(January 4, 2016, 12:37 PM EST) -- ABERDEEN, Miss. — A Mississippi federal judge on Dec. 23 granted summary judgment on most claims in a pedicle screw case but ordered the parties to show cause why a claim for negligent misrepresentation of the regulatory clearance of the device is not barred by implied preemption (Rocky Estes v. Lanx, Inc., et al., No. 14-052, N.D. Miss., Aberdeen Div.; 2015 U.S. Dist. LEXIS 171184)....