• Title/Summary/Keyword: Indirect fixation

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Usefulness of Indirect Open Reduction and External Fixation in Algorithm Oriented Treatment of Nasal Fracture (비골골절 치료 시 간접 관혈적 정복술 및 외고정술의 유용성)

  • Park, Ki Rin;Chung, Kyu-Jin;Kim, Yong-Ha
    • Archives of Craniofacial Surgery
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    • v.14 no.2
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    • pp.81-88
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    • 2013
  • Background: To suggest the need of more aggressive reduction techniques than closed reduction (CR) technique in nasal fracture treatment, we identified the usefulness of algorithm oriented treatment of nasal fracture that includes indirect open reduction (IOR) and external fixation (EF) as well as the CR. Methods: We compared the clinical course of the group A (n=128) where only the CR was performed regardless of the pattern of the nasal fracture and the group B (n=127) where algorithm oriented treatment including IOR and EF as well as CR was performed depending on the pattern of nasal fracture. And the degree of postoperative pain after CR and IOR technique was compared through the dose of analgesics and pain scores. Results: More than 80% of patients were satisfied the result of reduction in both group A and B. Good contour of nasal bone after reduction was showed 71% of group A and 81% of group B without significant difference. Minor (p>0.05) and major (p<0.05) deformity after reduction were less occurred in the group B than group A. Postoperatively, the dose of analgesics was significantly lower after IOR technique than CR technique (53 mg vs. 142 mg) (p<0.05). Conclusion: Algorithm oriented treatment of nasal fracture including IOR and EF as well as CR reduce major deformity after reduction than treatment of CR alone. It is useful to perform the more aggressive reduction techniques such as IOR and EF according to the pattern of fracture in treatment of nasal fracture.

Comparison on serological reaction between complement fixation test and enzyme-linked immunosorbent assay for detection of antibodies against Sendai virus, mouse hepatitis virus and Mycoplasma pulmonis in mice and rats (마우스 및 랫트의 Sendai virus, mouse hepatitis Virus, Mycoplama pulmonis 감염(感染)에 대한 보체결합반응(補體結合反應)과 효소표식면역흡착측정법(酵素標識免疫吸着測定法)과의 비교(比較))

  • Chung, Yoo-yeul;Lee, Hak-cheul;Lee, Eun;Yoo, Byung-sam
    • Korean Journal of Veterinary Research
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    • v.29 no.4
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    • pp.517-523
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    • 1989
  • This study was undertaken to establish reliable diagnostic-procedures for the microbiological monitoring of laboratory animals. Murine(mice and rats) antibodies against hemagglutinating virus of Japan(HVJ), mouse hepatitis virus(MHV) and Mycoplasma pulmonis(Mp) were detected sensitively and specifically in experimentally and naturally infected animals' sera by an indirect enzyme-linked immunosorbent assay(ELISA), using urease conjugated antimurine immunoglobulin. The sensitivity and specificity of the complement fixation test which has been apllied widely for serodiagnosis of HVJ, MHV and Mp infections were apparently lower than those of ELISA. From these results, the ELISA was found to be available for the serodiagnosis of HVJ, MHV and Mp infections in mice and rats.

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Effects of Calcaneus Fixation Taping on Quadriceps Angle and Lower Limb Muscles During Stairway Gait of a Patient with Patellofemoral Pain (무릎넙다리통증증후군 환자의 계단보행 시 발뒤꿈치뼈 교정 테이핑이 슬개대퇴각과 하지근육에 미치는 영향)

