Abstract
The purpose of this study was to evaluate the reliability of the PowerPoint (PP) (2007
Version; Microsoft, Redmond, Wash) method for measuring polyethylene liner wear after
total hip arthroplasty. Seventeen retrieved polyethylene liners were included in this
study. Wear volumes were calculated using the PP, the Dorr and Wan, and 3-dimensional
(3D) laser scanning methods. Spearman correlation coefficients for wear volume results
indicated strong correlations between the PP and 3D laser scanning methods (range,
0.89-0.93). On the other hand, Spearman correlation analysis revealed only moderate
correlations between the Dorr and Wan and 3D laser scanning methods (range, 0.67-0.77).
The PP method can be used to monitor linear wear after total hip arthroplasty and
could serve as an alternative method when computerized methods are not available.
Keywords
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Article info
Publication history
Published online: April 13, 2012
Accepted:
December 23,
2011
Received:
April 4,
2011
Footnotes
The Conflict of Interest statement associated with this article can be found at doi:10.1016/j.arth.2011.12.025.
Identification
Copyright
© 2012 Elsevier Inc. Published by Elsevier Inc. All rights reserved.
