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Table 4 EBRA measurements of total migration and total wear at each follow-up

From: The concept of a cementless isoelastic monoblock cup made of highly cross-linked polyethylene infused with vitamin E: radiological analyses of migration and wear using EBRA and clinical outcomes at mid-term follow-up

  Months n Mean SD Median Min Max
Total migration (mm) 0 44 0.00 0.00 0.00 0.00 0.00
3 36 0.34 0.41 0.23 0.00 2.07
12 50 0.80 0.71 0.56 0.00 2.81
24 48 0.86 0.62 0.70 0.00 2.56
60 42 1.34 0.63 1.26 0.09 3.14
Total migration rate (mm/year) 3 36 1.89 2.57 0.88 0.00 11.53
12 50 0.72 0.63 0.48 0.00 2.35
24 48 0.29 0.21 0.21 0.00 0.83
60 42 0.21 0.10 0.19 0.01 0.47
Total wear (mm) 0 44 0.00 0.00 0.00 0.00 0.00
3 36 0.11 0.12 0.06 0.00 0.54
12 50 0.18 0.17 0.15 0.00 0.78
24 48 0.28 0.17 0.26 0.00 0.68
60 42 0.40 0.24 0.32 0.03 1.00
Total wear rate (mm/year) 3 36 0.61 0.70 0.38 0.00 2.72
12 50 0.17 0.15 0.13 0.00 0.67
24 48 0.09 0.05 0.09 0.00 0.26
60 42 0.06 0.04 0.05 0.00 0.17
  1. EBRA Einzel-Bild-Roentgen-Analyse