NuVasive Announces First Quarter 2021 Financial Results -- Net sales increase driven by U.S. procedural volume improvement throughout the quarter and strong international growth -- -- Simplify Cervical Artificial Disc receives FDA approval for two-level cervical total disc replacement -- -- R&D investment increase year over year to advance spine procedural segments and enabling technology roadmap -- News provided by Share this article Share this article SAN DIEGO, May 5, 2021 /PRNewswire/ -- NuVasive, Inc. (NASDAQ: NUVA), the leader in spine technology innovation, focused on transforming spine surgery with minimally disruptive, procedurally integrated solutions, today announced financial results for the quarter ended March 31, 2021.