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Oxy-Combustion of Sludge Derived-fuel by Circulating Fluidized Bed Reactor
Ha-Na Jang(장하나),Seung-Ki Baek(백승기),Jin-Ho Sung(성진호),Sewon-Park(박세원),Hang-Seok Choi(최항석),Yong-Chil Seo(서용칠),Jeong-Hun Kim(김정훈),Seung-Jae Jung(정승재),Chang-Ho Oh(오창호),Jae-Yong Shim(심재용) 한국신재생에너지학회 2013 한국신재생에너지학회 학술대회논문집 Vol.2013 No.05
슬관절 전치환술에서 외측 슬개지대 이완술의 효과에 관여하는 요소
최영준(Young Joon Choi),백승기(Seung Ki Baek),김정환(Chung Hwan Kim),김유진(Eu Gene Kim),엄재동(Jae Dong Um) 대한슬관절학회 2001 대한슬관절학회지 Vol.13 No.2
Purpose : To detect the factors which are related with the effect of lateral retinacular release in primary Knee Joint Arthroplasty(TKA). Materials and Methods : Two hundred cases of TKA which were performed by one surgeon with same implant. These cases were devided into two groups by whether they were done lateral release or not. Patella tilt was checked at post-op. 2 month and analysed according to the obesity, age, patella thickness, pre-op. tibiofemoral alignment and patella tilt. Results : Lateral release was done in 111 cases(55.5). In 153 cases(76.5%), patella tilt were less than 5˚, and the rest 47 cases*23.5%) were more than that postoperatively. In obese patients, the cases with lateral release showed better tilt than those without release and that was significant statistically(p<0.05). Preoperative alignment and patellar tilt, age, patella thickness and tibio-femoral angle were not related to postoperative patellar tilt regardless of lateral release. Conclusion : The effect of lateral retinacular release is better in obese patients but long term follow up is needed to evaluate clinical significance and survival of implant.
고관절 전치환술 환자의 보행 검사를 이용한 Scoring System
장재석 ( Jae Suk Chang ),이종복 ( Chong Pok Lee ),백승기 ( Seung Ki Baek ),이수호 ( Soo Ho Lee ),김기용 ( Key Yong Kim ),유종윤 ( Jong Yoon Yoo ),하상배 ( Sang Bae Ha ) 대한고관절학회 1997 Hip and Pelvis Vol.9 No.2
Total hip replacement arthroplasty(THA) is widely used to the patients with avascular necrosis(AVN) or degenerative arthritis(DA) to relieve pain and to obtain the recovery of function. Beside pain relief, patients want improvement in gait pattern, which is related with leg length discrepancy, range of motion, and muscle power. Accurate analysis of the recovery of gait after THA is almost impossible by the clinical observation. Therefore gait analysis is the answer for the identification of the factors related to the recovery of patients after the operation. This study was undertaken in an attempt to evaluate the gait recovery of 16 patients after unilateral THA with the scoring system using several gait parameters(single support time, walking speed, pelvic obliquity, hip motion), which was called as the gait score and to compare with Harris hip score system. We measured the gait score and the Harris hip score before and at one year after THA, and also measured the gait score in fourteen healthy persons. We compared the gait score preoperative, postoperative(POD) one year and fourteen healthy persons gait score, and also compared the gait score system with the Harris hip score system. The results were as followed: In normal control group, single support time was 38.6+-1.5, walking speed 9.4+-0.7, pelvic obliquity 4.9+-0.0, hip motion 42.3+-3.6, and total score 95.2+-4.8. Postoperative gait scores were significantly improved to 33.8+-2.7 of single support time from preoperative 23.3+-3.5, 6.8+-1.5 of walking speed from preoperative 3.6+-0.9, 4.4+-1.1 of pelvic obliquity from preoperative 2.2+-0.1, 32.9+-4.5 of hip motion(flexion-extension) from preoperative 23.8+-3.6, and 78.9+-5.3 of total score from preoperative 52.9+-4.8(P<0.05).