Skip to main content

Advertisement

Table 2 Comparison of the two groups of cups with migration > 1 mm and cups with migration < 1 mm.

From: Migration pattern of cementless press fit cups in the presence of stabilizing screws in total hip arthroplasty

  Migration > 1 mm Migration < 1 mm
Number 6   101  
Male 2   34  
Female 4   62  
Right side 4   51  
Left side 2   50  
Age (years) 64.5 ± 23.9 62.9 ± 15.4
Size (cm) 162 ± 6.0 168 ± 10.0
Weight (kg) 76.8 ± 20.3 66.9 ± 18.0
BMI (points) 29.7 ± 9.4 27.2 ± 5.7
Primary surgery 5   98  
Revision surgery 1   3  
Follow-up (years) 2.5 ± 1.8 2.6 ± 1.7
Alpha Lock Plus     
Implant 6   68  
Duraloc     
Implant 0   33  
Cup size (mm) 53.0 ± 5.5 53.3 ± 3.3
Ball size (mm) 31.3 ± 1.6 30.8 ± 2.1
Screws (number) 2.5 ± 1.2 2.0 ± 0.3
Screws (length) 25.0 ± 8.3 33.2 ± 6.6
Cup inclination (°) 52.6 ± 11.2 39.2 ± 7.3
Cup anteversion (°) 12.6 ± 7.2 16.7 ± 5.6
  1. Note that there was no statistically significant difference between the groups.