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Table 2 The ICCs for intra-observer reliability

From: Intra- and inter‐observer reliability of implant positioning evaluation on a CT-based three‐dimensional postoperative matching system for total knee arthroplasty

Index Component Alignment Rater ICC 95 %CI
Traditional mechanical axis Femoral Varus - Valgus 1 0.92 0.78–0.97
2 0.98 0.94–0.99
3 0.87 0.66–0.95
Flexion - Extension 1 0.49 0.00–0.79
2 0.80 0.51–0.93
3 0.80 0.51–0.93
Tibial Varus - Valgus 1 0.78 0.47–0.92
2 0.88 0.69–0.96
3 0.93 0.81–0.98
Anterior - Posterior Slope 1 0.91 0.76–0.97
2 0.94 0.83–0.98
3 0.91 0.76–0.97
Implant-based axis Femoral Varus - Valgus 1 0.93 0.81–0.98
2 0.97 0.92–0.99
3 0.85 0.62–0.95
Flexion - Extension 1 0.50 0.02–0.79
2 0.72 0.36–0.89
3 0.75 0.41–0.91
Tibial Varus - Valgus 1 0.86 0.64–0.95
2 0.86 0.64–0.95
3 0.94 0.83–0.98
Anterior - Posterior Slope 1 0.93 0.81–0.98
2 0.95 0.86–0.98
3 0.89 0.71–0.96
  1. CI confidence interval