三维骨建模在全膝关节置换术中韧带平衡的作用

目的探讨以三维骨建模为基础、无需影像的计算机辅助系统在人工全膝关节置换术(totalknee arthroplasty,TKA)中韧带平衡的作用。方法2002年11月～2003年6月,采用后稳定型人工全膝关节,在Ceravision无需影像资料的三维骨建模系统导航监控下,辅助完成TKA21例。男5例,女16例,年龄64～79岁,平均72.4岁。其中2例既往行胫骨近端截骨术,1例行股骨远端截骨术。14例膝内翻,7例膝外翻。术前下肢全长X线正位片测量,内翻13°～外翻13°,平均2.36°;膝关节X线正位片测量,应力下内翻平均8.47°(内翻2°～内翻20°),应力下外翻平均3.63°(内翻7°～外翻12°)。结果术中导航系统测量,额面内翻12°～外翻10°,平均3.33°,与术前比较差异有统计学意义(P<0.05);额面应力下内翻平均6.47°(内翻0°～内翻24°),应力下外翻平均4.32°(内翻8°～外翻15°),与术前比较差异有统计学意义(P<0.05)。术毕导航系统测得膝内外翻平均0.175°(内翻2°～外翻3°),而术后下肢全长X线正位片测量平均0.3°(内翻3.5°～外翻1.5°),二者差异无统计学意义(P>0.05)。术后3个月关节活动度为105～130°,平均115°,膝关节额面松弛度0.2～0.5cm,平均0.27cm。人工膝关节胫、股骨假体取得满意的对位置入和韧带平衡,无关节失稳和髌骨脱位等并发症发生。结论以三维骨建模为基础、无需影像的Ceravision系统,具有三维立体定位、优化截骨,并通过旋转对位和韧带松解获得伸屈膝关节等距间隙与韧带平衡稳定的作用,近期临床疗效满意,可在TKA中常规使用。     

手术治疗老年股骨颈骨折体会

老年人因骨质疏松,股骨颈脆弱,再加上外伤,会导致骨断筋伤而发生股骨颈骨折,本文对2003～2008年我院收治的85例股骨颈骨折老年患者的治疗进行回顾性分析。     

The correlation between TNF-α, IL-6 in cervical mucous during follicular development and ovulation stimulation in different protocols

Objective To investigate the correlation between TNF-α and IL-6 levels in cervical mucous during follicular development and ovulation stimulation in different protocols.Methods 36 infertile women were set up as experimental groups,divided into CC, HMG, IVF-ET group,each group consisted of 12 infertile women and 15 women with normal menstrual cycles were choiced as control group.Cervical mucous during follicular phase, luteal phase and ovulation phase were collected.TNF-α, IL-6 levels in cervical mucous were measured by radioimmunology assay (RIA).Follicular development were monitored by transvaginal ultrasonagraphy.Results (1) TNF-α levels in cervical mucous of experimental groups and control group were periodically various among the reproductive cycle.It increased during follicular phase, reached to peak during ovulation phase, and decreased during luteal phase (P＜0.05).IL-6 levels had no obvious periodical changes.(2) Compared with CC and control group, levels of TNF-α,IL-6 in HMG and IVF-ET group were significantly higher (P＜0.05).(3) Levels of TNF-α and IL-6 in cervical mucous were positively correlated with the dominant follicle diameter (r=0.261, r=0.192 respectively,P＜0.05).(4) TNF-α and IL-6 showed positive correlation in the reproductive cycle (r=0.782,P＜0.05).Conclusions (1) TNF-α level shows a cyclic change in the reproductive cycle and peaks during ovulation,whereas IL-6 level does not.(2) TNF-α and IL-6 may play a certain role in the process of follicular development and ovulation.(3)The levels of TNF-α and IL-6 are up-regulated by gonadotrophic hormone.(4) TNF-α and IL-6 may have coordination properties and participate in the same biological effects.     

