** Shares of medical device company Alphatec Holdings Inc
ATEC.O down 3.7% at $13.16
** Expects Q3 revenue from its U.S. spinal device business
to be down sequentially, from Q2 2021 urn:newsml:reuters.com:*:nBw84x4Yba
** Says surgical procedure volumes have been
lower-than-expected due to resurgence of COVID-19 cases in the
United States
** However, co says it expects U.S. spine revenue to grow
over 25% year-over-year in Q3, citing factors such as strength
of adoption of its devices by surgeons
** Including session's moves, stock down 9.4% YTD
(Reporting by Amruta Khandekar)
((Amruta.Khandekar@thomsonreuters.com;))