Table 2.

Radiographic measures five (5 yr) and ten (10 yr) years after surgery, with their evolutions between time points

Measures	Time points		Evolution
	5 yr n = 87	10 yr n = 68	10–5 yr n = 66
Coronal view
Femoral angle α (°)	92.4 [87.1; 94.3]	94.2 [92.6; 96.0]	1.5 [− 0.4; 7.4]
Tibial angle β (°)	88.5 [87.7; 89.4]	89.2 [87.8; 90.0]	0.4 [− 1.0; 2.0]
Total valgus angle α + β (°)	180.7 [175.9; 182.8]	182.8 [181.4; 185.2]	2.6 [0.3; 8.2]
Sagittal view
Femoral angle γ (°)	2.1 [3.3; 1.2]	1.1 [− 0.6; 2.3]	− 1.3 [− 2.5; 0.3]
Tibial angle δ (°)	86.0 [84.6; 88.0]	86.9 [85.3; 88.3]	0.2 [− 1.2; 2.3]

Data are reported as median [25th percentile; 75th percentile]

n number of prostheses

Statistically significant changes between time points are bolded (p ≤ 0.05)