氧合液早期应用对急性颅脑损伤治疗的临床研究

颅脑损伤者常伴有各种不同程度的呼吸功能障碍．这是颅脑损伤后一系列病理生理改变的重要因素之一。一般临床常压吸氧难以纠正缺氧．同时呼吸道梗阻气管切开、深昏迷、病情危重的患者不适宜做高压氧舱。笔者采取氧合液静脉输入．纠正体内缺氧及脑缺氧，增加需氧含量。提高氧分压，在颅脑外伤早期．应用氧合液治疗的基础和临床研究鲜有报道。2004年9月至2005年6月．笔者采用双盲对照实验的方法治疗了50例急性颅脑损伤患者．取得较好疗效。现报告如下。     

Comparison of clinical outcomes of frozen-thawed blastocysts transfer in natural and hormonally controlled cycles

Objectives:To assess the clinical outcomes of frozen-thawed blastocysts transfer in natural and hormonally controlled cycles.Methods:A retrospective analysis of natural and hormonally controlled cycle for 246 frozen-thawed blastocyst transfer cycles,the clinical pregnancy rate,implantation rate,early abortion rate were compared.Results:Of the 192 hormonally controlled cycles,the cancel rate,clinical pregnancy rate per ET,implantation rate and abortion rate were 7.3%(14/192),53.9%(96/178),38.8%(131/338)and 11.5%(11/96)respectively,whereas in 54 natural cycles,these rates were 16.7%(9/54),68.9%(31/45),52.9%(45/85)and 16.1%(5/31)respectively.There was no significant difference between the two groups with regard to the clinical pregnancy and abortion rate per ET,but the cancel rate and implantation rate were higher in natural cycles.However,the pregnancy and implantation rates of patients without PCOS in hormonal control cycles(57.2%,40.9%)were similar with those in natural cycles(P>0.05).Conclusion:These findings suggested that both hormonally controlled and natural cycles had similar pregnancy outcomes in frozen-thawed blastocysts transfer.     

CCL3L1融合蛋白的表达纯化及其多克隆抗体的制备

目的 表达和纯化CCL3L1融合蛋白,并对其免疫原性进行分析.方法 应用分子生物学技术将pGEX-4T-1-CCL3L1质粒进行酶切,收集CCL3L1片段与pET-32a(+)表达载体连接,构建pET-32a(+)-CCL3L1重组质粒,将其转化BL-21大肠埃希菌进行蛋白表达并纯化.应用酶切鉴定、SDS-PAGE及Western blot等方法确保基因片段的正确性及表达蛋白的特异性.以间接ELISA法测定BABL/c小鼠多克隆抗体滴度.结果 成功获得了高纯度的CCL3L1融合蛋白,且该蛋白为可溶性表达,以其制备的多克隆抗体滴度最高可达1:51 200.结论 获得高纯度可溶性表达的CCL3L1融合蛋白及其高效价的多克隆抗体.     

大学本科急诊医学专业教学模式探讨

目的:为适应医学模式的转变,使医学人才的培养与卫生事业改革和发展相适应,培养和建设一支社会急需的高素质的急诊医师队伍.方法:南京医科大学于临床医学专业中增设急诊医学专业,并以此探索大学本科五年制急诊医学专业的教学模式.结果:在两年的教学实践中,逐步建立了有效的教学模式,制定了一套切实可行的教学方法及管理制度,使学生掌握了较为全面的、扎实的急诊医学知识及技能,为以后的发展打下了良好的基础.结论:急诊医学专业教学模式符合社会进步、医疗改革的要求.     

676张疫情报告卡质量分析

６７６张疫情报告卡质量分析吴昊笔者对宁夏中宁县１９９６年１～１２月上报的６７６张传染病报告卡片作了分析。１９９６年１～１２月共上报卡片６７６张，其中填写规范合格的３２０张，合格率仅４７．３４％，不合格的３５６张，占５２．６６％。不合格原因：①患者地址...     

非核苷类逆转录酶抑制剂耐药研究

随着高效抗逆转录病毒治疗(HAART)的临床应用,患者的生存期显著延长了,抗药性成为日渐突出的问题。NNRTIs的抗药屏障较弱,一类药物耐药突变的出现可能导致整类药物的治疗失败。本文阐述了HIV突变产生的机制,NNRTIs耐药的分子生物学基础,主要突变及其他突变产生后引起的药物相互作用及后果,从而为更好的应用NNRTIs提供理论依据。