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Table 1 Comparison of early and late groups

From: Are component positioning and prosthesis size associated with hip resurfacing failure?

    

correlation between precision and experience

 

Early group (n = 100)

Late group (n = 261)

p-value

coefficient

p value

Mean anteroposterior stem-shaft angle in degrees (range)

2 (-20 to 28)

1 (-24 to 25)

0.107

0.64

< 0.001

Standard deviation of anteroposterior stem shaft angle in degrees

7

5

0.012

  

Mean lateral stem-shaft angle in degrees (range)

2 (-18 to 18)

3 (-19 to 25)

0.091

0.37

< 0.001

Standard deviation of lateral stem shaft angle in degrees

7

6

0.595

  

Mean acetabular cup inclination angle in degrees (range)

35 (14 to 54)

37 (18 to 65)

0.036

0.12

0.027

Standard deviation of acetabular cup inclination angle in degrees

8

7

0.275

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