Alphatec Holdings, Inc. provided revenue guidance for the fourth quarter and full year ended December 31, 2018. For the quarter, the company expects total revenue of $25.2 million to $25.7 million. For the year, the company expects total revenue of $91.5 million to $92.0 million. The company provided revenue guidance for the year 2019. For the year, the company expects total revenue of $98 million to $103 million.