Safety Alert for MITCH TRH acetabular cups/MITCH TRH modular heads (Finsbury Orthopaedics) implanted with uncemented Accolade femoral stems (Stryker Orthopaedics)

According to Department of Health, this safety alert involved a device in Hong Kong that was produced by Finsbury Orthopaedics.

What is this?

Alerts provide important information and recommendations about products. Even though an alert has been issued, it does not necessarily mean a product is considered to be unsafe. Safety Alerts, addressed to health workers and users, may include recalls. They can be written by manufacturers, but also by health officials.

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  • Type of Event
    Safety alert
  • Date
    2012-04-03
  • Event Country
  • Event Source
    DH
  • Event Source URL
  • Notes / Alerts
    Hong Kong data is current through September 2018. All of the data comes from the Department of Health (Hong Kong), except for the categories Manufacturer Parent Company and Product Classification.
    The Parent Company and the Product Classification were added by ICIJ.
    The parent company information is based on 2017 public records. The device classification information comes from FDA’s Product Classification by Review Panel, based on matches of data from the U.S. and Hong Kong.
  • Extra notes in the data
    Medical Device Safety Alert
  • Reason
    Mhra issued new advice about metal-on-metal total hip replacements: mitch trh acetabular cups/mitch trh modular heads (finsbury orthopaedics) implanted with uncemented accolade femoral stems (stryker orthopaedics) the united kingdom (uk) medicines and healthcare products regulatory agency (mhra) issued advice to orthopaedic surgeons to stop implanting mitch trh acetabular cups/mitch trh modular heads in combination with uncemented accolade femoral stems. it is because this particular combination has a high revision rate (10.7%) compared to other types of hip implant. the mhra also provided follow-up recommendations to patients with this combination of implant. the mitch trh system is a metal-on-metal hip replacement system consisting of components that can be used in different combinations to carry out either hip resurfacing arthroplasty or total hip replacement. the system was manufactured by finsbury orthopaedics and was distributed in the uk by stryker orthopaedics between may 2006 and october 2011. analysis of data from the england and wales national joint registry (njr) up to 10 march 2012 has shown that the cumulative revision rate for mitch trh system total hip replacements (revision rate of 8.8% at 4 years based on 445 patients recorded by the njr) is higher than indicated as acceptable by the national institute for health and clinical excellence. further analysis of njr data has now determined that the cumulative revision rate of mitch trh system total hip replacements varies considerably depending upon which femoral stem is used: mitch trh with exeter v40 – revision rate of 3.7% at 4 years based on 120 patients recorded by the njr mitch trh with uncemented accolade – revision rate of 10.7% at 4 years based on 271 patients recorded by the njr mitch trh with abg ii - rate of usage too low to estimate revision rate in view of the high revision rate when mitch trh acetabular cups/mitch trh modular heads is used in combination with uncemented accolade femoral stems, mhra advised orthopaedic surgeons to stop using this combination and provided advice on appropriate follow-up recommendations for patients with this combination of implant. according to the local supplier, this particular combination has not been distributed in hong kong. for details regarding the mhra’s latest management recommendations, please visit: http://www.Mhra.Gov.Uk/publications/safetywarnings/ medicaldevicealerts/con149600 http://www.Mhra.Gov.Uk/newscentre/pressreleases/con149601.

Device

  • Model / Serial
  • Product Description
    Medical Device Safety Alert: MITCH TRH acetabular cups/MITCH TRH modular heads (Finsbury Orthopaedics) implanted with uncemented Accolade femoral stems (Stryker Orthopaedics)
  • Manufacturer

Manufacturer