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Effect of ion implantation on the tribology of metal-on-metal hip prostheses.
| Titel | Effect of ion implantation on the tribology of metal-on-metal hip prostheses. |
| Publication Type | Journal Article |
| Year of Publication | 2004 |
| Authors | Bowsher JG, Hussain A, Williams P, Nevelos J, Shelton JC |
| Journal | The Journal of arthroplasty |
| Volume | 19 |
| Issue | 8 Suppl 3 |
| Pagination | 107-11 |
| Date Published | 2004 Dec |
| ISSN | 0883-5403 |
| Schlüsselwörter | Hüftarthrose, Hüftprothese, McMinn, Metallallergie, Nitrogen, Prosthesis Design, Prosthesis Failure, Prosthesis Fitting |
| Zusammenfassung | Nitrogen ion implantation (which considerably hardens the surface of the bearing) may represent one possible method of reducing the wear of metal-on-metal (MOM) hip bearings. Currently there are no ion-implanted MOM bearings used clinically. Therefore a physiological hip simulator test was undertaken using standard test conditions, and the results compared to previous studies using the same methods. N2-ion implantation of high carbon cast Co-Cr-Mo-on-Co-Cr-Mo hip prostheses increased wear by 2-fold during the aggressive running-in phase compared to untreated bearing surfaces, plus showing no wear reductions during steady-state conditions. Although 2 specimens were considered in the current study, it would appear that ion implantation has no clinical benefit for MOM. |
| Alternate Journal | J Arthroplasty |
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