METAL-ON-METAL HIP REPLACEMENTS MORE PRONE TO FAILURE
Recently, British regulators voiced concerns about the potential for metal-on-metal hip replacements to generate metallic debris that could enter into the bloodstream and damage muscle and bone. Now, a new study on the failure rates of hip replacements raises further concerns about the metal-on-metal implants. Data from over 400,000 hip replacements in England and Wales show that metal-on-metal hips have a higher failure rate than metal-on-plastic or ceramic-on-ceramic implants. In light of the findings, researchers say this type of implant should no longer be used.
http://www.bbc.co.uk/news/health-17337993