Study |
Design and Follow-up |
HXLPE |
HEAD |
Follow-Up |
Mean Wear Rate mm/yr (After Bedding-In) |
Wear Rate Decrease |
Dorr et al. JBJS A 2005 |
Prospective, cohorts37 hips/37 |
Durasul95 kGy, remelted |
28 mm CrCo |
5 years |
0.029 vs 0.065 |
45% |
D’Antonio et al. CORR 2005 |
Retrospective, comparative56 hips/53 |
Crossfire105 KGy, annealed |
28 mm CrCo |
Mean 5 yr (min 4) |
0.036 vs 0.131 |
72% |
Engh et al. J Arthr 2006 |
Prospective, randomized 208 hips |
Marathon50 kGy, remelted |
28 mm CrCo |
5.7 yr(4.1-7.2) |
0.01 vs 0.19 |
95% |
Olyslaegers et al. J Arthr 2008 |
Case-control with historical60 hips/20 |
Longevity100 KGy, remelted |
28 mm CrCo |
XLPE 5.06 yr (52-69 mo),Std PE 5.1 yr (55-79) |
0.05 vs 0.101 |
50% |
García-Rey et al. J BJS-B 2008 |
Prospective, randomized45 hips/45 |
Durasul95 kGy, remelted |
28 mm CrCo |
66.3 mo(60-92) |
0.006 vs 0.038 |
84.3% |
Geerdink et al. CORR 2009 |
Randomized, double blind17 hips/23 |
Duration30 KGy,annealed |
28 mm CrCo |
Mean 8yr(7-9) |
0.088 vs 0.142 |
38% |