  • Oh, Kang-O;Lee, Sang-Yeol
    • PNF and Movement
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    • v.17 no.2
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    • pp.311-319
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    • 2019
  • Purpose: This study was conducted to determine the structural change in knees caused by quadriceps angle and the muscle activity in lower limbs. Indirect intervention was provided by using taping for stability in the ankle joints, which affected patellofemoral pain. Methods: The subjects in this study were 20 patients with patellofemoral pain who visited ${\bigcirc}{\bigcirc}{\bigcirc} $ Hospital in Busan. The visual analogue scale measured the dynamic quadriceps angle and the degree of pain felt by the patients while walking down stairs, which was a known factor of patellofemoral pain. In addition, muscle activities in the rectus femoris, vastus lateralis, vastus medialis, tibialis anterior, peroneus longus, and biceps femoris, which affect the knees and ankles, were measured using surface electromyography. The muscle activities were converted into %RVC for this study. The data obtained in this study were analyzed with the Wilcoxon signed-rank test using the SPSS Ver. 25.0 statistical program. The significance level ${\alpha}$ was 0.05. Results: The study results showed that the pain and dynamic quadriceps angle were significantly reduced statistically when applying the calcaneus fixation taping (p<0.05). Muscle activity in the lower limbs was significantly decreased in the vastus medialis, vastus lateralis, and tibialis anterior (p<0.05). Conclusion: The summary of the study results verified that the calcaneus fixation taping reduced the pain and dynamic quadriceps angle by providing stability in the ankle joints. It also produced efficient movement due to the difference in lower-limb muscle activity.

Genetic Variation and Population Structure of Crepidiastrum lanceolatum (Compositae)

  • Huh, Man-Kyu;Choi, Joo-Soo
    • Journal of Life Science
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    • v.12 no.1
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    • pp.9-13
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    • 2002
  • Crepidiastrum lanceolatum ($H_{OUTT}$) $N_{AKAI}$ (Compositae) is distributed in East Asia including Korea. Genetic diversity and population structure of six C. lanceolatum populations in Korea and two populations in Japan were determined using genetic variation at 19 allozyme loci. The percent of polymorphic loci within the enzymes was 42.1%. Genetic diversity at the species level and at the population level was low (Hes : 0.077; Hep : 0.068, respectively), where-as the extent of the population divergence was relatively low ($G_{ST}$ : 0.093). One of the most striking features of this study was the more significant difference within populations than among populations. An indirect estimate of the number of migrants per generation (Nm : 2.44) indicated that gene flow was moderate among eight populations of the species. In addition, analysis of fixation indices revealed a slight heterozygosity deficiency in some populations and at some loci. Narrow geographic ranges, short-lived perennial herbaceous, and small population sizes are mainly associated with the low level of genetic variation.n.

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Thoracolumbar Spine Injury (흉요추부 손상)

  • Ahn, Myun-Whan
    • Journal of Yeungnam Medical Science
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    • v.19 no.2
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    • pp.73-91
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    • 2002
  • Method of management of the spine injury should be determined, based on the status of neurological injury as well as on the presence of traumatic instability. At the thoracic and lumbar spine, patterns of neurological injury are different from the cervical spine due to their neuro-anatomical characteristics. Especially, at the thoracolumbar junction, neurological injury patterns with their respective prognosis vary from the complete cord injury or conus medullaris syndrome to the cauda equina syndrome according to the injury level. The concept of Holdsworth's instability based on the posterior ligament complex theory has evolved into the current 3-column theory of Denis. Flexion-rotation injury and fracture-dislocation are well known to be unstable that surgical fixation is frequently needed for these injuries. However, there have been some controversies for the stability of burst fractures and their treatment, such as indirect or direct decompression and anterior or posterior approach. In this article, current concepts and management of traumatic instabilities at the thoracic and lumbar spine have been reviewed and summarized.

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A Case of Traumatic Bilateral Abducens Nerve Palsy Associated with Skull Base Fracture (두개저 골절과 동반된 외상성 양측성 외전신경 마비 1례)

  • Hwang, Jeong In;Cho, Jin Seong;Lee, Seung Chul;Lee, Jeong Hun
    • Journal of Trauma and Injury
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    • v.21 no.1
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    • pp.66-69
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    • 2008
  • Traumatic bilateral abducens nerve palsy is rare and is associated with intracranial, skull and cervical spine injuries. We report a case of bilateral abducens nerve palsy in a 40-month-old patient with a skull base fracture. The injury mechanism was associated with direct nerve injury caused by a right petrous bone fracture and indirect injury by frontal impact on the abducens nerve at the point of fixation to the petrous portion and Dorello's canal. The emergency physician should be aware of injuries and the mechanism of abducens nerve palsy in head trauma.

