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Related Experiment Video

Updated: Jun 24, 2026

The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report
07:45

The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report

Published on: August 4, 2022

Digital templating in hip replacement with and without radiological markers.

G Heinert1, J Hendricks, M D Loeffler

  • 1Department of Radiology, Colchester General Hospital, Turner Road, Colchester CO4 5JL, UK. Gideon.heinert@doctors.org.uk

The Journal of Bone and Joint Surgery. British Volume
|April 2, 2009
PubMed
Summary

Digital templating for hip replacement can use radiological markers or distance measurements to determine magnification. Both methods are equally accurate, but the distance method avoids marker placement issues, offering a simpler alternative for accurate surgical planning.

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Area of Science:

  • Orthopedic Surgery
  • Radiology
  • Medical Imaging

Background:

  • Digital templating is crucial for hip replacement surgery.
  • Magnification determination is essential for accurate templating.
  • Current methods often rely on radiological markers.

Purpose of the Study:

  • To compare the accuracy and radiation dose of radiological markers versus a distance measurement method for magnification determination in hip replacement templating.

Main Methods:

  • Post-operative radiographs of 22 total hip replacements and hemiarthroplasties were analyzed.
  • Magnification was calculated using both radiological markers and object-to-image distance.
  • Accuracy was assessed by comparing projected implant head size to known measurements.

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Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
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Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty

Published on: February 27, 2018

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Last Updated: Jun 24, 2026

The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report
07:45

The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report

Published on: August 4, 2022

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
09:31

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty

Published on: February 27, 2018

Main Results:

  • Both methods demonstrated similar accuracy, with mean absolute errors of 2.6% (radiological marker) and 2.8% (distance method).
  • Radiation doses were comparable between the two methods (328 mSv vs. 324 mSv).
  • The distance method showed no statistically significant difference in accuracy or radiation dose compared to the marker method.

Conclusions:

  • The distance measurement method is a viable and accurate alternative to radiological markers for magnification determination in hip replacement templating.
  • This method may offer advantages by eliminating potential marker misplacement issues.
  • The distance method is as accurate and radiation-efficient as the radiological marker method.