The 7th U.S. Circuit Court of Appeals refused to reopen the lawsuit against Zimmer Biomet's NexGen knee implants, according to Reuters.
Here are four things to know:
1. The lawsuit alleges the NexGen implants were "prone to premature loosening in patients who engage in activities that need knee flexibility."
2. Theodore Joas, the plaintiff, sought to reopen the case. He alleged Zimmer Biomet failed to warn him about the implant's defects. He was the recipient of a Zimmer Biomet knee implant.
3. He also claimed the device company did not provide his surgeon with proper warning either.
4. The appeals court upheld the previous court's decision. Mr. Joas case was chosen to be a test case to go to trial in the consolidated lawsuits against the NexGen implant.