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Bone & Joint Research
Vol. 4, Issue 3 | Pages 29 - 37
1 Mar 2015
Halim T Clarke IC Burgett-Moreno MD Donaldson TK Savisaar C Bowsher JG

Objectives

Third-body wear is believed to be one trigger for adverse results with metal-on-metal (MOM) bearings. Impingement and subluxation may release metal particles from MOM replacements. We therefore challenged MOM bearings with relevant debris types of cobalt–chrome alloy (CoCr), titanium alloy (Ti6Al4V) and polymethylmethacrylate bone cement (PMMA).

Methods

Cement flakes (PMMA), CoCr and Ti6Al4V particles (size range 5 µm to 400 µm) were run in a MOM wear simulation. Debris allotments (5 mg) were inserted at ten intervals during the five million cycle (5 Mc) test.


Bone & Joint 360
Vol. 2, Issue 4 | Pages 36 - 36
1 Aug 2013
Herbert B Hao J Mauffrey C