Meta-analysis of gap balancingversusmeasured resection techniques in total knee arthroplasty

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Abstract

Materials and Methods

In accordance with the methods of Cochrane, databases were searched for all randomised controlled trials in the literature between January 1986 and June 2015 comparing radiographic and clinical outcomes between the use of these two tecniques. Meta-analysis involved the use of the Revman5.3 software provided by Cochrane collaboration.

Results

A total of 1464 papers were initially identified, and after the application of rigourous inclusion and exclusion critera, eight were included in the study. In total they inolved 980 TKAs. The meta-analysis showed that GB techniques resulted in statistically significant improvements in the restoration of mechanical and rotational alignment and mean Knee Society Scores and Knee Society Function scores two years post-operatively, but resulted in greater elevation of the position of the joint line. There is no significant difference in the other radiographic data.

Conclusion

This study suggests that GB may provide better radiographic and clinical outcomes than MR when used to determine mechanical rotation in TKAs.

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