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J&J Jury Told Hip Has Many Design Defects Causing Failure

The 93,000 metal hip implants that Johnson & Johnson’s DePuy unit recalled in 2010 had multiple design defects that caused them to fail at a much greater rate than other devices, a biomedical engineering expert told a jury.

Dennis Bobyn, a McGill University professor, testified today at the first trial among 10,000 lawsuits over claims J&J defectively designed ASR hips. At the time of the recall, J&J said 12 percent of the devices failed within five years, requiring follow-up surgeries known as revisions.