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두개경추이행부 병변 및 환축추탈구에 대한 경구적 접근법
조기홍,조경기,정남 대한신경외과학회 1996 Journal of Korean neurosurgical society Vol.25 No.11
Although the operation for the ventral lesion of craniovertebral junction and atlantoaxial area is considered difficult to perform. the transoral approach made it safer and easier The authors report 10 cases(9 patients) treated by the transoral approach for the lesion of craniovertebral juncion over the past 13 years at the Ajou University Hospital and the Presbyterian Medical Center. Of these 10 cases, there were 4 odontoid type Ⅱ fractures, 1 atlantoaxial dislocation, 1 as odontoideum. 1 chordoma at lower clival area, 1 rheumatoid arthritis. 1 epidural abscess and 1 wound revision due to slippage of grafted bone after clivoaxial fusion. The surgical methods included 4 cases of anterior decompression and clivoaxial fusion. 2 cases of anterior decompression and C1-2 interarticular joint fusion, 1 case of anterior decompression and clivoaxial fusion followed by posterior fusion, and 3 cases of anterior decompression and posterior fusion. In nonreducible atlantoaxial dislocation or ventral cord compression lesion. if the clivoaxial angle was less than 120 degree. the transoral approach was selected. The appropriate surgical approach must be selected according to the degree of compression of the neural tissue involving the craniovertebral junction and atlantoaxial dislocation.
조기홍,김현수,최아름,천지영,강태원,김민수,박경학,김제원 한국산업보건학회 2022 한국산업보건학회지 Vol.32 No.2
Objectives: The purpose of this study is to confirm whether there is a factor to affect the evaluation of fit test of a 2nd class half masks using a OPC test method. Methods: Total 34 adults including Males and Females were tested using OPC-based fit testing equipment while wearing a 2nd class half filtered mask. Results: 1. The result of measuring face dimensions using different tools such as a 3D scanner and digital calipers revealed that the variation of lip width was not statistically significant because there was only a difference of about 4 ㎜. However, it showed that a difference in face length was statistically significant enough with 10 ㎜(p<0.000). 2. The fit factor for each exercise stage according to gender was the highest at 124.54(p<0.001) in Step 3, and the fit factor was the lowest at 73.75 in Step 1. 3. In the evaluation of the degree of fit factor according to gender, female passed 67.44%, which was higher than the value in male(p<0.038). 4. The acceptance rate of the group having a face length of shorter than 110 ㎜ was 91.67%. On the other hand, the acceptance rate of the group with a face length of longer than 110 ㎜ was 47.27%(p<0.000). 5. The fit test was possible because the fit factor with 2nd class half masks corresponding to FFP1(Filtering Face Piece 1) was passed 55% or more. Conclusions: The test results showed that using a 2nd class half filtered mask, it is important to wear a properly designed mask so that face size does not affect the fit factor.