(February 23, 2018, 11:03 AM EST) -- CINCINNATI — The Sixth Circuit U.S. Court of Appeals on Feb. 22 affirmed the preemption dismissal of a bone-growth product liability lawsuit filed by 53 plaintiffs, finding that they forfeited key arguments they raised on appeal (Michelle Agee, et al. v. Alphatec Spine, Inc., et al., No. 17-3296, 6th Cir., 2018 U.S. App. LEXIS 4194)....