http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
척골 주두골절에 대한 금속판 내고정술 및 장력대 강선 고정술
박종혁,이준모 대한골절학회 1996 대한골절학회지 Vol.9 No.3
Fractures of the olecranon of ulna are caused by a number of different mechanisms including a direct blow, a fall on the stretched hand with the elbow in flexion leading to an avulsion fracture by the contracture of the stretched, and by higher energy trauma. Olecranon fractures are intraanicular and frequently unable to manage by manipulation, therefore an open reduction and internal fixation procedure is usually indicated. Authors have experienced and compared the results of 21 cases who were treated by plating and tension-band wiring technique from March l989 through February 1996 at the Department of Orthopedic Surgery, Chonbuk National University Hospital. The results were as follows, 1. Fractures treated by plating were type II. C comminuted fractures(6 cases, 28%), type ll. D fracture/dislocations(2 cases, 10%) and type II. B transverse and oblique fractures(2 cases, 10%) in Colton's classification. 2. Plating was the preferred technique for the type II. C and II. D fractures which need autogenous iliac cancellous bone grafting and early active rehabilitation. 3. All of 21 cases were followed up for more than 15 months after surgery and showed good and excellent results according to Weseley's crileria. 4. In tension-band wiring, olecranon bursitis was occurred in 1 case.
The Impact of Surgical Treatment on Survival in Patients With Cervical Spine Metastases
박종혁,이동근,황주영,이선호,어환,김은상 대한척추신경외과학회 2018 Neurospine Vol.15 No.2
Objective: To compare overall survival (OS) in patients with cervical spine metastases between initial radiotherapy followed by surgery and initial surgery followed by radiotherapy. Methods: The medical records of 36 patients with cervical spine metastases from January 2007 to December 2015 were retrospectively analyzed. These patients were divided into 2 groups. Group 1 included patients who underwent initial radiotherapy followed by surgery, while group 2 included patients who underwent initial surgery followed by radiotherapy. Clinical outcomes, OS, OS after cervical spine metastasis, and OS after surgery were analyzed in both groups. We evaluated whether primary tumor type, initial treatment modality, the modified Tomita score, Eastern Cooperative Oncology Group performance status, Karnofsky performance status, Japanese Orthopedic Association (JOA) score, Nurick grade, Frankel classification, and preoperative symptoms were associated with OS after cervical spine metastasis. Results: Both groups exhibited improvement in the postoperative visual analogue scale, but only group 2 showed a significant improvement in postoperative JOA score (p=0.03). OS did not differ significantly between groups. However, OS after cervical spine metastasis was only 7.0 months (95% confidence interval [CI], 4.8–9.3) in group 1 versus 15.8 months (95% CI, 8.8–24.0) in group 2, which represented a significant difference (p<0.05). Factors related to OS after cervical spine metastasis were primary tumor type, initial treatment modality, and preoperative symptoms (p<0.05). Patients who presented with only preoperative pain had approximately 3 fold longer OS after cervical spine metastasis than patients with preoperative motor weakness, even in group 2 (p<0.05). Conclusion: Surgical treatment prior to the onset of motor weakness or radiotherapy may be a good decision in case of cervical spine metastasis.
쉬땅나무(Sorbaria sorbifolia var. stellipila MAX.) 열매의 항산화 활성 성분
박종혁,권진아,양윤정,한효상,한민우,이영일,김인수,이종일,강세찬 한국자원식물학회 2011 한국자원식물학회지 Vol.24 No.4
합성항산화제의 독성과 부작용으로 인한 천연물유래 항산화제에 대한 관심과 연구개발이 활발한 가운데 추출물 단계에서 ORAC assay를 통하여 우수한 항산화 활성을 가지는 쉬땅나무(Sorbaria sorbfolia var. stellipila Max.) 열매의 생물학적 생리활성 성분을 분리, 동정하기 위하여 국내에 자생하는 쉬땅나무의 열매를 채집하여 80% MeOH로 추출한 후 일반적인 용매분획법에 의해 분획한 분획물과 추출물을 대상으로 ORAC assay를 실시한 결과 80% MeOH추출물과 EtOAc, n-BuOH분획에서 천연항산화제인 trolox보다 우수한 활성이 나타났으며, 이중 가장 우수한 활성을 나타낸 EtOAc 분획물로 부터 각종 chromatography기법을 통하여 분리, 정제한 결과 flavonoid계열의 화합물인 catechin을 단리 하였다. 단리 되어진 catechin은 쉬땅나무의 열매에서는 처음으로 본 연구에서 보고되는 성분으로 ORAC assay에서 대조군인 trolox에 비해 높진 않지만 유사한 활성이 나타나, vitamine E와 유사한 항산화 활성을 나타내는 것으로 보여지며, 따라서, 이 성분 외에 다양한 항산화 활성 성분들의 복합작용으로 인하여 쉬땅나무 열매 추출물 및 분획물이 vitamine E에 비하여 3배 이상의 높은 항산화 활성이 나타나고 있음을 시사하는 바이다. 현재까지 쉬땅나무에 대한 식물학적 성분연구 및 유효활성 성분연구가 다른 천연물에 비하여 상대적으로 활발하게 이루어지지 않았으나, flavonoid계 화합물이 TLC확인 시험을 통하여 확인한 바 다양하게 존재하고 있어, 향후 이와 유사한 다양한 flavonoid계열의 화합물을 분리하여, 우수한 항산화 활성을 갖는 천연물의약품의 기초자료 제공 등 항산화 성분연구에 많은 기여를 할 수 있을 것으로 판단된다. The purpose of this study was to evaluated the antioxidative constituents and their activities of the 80% methanolic extracts from fruit of Sorbaria sorbifolia var. stellipila MAX. The isolation of active compound was performed in three steps: solvent partition, open column chromatography, and high-performance liquid chromatography (HPLC). The solvent fractions were tested for their antioxidant activities by oxygen radical absorbance capacity (ORAC). The antioxidant activity of 80% methanolic extracts by various solvent partitions was in the order of 80% MeOH (1.68 ± 0.027), n-hexane (1.02 ± 0.036), CH2Cl2 (0.95 ± 0.025), EtOAc (1.98 ± 0.065), n-BuOH (1.94 ± 0.054) and Water (1.28 ± 0.032). Therefore, the results indicated that the potential antioxidant activities and functional values were observed significantly at EtOAc fraction from fruit of S. sorbifolia, flavonoid compound isolated.
박종혁,권미아,김현지,최병태 대한법의학회 2015 대한법의학회지 Vol.39 No.3
An 18-year-old man collapsed at his workplace while putting desiccant into a cylindrical mixer, 2 m 1 m in dimension, which contained rubber powder. His coworker found him collapsed, and he was transported to a hospital by a 119 rescue team, where he died. Prior to the incident, liquid nitrogen had been placed into the mixer to lower the temperature of the rubber powder. There were no injuries or disease that could have caused death. Analysis of the gas in the mixer revealed that the O2 concentration had dropped to 3.7% in 2 minutes following addition of the liquid nitrogen. Therefore, it was concluded that the cause of death was asphyxia due to oxygen deficiency caused by liquid nitrogen evaporation.