CARLSBAD, Calif., Sept. 13, 2007 (PRIME NEWSWIRE) -- Alphatec Holdings, Inc. (Nasdaq:ATEC), a medical technology company focused on the design, development, manufacturing and marketing of products for the surgical treatment of spine disorders, announced today that veteran marketing executive, Kathryn Liljestrand, has joined the company as Vice President of Marketing. Mrs. Liljestrand will focus on sales and marketing strategies for near term product launches and bringing to market products from Alphatec's robust technology and intellectual property pipeline.