The Journal of Arthroplasty
Volume 25, Issue 4 , Pages 529-532, June 2010

The Accuracy of Digital Templating in Uncemented Total Hip Arthroplasty

  • Patrick Gamble, MD

      Affiliations

    • Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
    • ,
  • Justin de Beer, MD, FRCSC

      Affiliations

    • McMaster University, Hamilton, Ontario, Canada
    • Hamilton Arthroplasty Group, Hamilton Health Sciences Henderson Hospital, Hamilton, Ontario, Canada
    • ,
  • Danielle Petruccelli, MLIS

      Affiliations

    • Corresponding Author InformationReprint requests: Danielle Petruccelli, MLIS, Hamilton Arthroplasty Group, Hamilton Health Sciences Henderson Hospital, 711 Concession St., Hamilton, Ontario, Canada L8V 1C3.
    • Hamilton Arthroplasty Group, Hamilton Health Sciences Henderson Hospital, Hamilton, Ontario, Canada
    • ,
  • Mitchell Winemaker, MD, FRCSC

      Affiliations

    • McMaster University, Hamilton, Ontario, Canada
    • Hamilton Arthroplasty Group, Hamilton Health Sciences Henderson Hospital, Hamilton, Ontario, Canada

Received 20 December 2008; accepted 7 April 2009. published online 03 June 2009.

Abstract 

We analyzed the reproducibility and reliability of computer templating in primary uncemented total hip arthroplasties as compared to standard onlay templating techniques with hardcopy radiographs from a digital source. Digital templating showed good intraobserver and interoberserver reliability with intraclass correlation coefficient values greater than 0.7. Using computer templating, prediction of sizing to within 1 size was 85% accurate for femoral stem sizing and 80% accurate for acetabular sizing. Using onlay templating, prediction of sizing to within 1 size was 85% accurate for femoral sizing and 60% accurate for acetabular sizing. We conclude that the introduction of digital templating has significant benefits in preoperative planning for total hip arthroplasty over onlay templating.

Keywords: digital templating, total hip arthroplasty, reliability, radiography

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 No benefits or funds were received in support of the study.

PII: S0883-5403(09)00116-8

doi:10.1016/j.arth.2009.04.011

The Journal of Arthroplasty
Volume 25, Issue 4 , Pages 529-532, June 2010

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