Table 2.

Rate of axial subsidence (mm) and varus-/valgus tilt (°) measured in different CCD categories (A–E)

CCD category	n	Axial subsidence					Varus/valgus tilt
		Mean	SD	Median	95% CI		Mean	SD	Median	95% CI
A (7.0%)	14	−1.20	1.81	−0.65	−2.25	−0.15	−0.16	3.26	−0.15	−2.05	1.72
B (22.4%)	45	−1.02	1.21	−0.70	−1.38	−0.65	0.37	2.72	−0.20	−0.44	1.19
C (43.3%)	87	−1.44	1.34	−1.20	−1.72	−1.15	0.48	2.28	0.50	−0.01	0.96
D (20.9%)	42	−1.50	1.30	−1.35	−1.91	−1.10	0.01	2.94	−0.20	−0.90	0.93
E (6.5%)	13	−2.62	2.17	−2.20	−3.93	−1.30	0.86	2.70	0.80	−0.77	2.49
Total (100.0%)	201	−1.42	144	−1.20	−1.62	−1.22	0.34	2.61	0.20	−0.03	0.70
		Kruskal–Wallis test (df = 4): p = 0.043					Kruskal–Wallis test (df = 4): p = 0.502