in this study, active seat using developed mechanism for reducing the neck injury shows better than active head restraint at KNCAP(Korea New Car Assessment Program) test and analysis program.