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A Novel Mediastinal Drainage Tube for Mediastinitis
양준호,장인석,김성환,박현오,강동훈,최준영 대한흉부외과학회 2015 Journal of Chest Surgery (J Chest Surg) Vol.48 No.5
Mediastinitis is a life-threatening disease, and effective drainage is needed to treat mediastinitis with abscess formation. We recommend an alternative drainage method using chest tube binding with a Silastic Penrose drainage tube. The use of a Silastic Penrose drainage tube may help to manage mediastinitis with abscess formation. This method facilitates effective draining and prevents tissue adhesion
피부 견인 후 좌골 체중 부하 보조기를 이용한 소아 대퇴골 간부 골절의 치료
양준호,김동헌,오재진 대한골절학회 2000 대한골절학회지 Vol.13 No.4
Purpose: Most of the pediatric femoral shaft fractures are treated conservatively such as traction therapy followed by cast fixation. At Konkuk University Hospital, for those pediatric femoral shaft fractures that managed well with skin traction without having to perform bone traction, we utilized skin traction until callus appear on the radiologic studies. At this time, they wore ischial weight bearing braces were and forced on early ambulation with satisfactory result. Material and Methods: The pediatric patients between 2 to 10 years of age with femoral shaft fractures during January 1993 to January 1997 were selected for the study. They were treated with skin traction followed by wearing ischial weight-bearing braces. From the 39 selected cases, we selected 32 cases with 1-year follow-ups. For each case, results from before and after the treatment were studied Results: The average post-therapy angular changes were that the varus angle change was 10.2, anterior 10.6. There were 7 cases of malunion, 6 cases of anterior angle change, 1 case of varus angle change. The average duration of skin traction was 4.3 weeks and initiation of weight-bearing was 5.8 weeks. We observed 6 cases of limb- length discrepancy, but no signs of claudication in any cases. Conclusion: In pediatric femoral shaft fractures, if the alignment is maintained well, then we can utilize skin traction followed by ischial weight-bearing braces, which enables earlier ambulation than the cast fixation. Also skin traction and weight-bearing braces has less complication than the cast fixation.
케모메트릭 방법과 결합된 레이저 유도 플라즈마 분광법을 적용한 유류 지문의 법의학적 분류 연구
양준호,여재익 한국광학회 2020 한국광학회지 Vol.31 No.3
An innovative method for separating overlapping latent fingerprints, using laser-induced plasma spectroscopy (LIPS) combined with multivariate analysis, is reported in the current study. LIPS provides the capabilities of real-time analysis and high-speed scanning, as well as data regarding the chemical components of overlapping fingerprints. These spectra provide valuable chemical information for the forensic classification and reconstruction of overlapping latent fingerprints, by applying appropriate multivariate analysis. This study utilizes principal-component analysis (PCA) and partial-least-squares (PLS) techniques for the basis classification of four types of fingerprints from the LIPS spectra. The proposed method is successfully demonstrated through a classification example of four distinct latent fingerprints, using discrimination such as soft independent modeling of class analogy (SIMCA) and partial-least-squares discriminant analysis (PLS-DA). This demonstration develops an accuracy of more than 85% and is proven to be sufficiently robust. In addition, by laser-scanning analysis at a spatial interval of 125 µm, the overlapping fingerprints were separated as two-dimensional forms.