Changes of Serum antibody Levels by Indirect Hemagglutination Test after Treatment in Clonorchiasis (IHA(Indirect hemagglutination test)를 이용한 간흡충증(肝吸虫症)의 면역혈청학적(免疫血淸學的) 진단(診斷)에 관한 연구(硏究) -ELISA법과의 비교(比較) 및 치료(治療) 전후(前後) 의 혈청항체가(血淸抗體價) 변동(變動)에 관하여-)

  • Joo, Kyoung-Hwan;Kim, Jong-Seong;Chung, Myung-Sook;Rim, Han-Jong
    • Journal of agricultural medicine and community health
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    • v.12 no.1
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    • pp.117-123
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    • 1987
  • Detection of IgG antibody in clonorchiasis has been accomplished through various serodiagnostic procedure including complement fixation test, gel diffusion test, indirect fluorescent antibody test, indirect hemagglutination test etc. In this report enzyme immunoassay (ELISA) and indirect hemagglutination test (IHA) were used to determine IgG serum antibody levels before and after therapy with praziquantel. Briefly, sera from 62 cases of confirmed human clonorchiasis were examined before and after treatment with praziquantel. Among 62 cases treated 25 cases were categorized as completely cured groups by formalin-ether and careful examination of 4 cellophane thick smered slides at 18 months after treatment. The sera of 25 cases of cured groups were examined again by ELISA and IHA, and com-pared to the previous data. The results obtained were as follows; 1) Sensitivity of IHA test was 83.6% when cut-off titer of 1:8 was applied. No sera obtained from 10 normal healthy control showed positive reaction. 2) Twenty cases (80.0%) out of 25 cured one showed negative results by IHA at 18 months after treatment. 3) Although 5 cases showed positive titer even 18 months after treatment 3 cases of them showed decreased antibody titer. However 2 cases did not show any response. 4) Even though almost all cases showed de- creased ELISA value, only 11 cases (44.0%) out of 25 patients showed negative results by ELISA at 18 months after treatment. In conclusion, it is suggested that, while IgG ELISA for detecting long persisting antibody was more sensitive than IHA, IHA results more conclusively indicated effective treatment in clonorchiasis by negative conversion than did the results of ELISA.

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Assessment of neovascularization during bone healing using contrast-enhanced ultrasonography in a canine tibial osteotomy model: a preliminary study

  • Jeon, Sunghoon;Jang, Jaeyoung;Lee, Gahyun;Park, Seungjo;Lee, Sang-kwon;Kim, Hyunwook;Choi, Jihye
    • Journal of Veterinary Science
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    • v.21 no.1
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    • pp.10.1-10.12
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    • 2020
  • Blood perfusion of skeletal muscle and callus was evaluated using contrast-enhanced ultrasonography (CEUS) in a canine osteotomy model to determine the applicability of CEUS in the assessment of neovascularization during fracture healing and to compare the vascular signals on CEUS between external skeletal fixation and cast-applied dogs. In 6 Beagle dogs, a simple transverse osteotomy was performed at the left tibial shaft and external skeletal fixation (n = 3) or a cast (n = 3) was applied. Radiography, power Doppler ultrasonography (power Doppler), and CEUS were performed until complete union was achieved. On CEUS, vascular changes were quantitatively evaluated by measuring peak intensity (PI) and time to PI in the soft tissue and callus and by counting the vascular signals. Vascular signals from the soft tissue were detected on power Doppler and CEUS on day 2. Significantly more vascular signals were detected by CEUS than by power Doppler. On CEUS, PI in the surrounding soft tissue was markedly increased after the fracture line appeared indistinctively changed on radiography in all dogs. In the cast-applied dogs, vascular signals from the periosteal and endosteal callus were detected on CEUS before mineralized callus was observed on radiography. CEUS was useful in assessing the vascularity of soft tissue and callus, particularly in indirect fracture healing, and provided indications of a normally healing fracture.

