Morphological Study of the Newly Designed Cementless Femoral Stem

Table 3

Femoral flare indices and their correlations.

			Pearson correlation coefficients, 𝑁=60; Prob > |𝑟| under H0: Rho = 0
			CFI			MCFI
	Mean	SD	ML	NO	AP	ML	NO	AP
CFI
Mediolateral	4.64	0.81	1.00	0.65	0.50	0.42	0.14	0.18
				<0.0001	<0.0001	0.0009	0.3025	0.1797
Neck-oriented	3.39	0.51	0.65	1.00	0.78	0.34	0.29	0.29
			<0.0001		<0.0001	0.0072	0.0241	0.0234
Anteroposterior	2.43	0.41	0.50	0.78	1.00	0.31	0.14	0.48
			<0.0001	<0.0001		0.0172	0.2776	<0.0001
MCFI
Mediolateral	2.41	0.25	0.42	0.34	0.31	1.00	0.61	0.45
			0.0009	0.0072	0.0172		<0.0001	0.0004
Neck-oriented	2.25	0.23	0.14	0.29	0.14	0.61	1.00	0.57
			0.3025	0.0241	0.2776	<0.0001		<0.0001
Anteroposterior	1.80	0.21	0.18	0.29	0.48	0.45	0.57	1.00
			0.1797	0.0234	<0.0001	0.0004	<0.0001

CFI: canal flare index; MCFI: metaphyseal canal flare index; SD: standard deviation; ML: mediolateral; AP: anteroposterior; and NO: neck-oriented.