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美国卫生研究院文献>Journal of Orthopaedics
>Wear performance of cobalt chromium ceramic and oxidized zirconium on highly crosslinked polyethylene at mid-term follow-up
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Wear performance of cobalt chromium ceramic and oxidized zirconium on highly crosslinked polyethylene at mid-term follow-up
Patients with THA using a ceramic head and using an OxZr head were each matched to patients with a CoCr head. Mean implantation time was 5 years. There was no difference in steady state wear rate between the ceramic (0.066 ± 0.050 mm/year) and CoCr match groups (0.052 ± 0.041 mm/year), or between the OxZr (0.022 ± 0.029 mm/year) and CoCr match groups (0.048 ± 0.071 mm/year). Follow-up into the second decade will be necessary before any changes in THA wear rate from using ceramic or OxZr bearings may be appreciated clinically with available imaging techniques.
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机译：使用陶瓷头和OxZr头的THA患者均与CoCr头患者匹配。平均植入时间为5年。陶瓷（0.066±±0.050 mm /年）和CoCr匹配组（0.052±±0.041 mm /年）或OxZr（0.022±±0.029 mm /年）和CoCr匹配组之间的稳态磨损率没有差异（ （0.048±0.071 mm /年）。在使用可利用的成像技术从临床上认识到使用陶瓷或OxZr轴承引起的THA磨损率的任何变化之前，有必要对第二个十年进行随访。
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