Skip to main content

Advertisement

Table 3 Postoperative radiographic measurements

From: Influence of surgical approach on component positioning in primary total hip arthroplasty

Variable Group A (MIS) Group B (standard)
  THA Healthy hip THA Healthy hip
Hip offset (mm) 69.6 ± 7.0 70.5 ± 8.2 69.1 ± 5.6 70.9 ± 7.6
p Value 0.697 0.127
Acetabular offset (mm) 29.4 ± 2.8 32.9 ± 4.0 28.7 ± 3.4 33.4 ± 3.8
p Value <0.001 <0.001
Femoral offset (mm) 40.2 ± 6.1 37.5 ± 6.0 40.4 ± 4.4 37.5 ± 6.1
p Value 0.027 0.010
Superior placement of the COR (mm) 17.9 ± 3.8 12.8 ± 2.9 18.0 ± 3.4 12.7 ± 3.1
p Value <0.001 <0.001
Leg length differencea (mm) 3.0 ± 4.8   3.5 ± 4.6  
p Value   0.354   
Stem alignment (varus/valgus) (°) 0.8 ± 1.0   0.5 ± 1.0  
p Value   0.101   
Cup inclination (°) 42.9 ± 5.4   35.9 ± 4.3  
p Value   <0.001   
Cup anteversion (°) 22.0 ± 8.8   18.1 ± 6.2  
p Value   0.014   
  1. All values are expressed as mean ± standard deviation; abetween healthy and operated hip