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Table 5 Summary of highly cross-linked polyethylene wear against yttria stabilized zirconia heads

From: In vivo wear performance of highly cross-linked polyethylene vs. yttria stabilized zirconia and alumina stabilized zirconia at a mean seven-year follow-up

    Polyethylene Zirconia N Mean followup Steady-state wear rate P value
     (years) Yttria stabilized zirconia Cobalt chromium  
      (mm/year)  
Nakahara et al. [13] Longevity (Zimmer) (NGK) 51 7 −0.01 −0.01 0.83
Kawate et al. [16] Aeonian (JMM) (JMM) 32 5 0.00 0.01 0.36
Fukui et al. [17] Longevity (Zimmer) (NGK) 45 5 0.01   
Miyanishi et al. [15] Aeonian (JMM) (JMM) 95 2 0.06   
Present study Excellink (JMM) (JMM) 91 7 0.02