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이광원,Dong Wook Seo,배경완,Won Sik Choy 대한정형외과학회 2013 Clinics in Orthopedic Surgery Vol.5 No.4
Background: We retrospectively assessed the clinical outcomes and investigated risk factors influencing retear after arthroscopic suture bridge repair technique for rotator cuff tear through clinical assessment and magnetic resonance arthrography (MRA). Methods: Between January 2008 and April 2011, sixty-two cases of full-thickness rotator cuff tear were treated with arthroscopic suture bridge repair technique and follow-up MRA were performed. The mean age was 56.1 years, and mean follow-up period was 27.4 months. Clinical and functional outcomes were assessed using range of motion, Korean shoulder score, Constant score, and UCLA score. Radiological outcome was evaluated with preoperative and follow-up MRA. Potential predictive factors that influenced cuff retear, such as age, gender, geometric patterns of tear, size of cuff tear, acromioplasty, fatty degeneration, atrophy of cuff muscle, retraction of supraspinatus, involved muscles of cuff and osteolysis around the suture anchor were evaluated. Results: Thirty cases (48.4%) revealed retear on MRA. In univariable analysis, retear was significantly more frequent in over 60 years age group (62.5%) than under 60 years age group (39.5%; p = 0.043), and also in medium to large-sized tear than small-sized tear (p = 0.003). There was significant difference in geometric pattern of tear (p = 0.015). In multivariable analysis, only age (p = 0.036) and size of tear (p = 0.030) revealed a significant difference. The mean active range of motion for forward flexion, abduction, external rotation at the side and internal rotation at the side were significantly improved at follow-up (p < 0.05). The mean Korean shoulder score, Constant score, and UCLA score increased significantly at follow-up (p < 0.01). The range of motion, Korean shoulder score, Constant score, and UCLA score did not differ significantly between the groups with retear and intact repairs (p > 0.05). The locations of retear were insertion site in 10 cases (33.3%) and musculotendinous junction in 20 cases (66.7%; p = 0.006). Conclusions: Suture bridge repair technique for rotator cuff tear showed improved clinical results. Cuff integrity after repair did not affect clinical results. Age of over 60 years and size of cuff tear larger than 1 cm were factors influencing rotator cuff retear after arthroscopic suture bridge repair technique.
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50세 이상의 연령에서 전방십자인대 재건술의 임상적 결과
이광원,김용인,서동욱,차용한,김갑중,최원식,Lee, Kwang-Won,Kim, Yong-In,Seo, Dong-Wook,Cha, Yong-Han,Kim, Kap-Jung,Choy, Won-Sik 대한정형외과스포츠의학회 2010 대한정형외과스포츠의학회지 Vol.9 No.2
Purpose: To compare the clinical results after reconstruction of the anterior cruciate ligament (ACL) between above the 50 years old patients and below the 50 years old patients retrospectively. Materials and Methods: The results obtained 18 patients above 50 years old (mean age 55.1) and 198 patients below 50 years old (mean age 31.2) who underwent reconstruction of the ACL between July 2004 and April 2008. Clinical evaluation was performed with the International Knee Documentation Committee (IKDC) and Lysholm knee score scale. Anterior displacement of knee was measured by KT-2000 arthrometer. Results: Lysholm scores improved from 69.5 to 93.6 in patients above 50 years old, from 69.0 to 92.6 in patients below 50 years old (p<0.05). According to IKDC score, results more than nearly normal was 83% (15 cases) in patients above 50 years old, 86% (170 cases) in patients below 50 years (p<0.05). The mean difference of anterior displacement measured by KT-2000 was decreased from 7.4 mm to 2.2 mm in patients above 50 years old, from 7.1 mm to 2.0 mm in patients below 50 years old (p<0.05). Conclusion: There was no significant difference between the patients above 50 years old and below 50 years old. In patients above 50 years old, the reconstruction of ACL obtained satisfactory results.
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이광원,김진우,김태훈,허희진 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.1
과학기술분야가 발전을 하면서 기존의 기술보다 새로운 기술을 개발하기 위해 새로운 방법의 연구와 다양한 실험들이 이루어지고 있다. 이러한 연구,실험,실습 등이 많아지면서 연구실에서 안전사고가 빈번하게 이루어지며, 그 사고의 크기는 점점 더 커지고 있다. 그에 따라서 정부기관에서는 “연구실안전환경 조성에 관한 법률”을 제정하고 시행었으며 또한 연구실안전지원센터를 5개권역에 설치하였다. 센터의 현황과 사업내용, 연구실안전 유관기관의 현황과 연구실안전관리자들의 현황 및 연구실안전의 미래에 대하여 논의하고자 한다.
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