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퇴행성 슬관절염 환자에서 슬관절경 세척술과 경피적 다발성 골천공술의 치료 결과분석
안치성,김병직,고한석,임영,서정국,김진구,박정규 ( Chi Sung Ahn,Byung Jik Kim,Han Suk Ko,Young Lim,Jeong Gook Seo,Jin Ku Kim,Jung Kyu Park ) 대한슬관절학회 1997 Knee Surgery and Related Research Vol.9 No.1
42 knees with degenerative arthritis underwent arthroscopic lavage and 7 knees underwent arthroscopic lavage combined with multiple bone drilling in between 1994 and 1995 and followed average 12 months. Clinical evaluation using the hospita1 for specia] surgery knee scores(HSS scores) was done at last follow up and classified into 4 groups: excellent(90-99), good(80-89), fair(70-79) and poor(less than 70). The results were as follows: l. Of the 42 knees of the lavage group, 6 knees(16%) was excellent, 14 knees (33%) good, ]7 knees(40%) fair and 5(11%) knees poor. Success group (Excellent & Good) were achived in 20 knees(49%). 2. Of 17 knees treated with arthroscopic lavage comhined with multiple bone drillig resulted in excellent in 9 knees(53%), good in 4 knees(23%), fair in 2 knees(12%) and poor in 2 knees(12%). Success group were achived in 13 knees(76%). 1n conclusion, we helieve that multiple bone drilling in conjunction with arthroscopic lavage has more favorable effect on the pain relief for degenerative osteoarthritis of the knee than arthroscopic lavage only.
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혼미이하의 의식수준을 보이는 자발성 뇌실질출혈 환자에서의 수술 후 결과
안치성,이상구,김혁수,공민호,송관영,강동수 대한신경외과학회 2004 Journal of Korean neurosurgical society Vol.35 No.3
Objective : Spontaneous supratentorial intracerebral hemorrhage can be considered as one of the most common forms of cerebravascular disease. Effective reduction of intracranial volume buffering capacity in elevated intracranial pressure is most important factor related to a poor prognosis in cases with huge hematoma and compromised mental status. The role of surgery in the management of such cases are still controversial. Methods : Thirty patients with altered mental status less than stuporous and spontaneous supratentorial hematoma were underwent craniotomy or decompressive craniectomy and duroplasty. The hematoma volume were ranging from 31 to 120ml. In 14 patients, in whom a progression in secondary brain swelling was expected to occur after hematoma evacuation, a decompressive craniectomy with dural enlargement was performed. The overall clinical result was expressed as 30 day mortality, Glasgow outcome scale(GOS) and modified Rankin scale 1 year after surgery. The favorable outcome (GOS 4) were analyzed with variables [age, initial Glasgow coma scale(GCS), hematoma volume, location of hematoma, extent of midline shift, intraventricular hemorrhage, and time interval from ictus to surgery]. Results : The overall clinical results showed 10% of 0-day mortality, 56.6% of favorable outcome and 53.3% of independency ( 2 of modified Rankin scale). A significant statistical correlation was found between outcome and initial GCS and location of hematoma(p<0.05). The decompressive craniectomy and duroplasty proved some useful in increasing postoperative GCS of compromised patients. Conclusion : Surgical treatment of patients with spontaneous supratentorial intracerebral hemorrhage with altered mentality less than stuporous can have a positive role, in selected cases.
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RF 스퍼터링 공정을 이용한 나노구조체 기반 MoS2 박막 증착 연구
안치성 한국열처리공학회 2024 열처리공학회지 Vol.37 No.6
The MoS (molybdenum disulfide) has been recognized as a representative 2D materials in the transition metal dichalcogenides group, exhibiting significant potential for electrical, optical, wear-resistance applications. With the growing demand on continuous and uniform quality of MoS thin films for the industrial 2 application, feasible techniques are being explored, and the sputtering is emerging as one of the noticeable candidate to replace CVD (chemical vapor deposition) and ALD (atomic layer deposition) processes which has relatively been studied due to its easy process control. Accordingly, the main aim of this study is to in- vestigate the effects of process variables on structural and material properties of MoS2 thin films deposited on a 1 × 1 inch of SiO /Si substrate by 13.56 MHz RF (radio frequency) sputtering methods using a single 2 MoS2 target through Raman spectroscopy, SEM (scanning electron microscopy) and EDS (energy disper- sive spectroscopy) mapping analysis. All of the deposited MoS2 thin films were composed of flower-like nanostructures exhibiting columnar arrays and their size showed a larger tendency as the plasma power increased and the process pressure decreased. Additionally, the deposition rate revealed a proportional re- lationship with sputtering time, reaching approximately 40 nm/min under optimized process conditions.
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