NEW YORK (Dow Jones)–Shares of Alphatec Holdings Inc. (ATEC) plunged as the medical-device maker’s second-quarter results missed estimates, leading it to slash its full-year revenue guidance.
The company, which makes products for the surgical treatment of spine disorders, in March completed the purchase of France-based Scient’x S.A., though difficulties related to the international integration remain.
Chief Executive Dirk Kuyper said several factors contributed to the lower-than-expected results…
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