Skip to main content

Table 1 Posterior medial and lateral tibial slopes and reference axes measured on CT images and EOS radiographs by two readers

From: The EOS 3D imaging system reliably measures posterior tibial slope

  Posterior tibial slope Differences between axes on EOS
EOS medial EOS lateral CT medial CT lateral TA-ATC TA-IMA
Reader 1a 8.5 (7.9–9.0) 7.4 (6.8–8.1) 8.1 (7.6–8.7) 7.0 (6.4–7.7) 2.3 (2.2–2.5) 0.7 (0.5–1.0)
Reader 2a 8.5 (8.0–9.1) 7.4 (6.7–8.4) 7.2 (6.6–7.9) 6.9 (6.3–7.6) 2.2 (2.1–2.3) 0.6 (0.4–0.9)
Overallb 8.5 (8.1–8.9) 7.4 (6.9–7.9) 7.7 (7.3–8.1) 7.0 (6.5–7.4) 2.3 (2.2–2.4) 0.7 (0.5–0.8)
  1. Values in degrees (°) are the mean (95% CI)
  2. TA Tibial axis, ATC Anterior tibial cortex, IMA Intramedullary axis
  3. an = 112
  4. bn = 224