Metal on metal total hip resurfacing systems consist of a trimmed femoral head capped with a metal covering.
Metal on metal hip resurfacing problems 2017.
Any damaged bone and cartilage within the socket are removed and replaced with a metal.
In 2017 the medicines and healthcare products regulatory agency mhra published updated guidelines on monitoring patients with all types of metal on metal hip implants.
This debris is particles ions of cobalt and chromium that make up the implant.
Metal on metal mom hip implants have unique risks in addition to the general risks of all hip implants.
However some metal on metal implants can fail increasing the amount of wear and producing small amounts of debris.
Check ups are a precautionary measure to reduce the small risk of complications and monitor patients who have had the devices implanted for a long time.
J bone joint surg br.
Mhra is updating advice provided in mda 2012 036 to assist the early detection of soft tissue reactions in patients implanted with metal on metal mom hip replacements mda 2017 018.
Matthies a underwood r cann p et al.