高倍手术显微镜下非选择性指尖离断再植

目的探讨高倍手术显微镜下非选择性指尖离断再植的方法和预后.方法对合并指腹瘀斑等条件不佳的35例38指非选择性指尖离断采取高倍手术显微镜下再植,观察术后成活情况、外形、感觉功能恢复情况.结果35例38指指尖离断,35指成活,成活率92.1%,随访观察5个月到1年,35指指甲无明显畸形,指体外形良好,两点分辨觉3mm~6mm.与文献报道指尖离断再植的成活率(1075指,成活率93.4%)相当(P>0.05).结论非选择性指尖离断采取高倍手术显微镜下进行再植,可以取得较高的成活率,达到良好的效果,临床上不要轻易对条件不佳的指尖离断放弃再植.     

Er:YAG激光在口腔种植中应用的研究进展

近年来,口腔种植迅速发展,在牙列缺失、缺损以及颌面部缺损修复治疗中的应用日趋广泛。由于Er:YAG激光具有对种植体表面形态改变小、产热少、杀菌效应强、能促进种植体-牙龈界面形成生物学封闭以及促进骨增加及骨整合等特点,它越来越受到人们重视。本文就Er:YAG激光在种植体表面处理、切割软组织、切除骨组织和种植体周围炎中的应用作一综述。     

负压封闭引流技术联合带真皮下血管网皮片移植修复足部感染性创面

目的探讨负压封闭引流（VSD）技术联合带真皮下血管网皮片移植修复足部感染性创面的疗效。方法对25例足部感染性创面患者使用VSD技术联合带真皮下血管网皮片移植修复。结果25例均获随访,时间3～6个月,23例伤口一期愈合,2例出现部分坏死,经换药延期愈合。结论采用VSD技术联合带真皮下血管网皮片移植是修复足部感染性创面的有效方法。     

桃红四物汤预防全髋关节置换术后深静脉血栓临床观察

目的：观察采用桃红四物汤预防全髋关节置换术后深静脉血栓临床疗效。方法：选取全髋关节置换术后患者68例,随机分为治疗组与对照组各34例,对照组予注射低分子肝素钠针等常规抗凝治疗,治疗组在常规抗凝基础上服用桃红四物汤,检查患者实验前后D-二聚体含量。结果：实验前两组患者的D-二聚体指数无统计学意义（P〉0.05）,术后治疗组患者D-二聚体含量与对照组比较差异具有统计学意义（P〈0.05）。结论：术后加服桃红四物汤具有调节血管壁通透性,降低血液黏稠度,保持血液流动正常,从而预防深静脉血栓的形成,值得临床推广应用。     

跟骨全解剖塑形复位内固定钛板的研制及其临床应用

目的设计一种用于治疗跟骨粉碎性骨折的全解剖带塑形复位功能的新型内固定钛板,评价其在治疗跟骨粉碎性骨折中的近期疗效。方法笔者自2012-01—2014-12共诊治60例跟骨粉碎性骨折,采用自行研制的一种全新的跟骨全解剖塑形复位钛板内固定治疗。其特点是全解剖结构,既有快速方便的塑形复位功能,又可对骨折行立体牢固的内固定,还能避免因剥离附着于跟骨外表面上的韧带及肌腱组织而造成二次损伤。结果 60例获得平均12(6~15)个月随访。骨性愈合时间为12~15周,平均13.2周,所有患者切口均一期愈合,无一例发生切口感染、皮肤缺血坏死及钢板外露,未出现术后跟骨再移位或钢板螺钉变形、断裂现象。术后1年疗效按Maryland足部评分系统评定:平均91.5(83~95)分,优50例(53足),良10例(12足),优良率为100%。结论本钛板为全解剖结构,设计巧妙合理,复位及固定效果优良,使用简单,易于操作,是各型跟骨骨折特别是粉碎性骨折的理想内固定材料。     

中药封包热敷结合皮瓣修复术治疗手部软组织缺损的疗效观察

目的:探讨中药封包热敷结合皮瓣修复术在手部软组织缺损治疗中的临床价值。方法:选取2015年8月-2016年9月我院收治的手部软组织缺损患者92例为研究对象,采用随机数字表法分为对照组46例,观察组46例,对照组行皮瓣修复术治疗,观察组在皮瓣修复术后结合中药封包热敷治疗,观察两组治疗效果、关节活动情况及疼痛情况。结果:对照组治疗优良率为78.26%,同观察组的93.48%对比明显较低,差异有统计学意义(P0.05);治疗前两组患者关节活动度及疼痛程度无显著差异(P0.05),治疗后1个月,观察组UEFI评分显著较对照组高,VAS评分明显较对照组低,差异有统计学意义(P0.05)。结论:中药封包热敷结合皮瓣修复术治疗手部软组织缺损疗效确切,可显著改善患者手部功能,减轻疼痛,值得推广。     

制备TiO2-xNx薄膜陶瓷托槽的抗菌性能

BACKGROUND: Enamel demineralization has been plaguing doctors and patients in the fixed orthodontic treatment, so we attempt to seek an effective method of reducing its incidence. OBJECTIVE: To prepare TiO₂-xNx thin films at different thicknesses on the ceramic bracket surface by sol-gel method followed by detection of antibiotic performance. METHODS: TiO₂-xNx thin films at different thicknesses were prepared on the ceramic bracket surface by sol-gel method. The crystal structure, surface morphology and attachment force of these thin films were analyzed by X-ray diffraction, scanning electron microscope and multi-function material surface tester, respectively. The color changes of ceramic brackets before and after coating were evaluated through German VITA Easyshade Advance 4.0 photoelectric color comparator. Antibiotic performance of the ceramic bracket coated with TiO₂-xNx thin film for Candida albicans and Streptococcus mutans was evaluated by the flat colony counting method. RESULTS AND CONCLUSION:The prepared TiO₂-xNx thin film was anatase type, which had uniform and compact structure, and its X-ray diffraction peaks were elevated with the increase of film thickness. The attachment force of the thickest film was 18.37 N, indicating the thin film has a good adhesion to the ceramic bracket and can withstand the friction in the oral cavity. The antibiotic performance of TiO₂-xNx thin film for Candida albicans and Streptococcus mutans was also enhanced as the thickness of the thin film tended to increase, while the color changes of the ceramic brackets coated with different thickness of TiO₂-xNx thin films were not significant. To conclude, the ceramic bracket coated with TiO₂-xNx film that does not affect the appearance has high antibacterial activity to common oral cariogenic bacteria and opportunistic pathogens, and the film can adhere well to the bracket.