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1 Engineering of Biomaterials

1 2008

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The evaluation of the influence of head implant surface roughness on the wear of UHMWPE cup

Sedlacek R., Tuzarova Z.

Engineering of Biomaterials

2008

Vol. 11, no. 77-80

13--14

The aim of this study was the evaluation of the influence of head surface roughness on the wear of the acetabular component of implant. The experiments were executed for the combination of UHMWPE (Ultra High Molecular Weight Polyethylene) implant cup and metal head of implant with several different surface roughnesses. Testing method was based on Pin-on-Disc principle. Finally the recommendation for head surface roughness was established. The special experiments were carried out in accredited “Mechanical Testing Laboratory” (quality system ISO 17025) in collaboration with the Academy of Sciences of the Czech Republic and company BEZNOSKA Corporation - developing and producing bone-substitute biomaterials and implants.