Alphatec Holdings, Inc. provided unaudited revenue guidance for the quarter and year ended December 31, 2017. For the quarter, the company expects total revenue of $25.9 million to $26.3 million. U.S. commercial revenue is expected to be $20.8 million to $21.0 million. For the year, the company expects total revenue of $101.4 million to $101.8 million. U.S. commercial revenue is expected to be $86.8 million to $87.0 million.