(February 9, 2018, 10:13 AM EST) -- CHICAGO — Lead counsel in the Zimmer NexGen knee multidistrict litigation on Feb. 6 told an Illinois federal judge that they have reached an agreement in principle that will potentially resolve all MDL cases and similar cases filed in state court as of Jan. 15 (In Re: Zimmer NexGen Knee Implant Products Liability Litigation, MDL Docket No. 2272, N.D. Ill., Eastern Div.)....