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김선용,박광환,이진우,Kim, Sun-Yong,Park, Kwang-Hwan,Lee, Jin-Woo 대한족부족관절학회 2010 대한족부족관절학회지 Vol.14 No.1
Purpose: The purpose of this study was to evaluate the clinical and radiological outcomes of the S.E.R.I. (simple, effective, rapid, inexpensive) operation for the bunionette deformity. Materials and Methods: Between March 2005 and February 2009, 22 patients (26 feet) who had been treated for the bunionette deformity with minimally invasive osteotomy were reviewed retrospectively. Clinically, Visual Analogue Scale (VAS), American Orthopaedic Foot and Ankle Society (AOFAS) score, shoes selectivity, disappearance of callus and patient's satisfaction level by Coughlin scoring system were evaluated. Radiologically, the bunionette was classified as four types according to the Fallat classification. The 4-5$^{th}$ intermetatarsal angle (4-5$^{th}$ IMA), the 5$^{th}$ metatarsophalangeal angle (5$^{th}$ MPA) and the length of 5th metatarsal bone (5$^{th}$ MTL) were analyzed at preoperatively and at final follow up visit. Results: VAS improved from $6.8{\pm}1.8$ points to $2.2{\pm}1.8$ points (p<0.05). AOFAS score improved from $54.0{\pm}14.2$ points to $90.0{\pm}4.8$ points (p<0.05). There was no change in shoes selectivity. 9 feet (34.6%) were satisfied with excellent results, 16 feet (61.5%) with good results and 1 foot (3.9%) with fair results. The average 4-5$^{th}$ IMA was corrected from $10.1{\pm}2.3^{\circ}$ to $4.4{\pm}1.7^{\circ}$ (p<0.05). The average 5$^{th}$ MPA was corrected from $11.5{\pm}8.6^{\circ}$ to $-0.1{\pm}4.1^{\circ}$ (p<0.05). The average 5$^{th}$ MTL was changed from $66.1{\pm}4.3$ millimeters to $64.1{\pm}4.4$ millimeters (p=0.069). There was no malunion, nonunion or delayed union and other perioperative complications. Conclusion: S.E.R.I. operation is less invasive and easy technique. This procedure is recommendable for the treatment of the bunionette deformity.
김선용,이의웅,Kim, Sun-Yong,Lee, Eui-Wung 대한구강악안면외과학회 2001 대한구강악안면외과학회지 Vol.27 No.2
Two major salivary glands, submandibular duct, lingual nerve, and vessels are situated beneath the mouth floor. Among these, passing through the pterygomandibular space, lingual nerve is innervated to the lingual gingiva and the mucosa of mouth floor, and is responsible for the general sensation of the anterior two thirds of the tongue. So, the injury of the lingual nerve during an anesthesia or surgery in the retromolar area may cause complications such as a numbness, a loss of taste of the tongue and the other dysfunctions. Therefore, to find out the morphology and the course of lingual nerve and to clarify the topographical relationships of lingual nerve at the infratemporal fossa and paralingual space area, 32 Korean hemi-sectioned heads were dissected macroscopically and microscopically with a viewpoint of clinical aspect in this study. This study demonstrated various anatomical characteristics with relation to the course and topography of the lingual nerve in Koreans. And clinical significances based on the anatomical variations through the topography of the courses and communications between the mandibular nerve branches were described in details.
유한요소법에 의한 부식을 고려한 전동차 차체의 강도평가
김선용(Kim Sun-Yong),구병춘(Goo Byeong-Choon),임충환(Lim Choong-hwan) 한국철도학회 2005 한국철도학회 학술발표대회논문집 Vol.- No.-
All the facility, the structure and the rolling stock have limited life so after starting use, we must decide disuse or use when it exeeds the lifetime. Currently the subway which exeeds the lifetime appeared in our country. Structural members of rolling stock structures were occurred corrosion after passage of time and It gives a many effect in the structure strength. In this study, it accomplished a structural analysis which use FEM for the No.2 subway line which operated currently, and it investigated the structural strength change which it follows with dimension change of structural members due to corrosion.