Table 2.

Comparison of failure and non-failure groups

				correlation
	Failures (n = 23)	Non-failures (n = 330)	p-value	coefficient	p value
Mean anteroposterior stem-shaft angle in degrees (range)	0 (-14 to 12)	2 (-24 to 28)	0.488	0.08	0.725
Mean lateral stem-shaft angle in degrees (range)	1 (-18 to 19)	3 (-19 to 25)	0.219	0.27	0.283
Mean acetabular cup inclination angle in degrees (range)	37 (20 to 60)	37 (14 to 60)	0.875	0.17	0.428

NB: negative values indicate varus positioning in the anteroposterior plane, and anteversion in the lateral plane