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Table 4 Comparison of polyethylene wear against yttria stabilized zirconia, cobalt chromium, and alumina 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

 

Mean Followup

Penetration Rate (mm/year)

P value

 

(years)

Yttria Stabilized Zirconia

Cobalt Chromium

Alumina

 

Stilling et al. [20]

    5

0.23

0.25

 

0.46

Cohn et al. [9]

    4

0.14

0.11

 

0.07

Kim [4]

    7

0.08

0.17

 

0

Kraay et al. [31]

    4

0.06

0.05

 

n.a.**

Nakahara et al. [13]

    7

0.03*

0.03*

 

0.77

Hernigou et al. [26]

    5

0.04

 

0.04

n.a.**

    12

0.41

 

0.07

0.01

Liang et al. [10]

    5

0.13

 

0.08

<0.01

  1. *highly cross-linked polyethylene.
  2. ** not available (no significance).
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BMC Musculoskeletal Disorders

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