Orthopaedic surgeons take several precautions before and during hip replacement surgery to try to optimize the way in which the ball and socket rub against each other so that fewer wear particles are produced. cobalt and chromium) from the metal implant or from the metal particles will enter the bloodstream.
Wear and corrosion at the connection between the metal ball and taper of the stem may also occur. The sliding metal surfaces will cause some tiny metal particles to wear off of the device into the space around the implant. Metal can also be released from other parts of the implant where two implant components connect. In MoM hip implants, the metal ball and the metal cup slide against each other during walking or running which can cause the release of metal particles. Metal-on-metal (MoM) hip implants have unique risks in addition to the general risks of all hip implants. All artificial hip implants carry risks including wear of the component material.
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