The reliability of radiostereometric analysis in determining physeal motion in slipped capital femoral epiphysis in standard uniplanar and low-dose EOS biplanar radiography: a phantom model study Academic Article uri icon

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  • Physeal closure after slipped capital femoral epiphysis fixation can be difficult to assess on two-dimensional conventional radiographs. Radiostereometric analysis offers improved motion detection over conventional radiography, whereas the EOS biplanar imager provides a means for low radiation weight-bearing images. This phantom study assessed the reliability of measuring motion using radiostereometric analysis in the EOS using a slipped capital femoral epiphysis model. The accuracy and precision were better than 0.09±0.05 mm and 0.20°±0.36° when centered in the imaging space, were within the limits of clinical significance, and were not different from a standard uniplanar radiostereometric system.


  • Hurry, Jennifer K
  • Rehan, Saad
  • Spurway, Alan J
  • Laende, Elise K
  • Astephen-Wilson, Janie
  • Logan, Karl J
  • Dunbar, Michael J
  • El-Hawary, Ron

publication date

  • November 2018