目的探讨氨甲环酸术前静脉给药及关节腔周围注射对膝关节置换术后失血的影响。方法 2014年1月—2015年6月,该院骨一科共74例关节置换的患者,随机分成两组,治疗组及对照组各37例,观察两组术后失血量,是否出现下肢深静脉血栓,术后3 h D-...目的探讨氨甲环酸术前静脉给药及关节腔周围注射对膝关节置换术后失血的影响。方法 2014年1月—2015年6月,该院骨一科共74例关节置换的患者,随机分成两组,治疗组及对照组各37例,观察两组术后失血量,是否出现下肢深静脉血栓,术后3 h D-二聚体、纤维蛋白原、活化的部分凝血酶时间。结果治疗组与观察组术后失血量分别为(483.62±157.54)m L与(1 257.46±226.86)m L,差异有统计学意义(P<0.05),术后下肢深静脉发生率、D-二聚体、FIB、APTT比较差异无统计学意义(P>0.05)。结论氨甲环酸术前静脉给药及关节周围注射能显著减少膝关节置换术后失血,且不增加下肢深静脉血栓的发生。展开更多
目的:比较人工髋关节置换(total hip arthroplasty THA)与防旋型股骨近端髓内钉(proximal femoral nail anti-rotation PFNA)两种方法治疗高龄股骨转子间骨折患者的效果。方法:利用THA及PFNA方法共治疗年龄大于80岁的股骨转子间骨折患者...目的:比较人工髋关节置换(total hip arthroplasty THA)与防旋型股骨近端髓内钉(proximal femoral nail anti-rotation PFNA)两种方法治疗高龄股骨转子间骨折患者的效果。方法:利用THA及PFNA方法共治疗年龄大于80岁的股骨转子间骨折患者126例,THA治疗80例,PFNA治疗46例,比较两组患者的手术时间,术中出血量,术后下床时间,住院天数,Harris评分,术后1年死亡率、并发症发生率。结果:THA组在手术时间、术中出血量、术后下床时间、住院天数、Harris评分优良率,术后1年死亡率、并发症发生率上均明显优于PFNA组,经统计学分析有显著差异。结论:THA治疗高龄股骨转子间骨折的疗效优于PFNA。展开更多
Amorphous ribbons with（Nd_（0.75）Pr_（0.25））_（9.5）Fe_（76）X_4B_（10.5）（X=Nb, Zr） nominal composition were annealed by conventional and microwave-assisted annealing furnaces, respectively. The thermal decompo...Amorphous ribbons with（Nd_（0.75）Pr_（0.25））_（9.5）Fe_（76）X_4B_（10.5）（X=Nb, Zr） nominal composition were annealed by conventional and microwave-assisted annealing furnaces, respectively. The thermal decomposition process, structure and magnetic properties of products were characterized by a thermal differential scanning calorimeter（DSC）, X-ray diffraction（XRD） and a vibrating sample magnetometer（VSM）. The addition of Nb and Zr increased the glass-forming ability（GFA） of as-spun ribbons. The proportion of Nd_2Fe_（14）B and α-Fe could be adjusted with power from 800 to 2000 W in microwave annealing process, during which the well-coupling between the soft and hard magnetic phase and higher coercivity reached up to 780.2 and 815.4 kA/m for（Nb,Zr）-doped alloys. The best magnetic properties of ribbons could be obtained by annealing at 650 oC for 10 min under the microwave power of 2000 W.展开更多
文摘目的:比较人工髋关节置换(total hip arthroplasty THA)与防旋型股骨近端髓内钉(proximal femoral nail anti-rotation PFNA)两种方法治疗高龄股骨转子间骨折患者的效果。方法:利用THA及PFNA方法共治疗年龄大于80岁的股骨转子间骨折患者126例,THA治疗80例,PFNA治疗46例,比较两组患者的手术时间,术中出血量,术后下床时间,住院天数,Harris评分,术后1年死亡率、并发症发生率。结果:THA组在手术时间、术中出血量、术后下床时间、住院天数、Harris评分优良率,术后1年死亡率、并发症发生率上均明显优于PFNA组,经统计学分析有显著差异。结论:THA治疗高龄股骨转子间骨折的疗效优于PFNA。
基金Project supported by State Key Laboratory for Advanced Metals and Materials of China(2013-Z02)the Project of Shanghai Science and Technology Committee(16090503600)
文摘Amorphous ribbons with（Nd_（0.75）Pr_（0.25））_（9.5）Fe_（76）X_4B_（10.5）（X=Nb, Zr） nominal composition were annealed by conventional and microwave-assisted annealing furnaces, respectively. The thermal decomposition process, structure and magnetic properties of products were characterized by a thermal differential scanning calorimeter（DSC）, X-ray diffraction（XRD） and a vibrating sample magnetometer（VSM）. The addition of Nb and Zr increased the glass-forming ability（GFA） of as-spun ribbons. The proportion of Nd_2Fe_（14）B and α-Fe could be adjusted with power from 800 to 2000 W in microwave annealing process, during which the well-coupling between the soft and hard magnetic phase and higher coercivity reached up to 780.2 and 815.4 kA/m for（Nb,Zr）-doped alloys. The best magnetic properties of ribbons could be obtained by annealing at 650 oC for 10 min under the microwave power of 2000 W.
