Reliability of a PowerPoint Method for Wear Measurement After Total Hip Arthroplasty. A Retrieval Study Using 3-Dimensional Laser Scanning

Ho Hyun Yun, Won Yong Shon, Jung Ro Yoon, Jae Hyuk Yang, Deuk Soo Lim

Research output: Contribution to journalArticle

8 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)1530-1537
Number of pages8
JournalJournal of Arthroplasty
Issue number8
Publication statusPublished - 2012 Sep 1



  • Hip
  • PowerPoint method
  • Total hip arthroplasty
  • Wear
  • Wear measurement

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

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