文献抄读(2012-03-09)1.ppt

1、Cannulated Screw and Cable are Superior to Modified TensionBand in the Treatment of Transverse Patella Fractures,101 patients with a mean age of 56, were selected for the study. All of the patients were suffered patellar fractures with AO classification of 34-C1 and C2. Among those patients, 49 were

2、 performed cable-cannulated screw fixation, and 52 were performed modified k- wire fixation.,Titanium cable-cannulated screw tension band fixation,The figure are showing the method of cable-cannulated screw fixtion. Firstly ,two k-wires were introduced pass through the patellar fractures. Then ,the

3、cannulated screw were screwed along with the k- wire. And two cables were threaded through the screws and tightened the fracture.,Fracture fragment gaps, knee functional rehabilitations, fracture healing times, and complications were evaluated and compared between two types of fixations.,Conclusion

4、: The cable-cannulated screw tension band technique showed superior results and could be considered as an alternative method for treatment of transverse patellar fractures.,Can Computer Assistance Improve the Clinical and Functional Scores in Total Knee Arthroplasty?,73 patients were selected for an

5、alysis with a follow-up at lest 8 years. 36 patients were operated with the aid of computed navigation, and 37 patients were performed standard arthroplasty surgery.,wireless image-free navigation system (Stryker Image Free Computer Navigation System, versions 1.2 and 1.3; Stryker- Leibinger, Freibu

6、rg, Germany).,The patients in the navigated group had more ideally positioned implants (p0.001) than those in the standard group,1.KSS (knee and functional scores);2.Implant survival rates at 8 years;,There is no differences in clinical and functional evaluation or in survival rates at 8 years,Major

7、 complications (those requiring revision surgery) were similar between groups,Several studies reported previously were also reviewed.,The authers also reviewed several studies reported previously. And only one study declaimed that the navigation system could achieved better functional result compari

8、ng to the standard operation. But rest 4 studies consider there is no difference between both of the methods.,Conclusions: In the midterm, there is no difference in functional and clinical scores or implant survival between TKAs performed with and without the assistance of a navigation system.,Treat

9、ment of Early Postoperative Infections after THA: A Decision Analysis,Several studies were reviewed and selected as materials for sensitivity analysis. Most of the studies were reported previously, and mainly focus on the infection and functional rehabilitations after total hip arthroplasty.,Includi

10、ng critieria: The patient who presents 3 weeks after a cementless primary THA with a deep periprosthetic joint infection. Infection free critieria: a period greater than 2 years without additional surgery for treating the infection, with or without long-term suppressive antibiotics.,Here is a proced

11、ure trees describing the infection therapeutic strategies. Three methods could be used for infection control, including open irrigation/debridement, single stage exchange, and two stage exchange.,A technique termed sensitivity analysis uses for a numerical calculation to evaluate the effect of infec

12、tion control method.,Infection control-Health-related quality of life,a one-stage exchange led to the highest chance of obtaining the maximum final health-related quality of life, of which the success rate of infection control and recovery of quality of life is over 65%.,By the one-way sensitivity a

13、nalysis, a one-stage exchange was the treatment for early THA infection that maximized quality of- life outcomes if the probability of controlling the infection exceeded 66% with this procedure. If the probability of infection control of a one-stage exchange was less than 66% or that of irrigation a

14、nd debridement was greater than 60%, then irrigation and debridement appeared to result in the greatest quality-of-life outcome. When the success rate of two-stage exchange was varied from 0% to 99% success, there was no threshold above which a two-stage exchange would lead to the greatest quality of life.,By the two-way sensitivity analysis, When the p