目的 探讨一期同体位前后联合入路手术治疗严重胸腰椎骨折脱位的治疗效果.方法 1998年10月至2005年9月手术治疗胸腰椎骨折脱位192例,对其中34例严重胸腰椎骨折脱位者采用一期同体位前后联合入路.男25例,女9例;年龄18~56岁,平均34.2岁.损伤节段:T11 2例,T12 5例,L1 11例,L2 8例,L3 5例,L4 2例,L4,5 1例.Magerl分型:A3型12例,B1型2例,
Two sand packs were filled with fine glass beads and quartz sand respectively. The characteristics of crosslinked polymer flowing through the sand packs as well
Zeolite beta with a low SiO2/Al2O3 ratio was synthesized by a novel two-step process. The synthesized sample was characterized with XRD,SEM,FTIR,and N2 adsorpti
The flow fields inside conventional and rotary hydrocyclones were simulated respectively. In these simulations,water only and oil-water mixture,with distinctly
The preparation of the iron-based catalysts promoted by cobalt with a small amount of copper and aluminum for the high temperature shift reaction (HTS) with dif
The mechanical behavior of TiNi alloy and Cr12MoV alloy under dynamic impact loading was investigated with a self-made impact testing system. The real-time cont
The factors affecting the development of Sinopec lubricating oil were analyzed in this paper,and an analytic hierarchy process (AHP) model for selecting lubrica
March 3,2007 is the 80th anniversary of the birth of Professor Kostantin Fedorovich Tyapkin. The Editorial Department of Petroleum Science and all the graduate
全球的耐多药肺结核治愈率在50%左右,外科干预后其治愈率可明显提高。本文从耐多药结核病是否需要外科治疗?哪些类型肺结核需要外科治疗?耐多药肺结核的手术适应证、手术时机及手术方式等方面进行了详述,同时指出,有手术适应证的耐多药肺结核患者经多学科会诊并获得患者的知情同意后,做好术前评估和术后并发症的预测,才能实施手术方案,达到不仅使患者个体受益,而且起到控制结核病传染源的作用。