Colo. Judge Allows Negligence, Warnings Claims to Proceed in Stryker Triathlon Knee Metal Allergy Action

DENVER — Negligence and failure-to-warn claims may proceed against Stryker Corp. in a lawsuit accusing the manufacturer of failing to instruct physicians to test patients for metal allergies before having a Triathlon Total Knee System implanted, a Colorado federal judge has ruled.

However, in the Sept. 29 order, Judge R. Brooke Jackson of the U.S. District Court for the District of Colorado dismissed the plaintiff’s design defect and warranty claims, explaining that the device was not defective just because a portion of the population might be allergic to it.

Edward Haffner underwent a total knee arthroplasty in which Dr. Roger …