Table 3.

Angles measured on the medial side with respect to the anteroposterior diaphyseal axis for the femoral (α) and tibial (β) components; posterior angles between the axis of the implant and the femoral (γ) and tibial (δ) diaphyseal axis according to the Knee Society Roentgenographic Evaluation System [11]

	α angle	β angle	γ angle	δ angle
All implants	94.4° (95% CI 93.9°–94.8°)	89.1° (95% CI 88.7°–89.5°)	3.6° (IC 95%:3.6°–3.9°)	88.6° (95% CI 88.2°–88.9°)
Revisioned implants	93.5° (95% CI 91.5°–95.5°)	87.9° (95% CI 86.2°–89.6°)	3.7° (IC 95%:2.6°–4.8°)	89.9° (95% CI 87.7°–90.1°)
Nonrevisioned implants	95.5° (95% CI 94.0°–95.1°)	89.3° (95% CI 88.8°–89.8°)	3.6° (IC 95%:3.1°–4.1°)	88.8° (95% CI 88.4°–89.4°)