Assessment on Nitrous oxide (N2O) Emissions of Korea Agricultural Soils in 2009 (2009년 우리나라 농경지 토양에서의 N2O 배출량 평가)

  • Jeong, Hyun-Cheol;Kim, Gun-Yeob;Lee, Deog-Bae;Shim, Kyo-Moon;Lee, Seul-Bi;Kang, Kee-Kyung
    • Korean Journal of Soil Science and Fertilizer
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    • v.44 no.6
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    • pp.1207-1213
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    • 2011
  • This study was conducted to assess $N_2O$ emissions in agricultural soils of Korea. According to 1996 and 2006 IPCC (Intergovernmental Panel on Climate Change) methodology, $N_2O$ emission was calculated the sum of direct emission ($N_2O_{DIRECT}$) and indirect emission ($N_2O_{INDIRECT}$). To calculate $N_2O$ emissions, emission factor was used default of IPCC and activity data was used the food, agricultural, forestry and fisheries statistical yearbook of MIFAFF (Ministry for Food, Agriculture, Forestry and Fisheries). It was emitted 8,608 $N_2O$ Mg resulted from direct emission by application of chemical fertilizer and animal manure, input in n-fixation crops and input of crop residues and emissions converted $N_2O$ into $CO_2$ equivalent was 2,668 $CO_2$-eq Gg. Indirect emission as $N_2O_{(G)}$ (atmospheric deposition of $NH_3$ and $NO_X$) and $N_2O_{(L)}$ (leaching and runoffs) were 4,567 and 6,013 $N_2O$ Mg and emissions converted $N_2O$ into $CO_2$ equivalent were 1,416 and 1,864 $CO_2$-eq Gg, respectively. Total $N_2O$ emission in Korea agricultural soil in 2009 was 5,948 $CO_2$-eq Gg.

Allozyme Diversity and Population Genetic Structure in Korean Endemic Plant Species : II. Hosta yingeri (Liliaceae)

  • Chung, Myong Gi
    • Journal of Plant Biology
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    • v.37 no.2
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    • pp.141-149
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    • 1994
  • Levels of genetic diversity, population genetic structure, and gene flow in Hosta yingeri, a herbaceous perennial endemic to Taehuksan, Sohuksan, and Hong Islands, were investigated. Starch gel electrophoresis was conducted on leaves for 101 plants collected from three populations. Although the distribution of thespecies is restricted in the islands, it maintains high levels of genetic variatin; 64% of polymorphic loci in at least one population (Ps), the mean number of alleles per locus (Ap) of 1.92, and the mean effective number of alleles per locus (Aep) of 1.52. Overall, mean genetic diversity (Hep=0.250) was substantially higher than mean estimate for species with very similarlife history traits (0.102). Large populaton size, the persistence of multiple generations within populations, high fecundity, predominantly outcrossing breeding system, large size of pollinator visitation areas may be explanatory factors contributing the higher level of genetic diversity maintained within populations. Analysis of fixation indices showed an overall slight excess of heterozygotes (mean FIS=-0.066) relative to Hardy-Weinberg expectations, which may in part be due to the near self-incompatible breeding system in the species. Significant differences in allele frequencies among populaitns were found for 14 out of 16 polymorphic loci (P<0.05). Slightly more than 80% of the total variation in the species was common to all populations (GST=0.198). As expected, indirect estimate of the number of migrants per generation (Nm=0.45, calculated from mean GST) and nine private alleles found in the three populations indicate that gene movement among three isolated island populations was low.

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