What Is The 'Zimmer Durom'?
The Zimmer Durom is the cup component in a metal-on-metal hip implant manufactured by Zimmer Holdings Inc. It is used in combination with other Zimmer products to create a full hip replacement, or a hip resurfacing.
The Durom system became available for use in the UK in 2003. Like most metal-on-metal implants, its key selling point was its supposed durability in comparison to more conventional hip implants. The Durom cup also had some specific design features, including ‘circumferential equatorial fins’ on the edge of cup, which were claimed to lock in to the bone to provide immediate stability.
By 2007, it had become apparent that Durom system was associated with a higher than expected rate of cup loosening and associated early failure. The product was recalled in July 2008, but only in the USA. Zimmer also issued a notice in the USA, released by the FDA (Food and Drugs Administration), stating that the Durom cup demanded a surgical technique with a “higher degree of precision” compared to more conventional devices.
Although the device was also used in the UK, no recall or notice was issued here until October 2009, when the MHRA (the Medicines and Healthcare Products Regulatory Authority) advised that a DVD and additional literature would be provided to surgeons on how to fit the cup.
Cup loosening is a significant problem for patients, because it leads to instability of the joint, usually with associated problems of pain and impaired mobility. In most cases, the only treatment option is a further hip replacement procedure to insert a new implant.
As well as cup loosening, the Zimmer Durom was also prone to ‘metal wear’. Studies confirm a link between debris released by the metal components rubbing against each other and raised metal ion levels in the blood. Some patients were also noted by surgeons to be suffering from localised soft tissue reactions around the site of the implant, including fluid, 'pseudo-tumours', soft tissue and bone damage.
This is referred to as an “Adverse Reaction to Metal Debris” (ARMD). The effects of raised metal ions in the blood stream are not fully established, although some studies have suggested links between raised blood metal ion levels and problems such as cardiomyopathy, cognitive impairment, thyroid damage and visual and auditory impairment.
Although the Durom was never formally recalled in the UK, Zimmer allowed the product license to lapse in 2013, and the device is no longer on the market.
How You Can Claim
The European Product Liability Directive and the Consumer Protection Act 1987 provide individuals with a right to recover compensation for injuries caused by defective products. Defective products are those which do not provide the level of safety that "persons generally are entitled to expect".
The need for early revision following cup loosening and/or ARMD and any associated complications amounts to injury. We believe that those harmed by Zimmer Durom hip implants should be compensated for their injuries.
The High Court has issued a Group Litigation Order called 'the Zimmer Metasul Large Diameter Head and Durom Metal-on-Metal Hip Litigation'.
We represent many people who have been injured by Durom hip replacements, and we are one of the firms on the steering committee for the Zimmer group litigation.
Please note: You have until 31 October 2015 to join the group action being pursued in the Royal Courts of Justice. This relates to injuries caused by Zimmer Durom metal on metal hip prostheses. It is crucial you contact us as soon as possible in order to allow us the time to investigate your case efficiently before this cut-off date.
More information on this cut-off date is available here
If you think you have been injured by a Zimmer Durom hip implant, contact us online and our product liability team can provide you with free initial advice on your claim.