LitPRO
A metal-on-metal (MoM) hip implant is a multi-part hip replacement device, in which both the artificial ball (femoral head) and socket (acetabulum) are made of metal. The devices are most commonly made of an alloy, such as a combination of cobalt and chromium, and do not feature non-metallic padding or cushioning between the ball and socket. This means the two parts rub directly against one another when the joint moves.
Tens of thousands of hip replacement patients have filed lawsuits against the manufacturers of their MoM hip replacements, alleging the devices are defective. Most cases claim the devices either failed prematurely and/or released metal particles into the surrounding tissue, causing complications such as metal poisoning (metallosis), tissue damage, pain, inflammation, and other issues. A substantial number of plaintiffs have had or will require revision or replacement surgeries. Many claimants also allege that manufacturers did not provide adequate warning about the devices’ potential risks.
Most MoM hip replacements have been taken off the market and defendants have already paid billions of dollars in settlements and judgments. Several thousand cases are still pending. Plaintiffs typically seek compensation for medical expenses for revision or replacement surgery, lost wages, and pain and suffering.
